diff --git a/libdap-chain-net-srv b/libdap-chain-net-srv
deleted file mode 160000
index efddc6a76a3682a04d7f7d9c4b153de5a602bea0..0000000000000000000000000000000000000000
--- a/libdap-chain-net-srv
+++ /dev/null
@@ -1 +0,0 @@
-Subproject commit efddc6a76a3682a04d7f7d9c4b153de5a602bea0
diff --git a/libdap-chain-net-srv/.gitignore b/libdap-chain-net-srv/.gitignore
new file mode 100755
index 0000000000000000000000000000000000000000..4bf974a8994c2ee687383ddb4194759098412bb5
--- /dev/null
+++ b/libdap-chain-net-srv/.gitignore
@@ -0,0 +1,52 @@
+# Prerequisites
+*.d
+*.autosave
+# Object files
+*.o
+*.ko
+*.obj
+*.elf
+
+# Linker output
+*.ilk
+*.map
+*.exp
+
+# Precompiled Headers
+*.gch
+*.pch
+
+# Libraries
+*.lib
+*.a
+*.la
+*.lo
+
+# Shared objects (inc. Windows DLLs)
+*.dll
+*.so
+*.so.*
+*.dylib
+
+# Executables
+*.exe
+*.out
+*.app
+*.i*86
+*.x86_64
+*.hex
+
+# Debug files
+*.dSYM/
+*.su
+*.idb
+*.pdb
+
+# Kernel Module Compile Results
+*.mod*
+*.cmd
+.tmp_versions/
+modules.order
+Module.symvers
+Mkfile.old
+dkms.conf
diff --git a/libdap-chain-net-srv/CMakeLists.txt b/libdap-chain-net-srv/CMakeLists.txt
new file mode 100755
index 0000000000000000000000000000000000000000..442dcdb31f6944ffb1ee10a402723514e4638382
--- /dev/null
+++ b/libdap-chain-net-srv/CMakeLists.txt
@@ -0,0 +1,30 @@
+cmake_minimum_required(VERSION 2.8)
+project (dap_chain_net_srv)
+  
+set(DAP_CHAIN_NET_SRV_SRCS 
+      dap_chain_net_srv.c
+      dap_chain_net_srv_order.c
+      dap_chain_net_srv_client.c
+      dap_chain_net_srv_common.c
+      dap_chain_net_srv_stream_session.c
+   )
+
+set(DAP_CHAIN_NET_SRV_HEADERS
+        dap_chain_net_srv.h
+        dap_chain_net_srv_client.h
+        dap_chain_net_srv_order.h
+        dap_chain_net_srv_common.h
+	dap_chain_net_srv_stream_session.h
+    )
+
+
+
+add_library(${PROJECT_NAME} STATIC ${DAP_CHAIN_NET_SRV_SRCS} ${DAP_CHAIN_NET_SRV_HEADERS})
+
+target_link_libraries(dap_chain_net_srv dap_core dap_crypto dap_chain dap_chain_crypto dap_chain_net dap_chain_wallet)
+
+target_include_directories(dap_chain_net_srv INTERFACE .)
+
+set(${PROJECT_NAME}_DEFINITIONS CACHE INTERNAL "${PROJECT_NAME}: Definitions" FORCE)
+
+set(${PROJECT_NAME}_INCLUDE_DIRS ${PROJECT_SOURCE_DIR} CACHE INTERNAL "${PROJECT_NAME}: Include Directories" FORCE)
diff --git a/libdap-chain-net-srv/LICENSE b/libdap-chain-net-srv/LICENSE
new file mode 100755
index 0000000000000000000000000000000000000000..94a9ed024d3859793618152ea559a168bbcbb5e2
--- /dev/null
+++ b/libdap-chain-net-srv/LICENSE
@@ -0,0 +1,674 @@
+                    GNU GENERAL PUBLIC LICENSE
+                       Version 3, 29 June 2007
+
+ Copyright (C) 2007 Free Software Foundation, Inc. <http://fsf.org/>
+ Everyone is permitted to copy and distribute verbatim copies
+ of this license document, but changing it is not allowed.
+
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+    but WITHOUT ANY WARRANTY; without even the implied warranty of
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+may consider it more useful to permit linking proprietary applications with
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+<http://www.gnu.org/philosophy/why-not-lgpl.html>.
diff --git a/libdap-chain-net-srv/README.md b/libdap-chain-net-srv/README.md
new file mode 100755
index 0000000000000000000000000000000000000000..2b53896b89a020d902e793cc229b0d9b63d13b73
--- /dev/null
+++ b/libdap-chain-net-srv/README.md
@@ -0,0 +1,2 @@
+# libdap-chain-net-srv
+DapChain Network Service API
diff --git a/libdap-chain-net-srv/dap_chain_net_srv.c b/libdap-chain-net-srv/dap_chain_net_srv.c
new file mode 100755
index 0000000000000000000000000000000000000000..8d7b8217c9442c427872ceb16fcfc04e4e792e05
--- /dev/null
+++ b/libdap-chain-net-srv/dap_chain_net_srv.c
@@ -0,0 +1,725 @@
+/*
+ * Authors:
+ * Dmitriy A. Gearasimov <gerasimov.dmitriy@demlabs.net>
+ * Aleksandr Lysikov <alexander.lysikov@demlabs.net>
+ * DeM Labs Inc.   https://demlabs.net
+ * DeM Labs Open source community https://github.com/demlabsinc
+ * Copyright  (c) 2017-2018
+ * All rights reserved.
+
+ This file is part of DAP (Deus Applications Prototypes) the open source project
+
+ DAP (Deus Applicaions Prototypes) is free software: you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation, either version 3 of the License, or
+ (at your option) any later version.
+
+ DAP is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with any DAP based project.  If not, see <http://www.gnu.org/licenses/>.
+ */
+#include <stdlib.h>
+#include <stdio.h>
+#include <time.h>
+#include <stdlib.h>
+#include <stddef.h>
+#include <stdint.h>
+
+#ifdef WIN32
+#include <winsock2.h>
+#include <windows.h>
+#include <mswsock.h>
+#include <ws2tcpip.h>
+#include <io.h>
+#endif
+
+#include <pthread.h>
+#include <dirent.h>
+
+#include "uthash.h"
+#include "utlist.h"
+#include "dap_list.h"
+#include "dap_string.h"
+
+#include "dap_chain.h"
+#include "dap_chain_common.h"
+#include "dap_chain_net.h"
+#include "dap_chain_net_srv.h"
+#include "dap_chain_net_srv_order.h"
+#include "dap_chain_net_srv_stream_session.h"
+
+#include "dap_chain_node_cli_cmd.h"
+
+#define LOG_TAG "chain_net_srv"
+
+static size_t m_uid_count;
+static dap_chain_net_srv_uid_t * m_uid;
+
+
+typedef struct service_list {
+    dap_chain_net_srv_uid_t uid;
+    dap_chain_net_srv_t * srv;
+    UT_hash_handle hh;
+} service_list_t;
+
+// list of active services
+static service_list_t *s_srv_list = NULL;
+// for separate access to s_srv_list
+static pthread_mutex_t s_srv_list_mutex = PTHREAD_MUTEX_INITIALIZER;
+static int s_cli_net_srv( int argc, char **argv, void *arg_func, char **a_str_reply);
+static void s_load(const char * a_path);
+static void s_load_all(void);
+
+/**
+ * @brief dap_chain_net_srv_init
+ * @return
+ */
+int dap_chain_net_srv_init(dap_config_t * a_cfg)
+{
+    m_uid = NULL;
+    m_uid_count = 0;
+    if( dap_chain_net_srv_order_init() != 0 )
+        return -1;
+
+    dap_chain_node_cli_cmd_item_create ("net_srv", s_cli_net_srv, NULL, "Network services managment",
+        "net_srv -net <chain net name> order find [-direction <sell|buy>][-srv_uid <Service UID>] [-price_unit <price unit>]\\\n"
+        "                                         [-price_token <Token ticker>] [-price_min <Price minimum>] [-price_max <Price maximum>]\n"
+        "\tOrders list, all or by UID and/or class\n"
+        "net_srv -net <chain net name> order delete -hash <Order hash>\n"
+        "\tOrder delete\n"
+        "net_srv -net <chain net name> order dump -hash <Order hash>\n"
+        "\tOrder dump info\n"
+        "net_srv -net <chain net name> order create -direction <sell|buy> -srv_uid <Service UID> -price <Price>\\\n"
+        "        -price_unit <Price Unit> -price_token <Token ticker> [-node_addr <Node Address>] [-tx_cond <TX Cond Hash>] \\\n"
+        "        [-expires <Unix time when expires>] [-ext <Extension with params>]\\\n"
+        "\tOrder create\n" );
+
+    s_load_all();
+    return 0;
+}
+
+/**
+ * @brief s_load_all
+ */
+void s_load_all(void)
+{
+    char * l_net_dir_str = dap_strdup_printf("%s/service.d", dap_config_path());
+    DIR * l_net_dir = opendir( l_net_dir_str);
+    if ( l_net_dir ){
+        struct dirent * l_dir_entry;
+        while ( (l_dir_entry = readdir(l_net_dir) )!= NULL ){
+            if (l_dir_entry->d_name[0]=='\0' || l_dir_entry->d_name[0]=='.')
+                continue;
+            // don't search in directories
+            char * l_full_path = dap_strdup_printf("%s/%s", l_net_dir_str, l_dir_entry->d_name);
+            if(dap_dir_test(l_full_path)) {
+                DAP_DELETE(l_full_path);
+                continue;
+            }
+            // search only ".cfg" files
+            if(strlen(l_dir_entry->d_name) > 4) { // It has non zero name excluding file extension
+                if(strncmp(l_dir_entry->d_name + strlen(l_dir_entry->d_name) - 4, ".cfg", 4) != 0) {
+                    // its not .cfg file
+                    continue;
+                }
+            }
+            log_it(L_DEBUG,"Service config %s try to load", l_dir_entry->d_name);
+            //char* l_dot_pos = rindex(l_dir_entry->d_name,'.');
+            char* l_dot_pos = strchr(l_dir_entry->d_name,'.');
+            if ( l_dot_pos )
+                *l_dot_pos = '\0';
+            s_load(l_full_path );
+            DAP_DELETE(l_full_path);
+        }
+        closedir(l_net_dir);
+    }
+    DAP_DELETE (l_net_dir_str);
+}
+
+/**
+ * @brief s_load
+ * @param a_name
+ */
+static void s_load(const char * a_path)
+{
+    log_it ( L_INFO, "Service config %s", a_path);
+    // TODO open service
+}
+
+
+/**
+ * @brief dap_chain_net_srv_deinit
+ */
+void dap_chain_net_srv_deinit(void)
+{
+    // TODO Stop all services
+
+    dap_chain_net_srv_del_all();
+}
+
+
+/**
+ * @brief s_cli_net_srv
+ * @param argc
+ * @param argv
+ * @param a_str_reply
+ * @return
+ */
+static int s_cli_net_srv( int argc, char **argv, void *arg_func, char **a_str_reply)
+{
+    int arg_index = 1;
+    dap_chain_net_t * l_net = NULL;
+
+    int ret = dap_chain_node_cli_cmd_values_parse_net_chain( &arg_index, argc, argv, a_str_reply, NULL, &l_net );
+    if ( l_net ) {
+        char * l_orders_group = dap_chain_net_srv_order_get_gdb_group( l_net );
+
+        dap_string_t *l_string_ret = dap_string_new("");
+        const char *l_order_str = NULL;
+        dap_chain_node_cli_find_option_val(argv, arg_index, argc, "order", &l_order_str);
+
+        // Order direction
+        const char *l_direction_str = NULL;
+        dap_chain_node_cli_find_option_val(argv, arg_index, argc, "-direction", &l_direction_str);
+
+        const char* l_srv_uid_str = NULL;
+        dap_chain_node_cli_find_option_val(argv, arg_index, argc, "-srv_uid", &l_srv_uid_str);
+
+        const char* l_srv_class_str = NULL;
+        dap_chain_node_cli_find_option_val(argv, arg_index, argc, "-srv_class", &l_srv_class_str);
+
+        const char* l_node_addr_str = NULL;
+        dap_chain_node_cli_find_option_val(argv, arg_index, argc, "-node_addr", &l_node_addr_str);
+
+        const char* l_tx_cond_hash_str = NULL;
+        dap_chain_node_cli_find_option_val(argv, arg_index, argc, "-tx_cond", &l_tx_cond_hash_str);
+
+        const char* l_price_str = NULL;
+        dap_chain_node_cli_find_option_val(argv, arg_index, argc, "-price", &l_price_str);
+
+        const char* l_expires_str = NULL;
+        dap_chain_node_cli_find_option_val(argv, arg_index, argc, "-expires", &l_expires_str);
+
+        const char* l_price_unit_str = NULL;
+        dap_chain_node_cli_find_option_val(argv, arg_index, argc, "-price_unit", &l_price_unit_str);
+
+        const char* l_price_token_str = NULL;
+        dap_chain_node_cli_find_option_val(argv, arg_index, argc, "-price_token", &l_price_token_str);
+
+        const char* l_ext = NULL;
+        dap_chain_node_cli_find_option_val(argv, arg_index, argc, "-ext", &l_ext);
+
+        const char *l_order_hash_str = NULL;
+        dap_chain_node_cli_find_option_val(argv, arg_index, argc, "-hash", &l_order_hash_str);
+
+        const char* l_region_str = NULL;
+        dap_chain_node_cli_find_option_val(argv, arg_index, argc, "-region", &l_region_str);
+        const char* l_continent_str = NULL;
+        dap_chain_node_cli_find_option_val(argv, arg_index, argc, "-continent", &l_continent_str);
+
+        int8_t l_continent_num = dap_chain_net_srv_order_continent_to_num(l_continent_str);
+
+        if(l_continent_str && l_continent_num <= 0) {
+            dap_string_t *l_string_err = dap_string_new("Unrecognized \"-continent\" option=");
+            dap_string_append_printf(l_string_err, "\"%s\". Variants: ", l_continent_str);
+            int i = 0;
+            while(1) {
+                const char *l_continent = dap_chain_net_srv_order_continent_to_str(i);
+                if(!l_continent)
+                    break;
+                if(!i)
+                    dap_string_append_printf(l_string_err, "\"%s\"", l_continent);
+                else
+                    dap_string_append_printf(l_string_err, ", \"%s\"", l_continent);
+                i++;
+            }
+            dap_string_append_printf(l_string_ret, "%s\n", l_string_err->str);
+            dap_string_free(l_string_err, true);
+            ret = -1;
+        }
+        // Update order
+        else if(dap_strcmp(l_order_str, "update") == 0) {
+
+            if(!l_order_hash_str) {
+                ret = -1;
+                dap_string_append(l_string_ret, "Can't find option '-hash'\n");
+            }
+            else {
+                dap_chain_net_srv_order_t * l_order = dap_chain_net_srv_order_find_by_hash_str(l_net, l_order_hash_str);
+                if(!l_order) {
+                    ret = -2;
+                    dap_string_append_printf(l_string_ret, "Can't find order with hash %s\n", l_order_hash_str);
+                }
+                else {
+                    if(l_ext) {
+                        l_order->ext_size = strlen(l_ext) + 1;
+                        l_order = DAP_REALLOC(l_order, sizeof(dap_chain_net_srv_order_t) + l_order->ext_size);
+                        strncpy(l_order->ext, l_ext, l_order->ext_size);
+                    }
+                    else
+                        dap_chain_net_srv_order_set_continent_region(&l_order, l_continent_num, l_region_str);
+                    /*if(l_region_str) {
+                        strncpy(l_order->region, l_region_str, min(sizeof(l_order->region) - 1, strlen(l_region_str) + 1));
+                    }
+                    if(l_continent_num>=0)
+                        l_order->continent = l_continent_num;*/
+
+
+                    ret = dap_chain_net_srv_order_save(l_net, l_order);
+                    if(!ret)
+                        ret = 0;
+                    if(!ret) {
+                        dap_chain_hash_fast_t l_new_order_hash;
+                        size_t l_new_order_size = dap_chain_net_srv_order_get_size(l_order);
+                        dap_hash_fast(l_order, l_new_order_size, &l_new_order_hash);
+                        char * l_new_order_hash_str = dap_chain_hash_fast_to_str_new(&l_new_order_hash);
+                        // delete prev order
+                        if(dap_strcmp(l_new_order_hash_str, l_order_hash_str))
+                            dap_chain_net_srv_order_delete_by_hash_str(l_net, l_order_hash_str);
+                        DAP_DELETE(l_new_order_hash_str);
+                        dap_string_append_printf(l_string_ret, "order updated\n");
+                    }
+                    else
+                        dap_string_append_printf(l_string_ret, "order did not updated\n");
+
+                    DAP_DELETE(l_order);
+                }
+            }
+
+        }
+        else if ( dap_strcmp( l_order_str, "find" ) == 0 ){
+
+            // Order direction
+            const char *l_direction_str = NULL;
+            dap_chain_node_cli_find_option_val(argv, arg_index, argc, "-direction", &l_direction_str);
+
+            // Select with specified service uid
+            const char *l_srv_uid_str = NULL;
+            dap_chain_node_cli_find_option_val(argv, arg_index, argc, "-srv_uid", &l_srv_uid_str);
+
+
+            // Select with specified price units
+            const char*  l_price_unit_str = NULL;
+            dap_chain_node_cli_find_option_val(argv, arg_index, argc, "-price_unit", &l_price_unit_str);
+
+            // Token ticker
+            const char*  l_price_token_str = NULL;
+            dap_chain_node_cli_find_option_val(argv, arg_index, argc, "-price_token", &l_price_token_str);
+
+            // Select with price not more than price_min
+            const char*  l_price_min_str = NULL;
+            dap_chain_node_cli_find_option_val(argv, arg_index, argc, "-price_min", &l_price_min_str);
+
+            // Select with price not more than price_max
+            const char*  l_price_max_str = NULL;
+            dap_chain_node_cli_find_option_val(argv, arg_index, argc, "-price_max", &l_price_max_str);
+
+            dap_chain_net_srv_order_direction_t l_direction = SERV_DIR_UNDEFINED;
+            dap_chain_net_srv_uid_t l_srv_uid={{0}};
+            uint64_t l_price_min=0, l_price_max =0 ;
+            dap_chain_net_srv_price_unit_uid_t l_price_unit={{0}};
+
+            if ( l_direction_str ){
+                if ( strcmp(l_direction_str, "sell")==0)
+                    l_direction = SERV_DIR_SELL;
+                else if ( strcmp(l_direction_str, "buy")==0)
+                    l_direction = SERV_DIR_BUY;
+            }
+
+            if ( l_srv_uid_str)
+                l_srv_uid.uint64 = (uint128_t) atoll( l_srv_uid_str);
+
+            if ( l_price_min_str )
+                l_price_min = (uint64_t) atoll ( l_price_min_str );
+
+            if ( l_price_max_str )
+                l_price_max = (uint64_t) atoll ( l_price_max_str );
+            if ( l_price_unit_str)
+                l_price_unit.uint32 = (uint32_t) atol ( l_price_unit_str );
+
+            dap_chain_net_srv_order_t * l_orders;
+            size_t l_orders_num = 0;
+            if( dap_chain_net_srv_order_find_all_by( l_net, l_direction,l_srv_uid,l_price_unit,l_price_token_str,l_price_min, l_price_max,&l_orders,&l_orders_num) == 0 ){
+                dap_string_append_printf(l_string_ret,"Found %u orders:\n",l_orders_num);
+                size_t l_orders_size = 0;
+                for (size_t i = 0; i< l_orders_num; i++){
+                    dap_chain_net_srv_order_t *l_order =(dap_chain_net_srv_order_t *) (((byte_t*) l_orders) + l_orders_size);
+                    dap_chain_net_srv_order_dump_to_string(l_order, l_string_ret);
+                    l_orders_size += dap_chain_net_srv_order_get_size(l_order);
+                    dap_string_append(l_string_ret,"\n");
+                }
+                ret = 0;
+            }else{
+                ret = -5 ;
+                dap_string_append(l_string_ret,"Can't get orders: some internal error or wrong params\n");
+            }
+            DAP_DELETE(l_orders);
+
+        }else if( dap_strcmp( l_order_str, "dump" ) == 0 ){
+            // Select with specified service uid
+            if ( l_order_hash_str ){
+                dap_chain_net_srv_order_t * l_order = dap_chain_net_srv_order_find_by_hash_str( l_net, l_order_hash_str );
+                if (l_order){
+                    dap_chain_net_srv_order_dump_to_string(l_order,l_string_ret);
+                    ret = 0;
+                }else{
+                    ret = -7 ;
+                    dap_string_append_printf(l_string_ret,"Can't find order with hash %s\n", l_order_hash_str );
+                }
+            } else{
+
+                dap_chain_net_srv_order_t * l_orders = NULL;
+                size_t l_orders_num =0;
+                dap_chain_net_srv_uid_t l_srv_uid={{0}};
+                uint64_t l_price_min=0, l_price_max =0 ;
+                dap_chain_net_srv_price_unit_uid_t l_price_unit={{0}};
+                dap_chain_net_srv_order_direction_t l_direction = SERV_DIR_UNDEFINED;
+
+                if( dap_chain_net_srv_order_find_all_by( l_net,l_direction,l_srv_uid,l_price_unit, NULL, l_price_min, l_price_max,&l_orders,&l_orders_num) == 0 ){
+                    dap_string_append_printf(l_string_ret,"Found %zd orders:\n",l_orders_num);
+                    size_t l_orders_size = 0;
+                    for(size_t i = 0; i < l_orders_num; i++) {
+                        dap_chain_net_srv_order_t *l_order = (char*) l_orders + l_orders_size;
+                        dap_chain_net_srv_order_dump_to_string(l_order, l_string_ret);
+                        l_orders_size += dap_chain_net_srv_order_get_size(l_order);
+                        dap_string_append(l_string_ret, "\n");
+                    }
+                    ret = 0;
+                }else{
+                    ret = -5 ;
+                    dap_string_append(l_string_ret,"Can't get orders: some internal error or wrong params\n");
+                }
+                DAP_DELETE(l_orders);
+            }
+        }else if( dap_strcmp( l_order_str, "delete" ) == 0 ){
+            // Select with specified service uid
+            const char *l_order_hash_str = NULL;
+            dap_chain_node_cli_find_option_val(argv, arg_index, argc, "-hash", &l_order_hash_str);
+            if ( l_order_hash_str ){
+                dap_chain_net_srv_order_t * l_order = dap_chain_net_srv_order_find_by_hash_str( l_net, l_order_hash_str );
+                if (l_order && dap_chain_net_srv_order_delete_by_hash_str(l_net,l_order_hash_str) == 0){
+                    ret = 0 ;
+                    dap_string_append_printf(l_string_ret,"Deleted order %s\n", l_order_hash_str );
+                }else{
+                    ret = -8 ;
+                    dap_string_append_printf(l_string_ret,"Can't find order with hash %s\n", l_order_hash_str );
+                }
+                DAP_DELETE(l_order);
+            } else{
+                ret = -9 ;
+                dap_string_append(l_string_ret,"need -hash param to obtain what the order we need to dump\n");
+            }
+        }else if( dap_strcmp( l_order_str, "create" ) == 0 ){
+
+            if ( l_srv_uid_str && l_price_str && l_price_token_str && l_price_unit_str) {
+                dap_chain_net_srv_uid_t l_srv_uid={{0}};
+                dap_chain_node_addr_t l_node_addr={0};
+                dap_chain_hash_fast_t l_tx_cond_hash={{0}};
+                dap_chain_time_t l_expires=0; // TS when the service expires
+                uint64_t l_price=0;
+                char l_price_token[DAP_CHAIN_TICKER_SIZE_MAX]={0};
+                dap_chain_net_srv_price_unit_uid_t l_price_unit={{0}};
+                dap_chain_net_srv_order_direction_t l_direction = SERV_DIR_UNDEFINED;
+                if ( l_direction_str ){
+                    if ( strcmp(l_direction_str, "sell") == 0 ){
+                        l_direction = SERV_DIR_SELL;
+                        log_it(L_DEBUG, "Created order to sell");
+                    }else if ( strcmp(l_direction_str, "buy")==0){
+                        l_direction = SERV_DIR_BUY;
+                        log_it(L_DEBUG, "Created order to buy");
+                    }else
+                        log_it(L_WARNING, "Undefined order direction");
+                }
+
+
+                if (l_expires_str)
+                    l_expires = (dap_chain_time_t ) atoll( l_expires_str);
+                l_srv_uid.uint64 = (uint64_t) atoll( l_srv_uid_str);
+                if (l_node_addr_str){
+
+                    if (dap_chain_node_addr_from_str( &l_node_addr, l_node_addr_str ) == 0 )
+                        log_it( L_DEBUG, "node addr " NODE_ADDR_FP_STR, NODE_ADDR_FP_ARGS_S(l_node_addr) );
+                    else
+                        log_it( L_ERROR, "Can't parse \"%s\" as node addr");
+                }
+                if (l_tx_cond_hash_str)
+                    dap_chain_str_to_hash_fast (l_tx_cond_hash_str, &l_tx_cond_hash);
+                l_price = (uint64_t) atoll ( l_price_str );
+                l_price_unit.uint32 = (uint32_t) atol ( l_price_unit_str );
+
+                char * l_order_new_hash_str = dap_chain_net_srv_order_create(
+                            l_net,l_direction, l_srv_uid, l_node_addr,l_tx_cond_hash, l_price, l_price_unit,
+                            l_price_token, l_expires,l_ext, l_region_str, l_continent_num);
+                if (l_order_new_hash_str)
+                    dap_string_append_printf( l_string_ret, "Created order %s\n", l_order_new_hash_str);
+                else{
+                    dap_string_append_printf( l_string_ret, "Error! Can't created order\n");
+                    ret = -4;
+                }
+            } else {
+                dap_string_append_printf( l_string_ret, "Missed some required params\n");
+                ret=-5;
+            }
+        } else {
+            dap_string_append_printf( l_string_ret, "Unknown subcommand \n");
+            ret=-3;
+        }
+        dap_chain_node_cli_set_reply_text(a_str_reply, l_string_ret->str);
+        dap_string_free(l_string_ret, true);
+    }
+
+    return ret;
+}
+
+/**
+ * @brief dap_chain_net_srv_add
+ * @param a_uid
+ * @param a_callback_request
+ * @param a_callback_response_success
+ * @param a_callback_response_error
+ * @return
+ */
+dap_chain_net_srv_t* dap_chain_net_srv_add(dap_chain_net_srv_uid_t a_uid,dap_chain_net_srv_callback_data_t a_callback_request,
+                                           dap_chain_net_srv_callback_data_t a_callback_response_success,
+                                           dap_chain_net_srv_callback_data_t a_callback_response_error,
+                                           dap_chain_net_srv_callback_data_t a_callback_receipt_next_success)
+{
+    service_list_t *l_sdata = NULL;
+    dap_chain_net_srv_t * l_srv = NULL;
+    dap_chain_net_srv_uid_t l_uid = {.uint64 = a_uid.uint64 }; // Copy to let then compiler to pass args via registers not stack
+    pthread_mutex_lock(&s_srv_list_mutex);
+    HASH_FIND(hh, s_srv_list, &l_uid, sizeof(l_uid), l_sdata);
+    if(l_sdata == NULL) {
+        l_srv = DAP_NEW_Z(dap_chain_net_srv_t);
+        l_srv->uid.uint64 = a_uid.uint64;
+        l_srv->callback_requested = a_callback_request;
+        l_srv->callback_receipt_first_success = a_callback_response_success;
+        l_srv->callback_response_error = a_callback_response_error;
+        l_srv->callback_receipt_next_success = a_callback_receipt_next_success;
+        l_sdata = DAP_NEW_Z(service_list_t);
+        memcpy(&l_sdata->uid, &l_uid, sizeof(l_uid));
+        l_sdata->srv = l_srv;//DAP_NEW(dap_chain_net_srv_t);
+        //memcpy(l_sdata->srv, l_srv, sizeof(dap_chain_net_srv_t));
+        HASH_ADD(hh, s_srv_list, uid, sizeof(l_srv->uid), l_sdata);
+    }else{
+        log_it(L_ERROR, "Already present service with 0x%016llX ", a_uid.uint64);
+    }
+    pthread_mutex_unlock(&s_srv_list_mutex);
+    return l_srv;
+}
+
+/**
+ * @brief dap_chain_net_srv_set_ch_callbacks
+ * @param a_uid
+ * @param a_callback_stream_ch_opened
+ * @param a_callback_stream_ch_read
+ * @param a_callback_stream_ch_write
+ * @param a_callback_stream_ch_closed
+ * @return
+ */
+int dap_chain_net_srv_set_ch_callbacks(dap_chain_net_srv_uid_t a_uid,
+                                       dap_chain_net_srv_callback_ch_t a_callback_stream_ch_opened,
+                                       dap_chain_net_srv_callback_data_t a_callback_stream_ch_read,
+                                       dap_chain_net_srv_callback_ch_t a_callback_stream_ch_write,
+                                       dap_chain_net_srv_callback_ch_t a_callback_stream_ch_closed
+                                       )
+{
+    service_list_t *l_sdata = NULL;
+    int l_ret =0;
+    dap_chain_net_srv_t * l_srv = NULL;
+    dap_chain_net_srv_uid_t l_uid = {.uint64 = a_uid.uint64 }; // Copy to let then compiler to pass args via registers not stack
+
+    pthread_mutex_lock(&s_srv_list_mutex);
+    HASH_FIND(hh, s_srv_list, &l_uid, sizeof(l_uid), l_sdata);
+    if( l_sdata ) {
+        l_srv = l_sdata->srv;
+        l_srv->callback_stream_ch_opened = a_callback_stream_ch_opened;
+        l_srv->callback_stream_ch_read = a_callback_stream_ch_read;
+        l_srv->callback_stream_ch_write = a_callback_stream_ch_write;
+        l_srv->callback_stream_ch_closed = a_callback_stream_ch_closed;
+    }else{
+        log_it(L_ERROR, "Can't find service with 0x%016llX", a_uid.uint64);
+        l_ret= -1;
+    }
+    pthread_mutex_unlock(&s_srv_list_mutex);
+    return l_ret;
+}
+
+
+/**
+ * @brief dap_chain_net_srv_del
+ * @param a_srv
+ */
+void dap_chain_net_srv_del(dap_chain_net_srv_t * a_srv)
+{
+    service_list_t *l_sdata;
+    pthread_mutex_lock(&s_srv_list_mutex);
+    HASH_FIND(hh, s_srv_list, a_srv, sizeof(dap_chain_net_srv_uid_t), l_sdata);
+    if(l_sdata) {
+        DAP_DELETE(l_sdata);
+        HASH_DEL(s_srv_list, l_sdata);
+    }
+    pthread_mutex_unlock(&s_srv_list_mutex);
+}
+
+/**
+ * @brief dap_chain_net_srv_call_write_all
+ * @param a_client
+ */
+void dap_chain_net_srv_call_write_all(dap_stream_ch_t * a_client)
+{
+    service_list_t *l_sdata, *l_sdata_tmp;
+    pthread_mutex_lock(&s_srv_list_mutex);
+    HASH_ITER(hh, s_srv_list , l_sdata, l_sdata_tmp)
+    {
+        if ( l_sdata->srv->callback_stream_ch_write)
+         l_sdata->srv->callback_stream_ch_write(l_sdata->srv, a_client);
+    }
+    pthread_mutex_unlock(&s_srv_list_mutex);
+}
+
+/**
+ * @brief dap_chain_net_srv_call_opened_all
+ * @param a_client
+ */
+void dap_chain_net_srv_call_opened_all(dap_stream_ch_t * a_client)
+{
+    service_list_t *l_sdata, *l_sdata_tmp;
+    pthread_mutex_lock(&s_srv_list_mutex);
+    HASH_ITER(hh, s_srv_list , l_sdata, l_sdata_tmp)
+    {
+        if ( l_sdata->srv->callback_stream_ch_opened)
+         l_sdata->srv->callback_stream_ch_opened(l_sdata->srv, a_client);
+    }
+    pthread_mutex_unlock(&s_srv_list_mutex);
+}
+
+void dap_chain_net_srv_call_closed_all(dap_stream_ch_t * a_client)
+{
+    service_list_t *l_sdata, *l_sdata_tmp;
+    pthread_mutex_lock(&s_srv_list_mutex);
+    HASH_ITER(hh, s_srv_list , l_sdata, l_sdata_tmp)
+    {
+        if ( l_sdata->srv->callback_stream_ch_closed)
+         l_sdata->srv->callback_stream_ch_closed(l_sdata->srv, a_client);
+    }
+    pthread_mutex_unlock(&s_srv_list_mutex);
+}
+
+
+
+/**
+ * @brief dap_chain_net_srv_del_all
+ * @param a_srv
+ */
+void dap_chain_net_srv_del_all(void)
+{
+    service_list_t *l_sdata, *l_sdata_tmp;
+    pthread_mutex_lock(&s_srv_list_mutex);
+    HASH_ITER(hh, s_srv_list , l_sdata, l_sdata_tmp)
+    {
+        DAP_DELETE(l_sdata);
+        HASH_DEL(s_srv_list, l_sdata);
+    }
+    pthread_mutex_unlock(&s_srv_list_mutex);
+}
+
+/**
+ * @brief dap_chain_net_srv_get
+ * @param a_uid
+ * @return
+ */
+dap_chain_net_srv_t * dap_chain_net_srv_get(dap_chain_net_srv_uid_t a_uid)
+{
+    service_list_t *l_sdata = NULL;
+    pthread_mutex_lock(&s_srv_list_mutex);
+    HASH_FIND(hh, s_srv_list, &a_uid, sizeof(dap_chain_net_srv_uid_t), l_sdata);
+    pthread_mutex_unlock(&s_srv_list_mutex);
+    return (l_sdata) ? l_sdata->srv : NULL;
+}
+
+/**
+ * @brief dap_chain_net_srv_count
+ * @return
+ */
+ size_t dap_chain_net_srv_count(void)
+{
+    size_t l_count = 0;
+    service_list_t *l_sdata, *l_sdata_tmp;
+    pthread_mutex_lock(&s_srv_list_mutex);
+    HASH_ITER(hh, s_srv_list , l_sdata, l_sdata_tmp)
+    {
+        l_count++;
+    }
+    pthread_mutex_unlock(&s_srv_list_mutex);
+    return l_count;
+}
+
+/**
+ * @brief dap_chain_net_srv_list
+ * @return
+ */
+const dap_chain_net_srv_uid_t * dap_chain_net_srv_list(void)
+{
+    static dap_chain_net_srv_uid_t *l_srv_uids = NULL;
+    static size_t l_count_last = 0;
+    size_t l_count_cur = 0;
+    dap_list_t *l_list = NULL;
+    service_list_t *l_sdata, *l_sdata_tmp;
+    pthread_mutex_lock(&s_srv_list_mutex);
+    // count the number of services and save them in list
+    HASH_ITER(hh, s_srv_list , l_sdata, l_sdata_tmp)
+    {
+        l_list = dap_list_append(l_list, l_sdata);
+        l_count_cur++;
+    }
+    // fill the output array
+    if(l_count_cur > 0) {
+        if(l_count_cur != l_count_last) {
+            DAP_DELETE(l_srv_uids);
+            l_srv_uids = DAP_NEW_SIZE(dap_chain_net_srv_uid_t, sizeof(dap_chain_net_srv_uid_t) * l_count_cur);
+        }
+        for(size_t i = 0; i < l_count_cur; i++) {
+            service_list_t *l_sdata = l_list->data;
+            memcpy(l_srv_uids + i, &l_sdata->uid, sizeof(dap_chain_net_srv_uid_t));
+        }
+    }
+    // save new number of services
+    l_count_last = l_count_cur;
+    pthread_mutex_unlock(&s_srv_list_mutex);
+    dap_list_free(l_list);
+    return l_srv_uids;
+}
+
+/**
+ * @brief dap_chain_net_srv_issue_receipt
+ * @param a_srv
+ * @param a_usage
+ * @param a_price
+ * @return
+ */
+dap_chain_datum_tx_receipt_t * dap_chain_net_srv_issue_receipt(dap_chain_net_srv_t *a_srv,
+                dap_chain_net_srv_usage_t * a_usage,
+                dap_chain_net_srv_price_t * a_price,
+                const void * a_ext, size_t a_ext_size
+                )
+{
+    dap_chain_datum_tx_receipt_t * l_receipt = dap_chain_datum_tx_receipt_create(
+                    a_srv->uid, a_price->units_uid, a_price->units, a_price->value_datoshi, a_ext, a_ext_size);
+    size_t l_receipt_size = l_receipt->size; // nested receipt plus 8 bits for type
+
+    // Sign with our wallet
+    l_receipt_size = dap_chain_datum_tx_receipt_sign_add(&l_receipt,l_receipt_size , dap_chain_wallet_get_key( a_price->wallet,0) );
+
+    a_usage->receipt = l_receipt;
+    a_usage->receipt_size = l_receipt_size;
+    a_usage->wallet = a_price->wallet;
+
+    return  l_receipt;
+}
+
+
diff --git a/libdap-chain-net-srv/dap_chain_net_srv.h b/libdap-chain-net-srv/dap_chain_net_srv.h
new file mode 100755
index 0000000000000000000000000000000000000000..f12364a226a910d30a82712af5df9da7eaac2d4f
--- /dev/null
+++ b/libdap-chain-net-srv/dap_chain_net_srv.h
@@ -0,0 +1,98 @@
+/*
+* Authors:
+* Dmitriy Gerasimov <naeper@demlabs.net>
+* Aleksandr Lysikov <alexander.lysikov@demlabs.net>
+* Cellframe       https://cellframe.net
+* DeM Labs Inc.   https://demlabs.net
+* Copyright  (c) 2017-2019
+* All rights reserved.
+
+This file is part of CellFrame SDK the open source project
+
+CellFrame SDK is free software: you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation, either version 3 of the License, or
+(at your option) any later version.
+
+CellFrame SDK is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with any CellFrame SDK based project.  If not, see <http://www.gnu.org/licenses/>.
+*/
+#pragma once
+
+#include "dap_config.h"
+#include "dap_chain_net_srv_common.h"
+#include "dap_chain_net_srv_client.h"
+#include "dap_chain_net_srv_stream_session.h"
+
+typedef struct dap_chain_net_srv dap_chain_net_srv_t;
+
+typedef void (*dap_chain_net_srv_callback_t)(dap_chain_net_srv_t *, dap_chain_net_srv_client_t *);
+typedef int (*dap_chain_net_srv_callback_data_t)(dap_chain_net_srv_t *, uint32_t, dap_chain_net_srv_client_t *, const void *, size_t );
+typedef void (*dap_chain_net_srv_callback_ch_t)(dap_chain_net_srv_t *, dap_stream_ch_t *);
+
+typedef struct dap_chain_net_srv
+{
+    dap_chain_net_srv_uid_t uid; // Unique ID for service.
+    dap_chain_net_srv_abstract_t srv_common;
+    dap_chain_net_srv_price_t *pricelist;
+    dap_chain_callback_trafic_t callback_trafic;
+
+    // Request for usage
+    dap_chain_net_srv_callback_data_t callback_requested;
+
+    // Receipt first sign successfull
+    dap_chain_net_srv_callback_data_t callback_receipt_first_success;
+
+    // Response error
+    dap_chain_net_srv_callback_data_t callback_response_error;
+
+    // Receipt next sign succesfull
+    dap_chain_net_srv_callback_data_t callback_receipt_next_success;
+
+    // Stream CH callbacks - channed opened,ready for read, ready for write and closed
+    dap_chain_net_srv_callback_ch_t      callback_stream_ch_opened;
+    dap_chain_net_srv_callback_data_t callback_stream_ch_read;
+    dap_chain_net_srv_callback_ch_t callback_stream_ch_write;
+    dap_chain_net_srv_callback_ch_t      callback_stream_ch_closed;
+
+    // Pointer to inheritor object
+    void * _inhertor;
+} dap_chain_net_srv_t;
+typedef void (*dap_chain_net_srv_callback_new_t)(dap_chain_net_srv_t *, dap_config_t *);
+
+
+int dap_chain_net_srv_init(dap_config_t * a_cfg);
+void dap_chain_net_srv_deinit(void);
+dap_chain_net_srv_t* dap_chain_net_srv_add(dap_chain_net_srv_uid_t a_uid,dap_chain_net_srv_callback_data_t a_callback_requested,
+                                           dap_chain_net_srv_callback_data_t a_callback_response_success,
+                                           dap_chain_net_srv_callback_data_t a_callback_response_error,
+                                           dap_chain_net_srv_callback_data_t a_callback_receipt_next_success
+                                           );
+
+int dap_chain_net_srv_set_ch_callbacks(dap_chain_net_srv_uid_t a_uid,
+                                       dap_chain_net_srv_callback_ch_t a_callback_stream_ch_opened,
+                                       dap_chain_net_srv_callback_data_t a_callback_stream_ch_read,
+                                       dap_chain_net_srv_callback_ch_t a_callback_stream_ch_write,
+                                       dap_chain_net_srv_callback_ch_t a_callback_stream_ch_closed
+                                       );
+
+void dap_chain_net_srv_del(dap_chain_net_srv_t * a_srv);
+void dap_chain_net_srv_del_all(void);
+
+void dap_chain_net_srv_call_write_all(dap_stream_ch_t * a_client);
+void dap_chain_net_srv_call_closed_all(dap_stream_ch_t * a_client);
+void dap_chain_net_srv_call_opened_all(dap_stream_ch_t * a_client);
+
+dap_chain_net_srv_t * dap_chain_net_srv_get(dap_chain_net_srv_uid_t a_uid);
+size_t dap_chain_net_srv_count(void);
+const dap_chain_net_srv_uid_t * dap_chain_net_srv_list(void);
+dap_chain_datum_tx_receipt_t * dap_chain_net_srv_issue_receipt(dap_chain_net_srv_t *a_srv,
+                dap_chain_net_srv_usage_t * a_usage,
+                dap_chain_net_srv_price_t * a_price, const void * a_ext, size_t a_ext_size
+                );
+
diff --git a/libdap-chain-net-srv/dap_chain_net_srv_client.c b/libdap-chain-net-srv/dap_chain_net_srv_client.c
new file mode 100644
index 0000000000000000000000000000000000000000..35c69cbf8dcc240f7984acbde84ed96794debc5a
--- /dev/null
+++ b/libdap-chain-net-srv/dap_chain_net_srv_client.c
@@ -0,0 +1,30 @@
+/*
+* Authors:
+* Dmitriy Gerasimov <naeper@demlabs.net>
+* Cellframe       https://cellframe.net
+* DeM Labs Inc.   https://demlabs.net
+* Copyright  (c) 2017-2019
+* All rights reserved.
+
+This file is part of CellFrame SDK the open source project
+
+CellFrame SDK is free software: you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation, either version 3 of the License, or
+(at your option) any later version.
+
+CellFrame SDK is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with any CellFrame SDK based project.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+#include "dap_common.h"
+
+#include "dap_chain_net_srv_client.h"
+
+
+#define LOG_TAG "dap_chain_net_srv_client"
diff --git a/libdap-chain-net-srv/dap_chain_net_srv_client.h b/libdap-chain-net-srv/dap_chain_net_srv_client.h
new file mode 100644
index 0000000000000000000000000000000000000000..d385f29c3d01aa4465bbb7448956a6667af758b2
--- /dev/null
+++ b/libdap-chain-net-srv/dap_chain_net_srv_client.h
@@ -0,0 +1,38 @@
+/*
+* Authors:
+* Dmitriy Gerasimov <naeper@demlabs.net>
+* Cellframe       https://cellframe.net
+* DeM Labs Inc.   https://demlabs.net
+* Copyright  (c) 2017-2019
+* All rights reserved.
+
+This file is part of CellFrame SDK the open source project
+
+CellFrame SDK is free software: you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation, either version 3 of the License, or
+(at your option) any later version.
+
+CellFrame SDK is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with any CellFrame SDK based project.  If not, see <http://www.gnu.org/licenses/>.
+*/
+#pragma once
+
+#include "dap_chain_net_srv_common.h"
+#include "dap_chain_net_remote.h"
+
+typedef struct dap_chain_net_srv_client
+{
+    time_t ts_created;
+    dap_stream_ch_t *ch; // For direct connections
+    dap_chain_net_remote_t *net_remote; // For remotes
+    uint64_t bytes_received;
+    uint64_t bytes_sent;
+    struct dap_chain_net_srv_client *prev;
+    struct dap_chain_net_srv_client *next;
+} dap_chain_net_srv_client_t;
diff --git a/libdap-chain-net-srv/dap_chain_net_srv_common.c b/libdap-chain-net-srv/dap_chain_net_srv_common.c
new file mode 100755
index 0000000000000000000000000000000000000000..494923184e111d6fe4ed0b24387fdac6b108f073
--- /dev/null
+++ b/libdap-chain-net-srv/dap_chain_net_srv_common.c
@@ -0,0 +1,48 @@
+/*
+ * Authors:
+ * Dmitriy A. Gearasimov <gerasimov.dmitriy@demlabs.net>
+ * Aleksandr Lysikov <alexander.lysikov@demlabs.net>
+ * DeM Labs Inc.   https://demlabs.net
+ * Kelvin Project https://github.com/kelvinblockchain
+ * Copyright  (c) 2019
+ * All rights reserved.
+
+ This file is part of DAP (Deus Applications Prototypes) the open source project
+
+ DAP (Deus Applicaions Prototypes) is free software: you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation, either version 3 of the License, or
+ (at your option) any later version.
+
+ DAP is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with any DAP based project.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include <stdlib.h>
+#include <stdio.h>
+#include <time.h>
+#include <stdlib.h>
+#include <stddef.h>
+#include <stdint.h>
+
+#ifdef WIN32
+#include <winsock2.h>
+#include <windows.h>
+#include <mswsock.h>
+#include <ws2tcpip.h>
+#include <io.h>
+#endif
+
+#include <pthread.h>
+
+#include "dap_strfuncs.h"
+#include "rand/dap_rand.h"
+#include "dap_chain_datum_tx_items.h"
+#include "dap_stream.h"
+#include "dap_chain_net_srv_common.h"
+
diff --git a/libdap-chain-net-srv/dap_chain_net_srv_common.h b/libdap-chain-net-srv/dap_chain_net_srv_common.h
new file mode 100755
index 0000000000000000000000000000000000000000..94886a340cb6faf161b449ece43fca0587aa2319
--- /dev/null
+++ b/libdap-chain-net-srv/dap_chain_net_srv_common.h
@@ -0,0 +1,178 @@
+/*
+ * Authors:
+ * Aleksandr Lysikov <alexander.lysikov@demlabs.net>
+ * DeM Labs Inc.   https://demlabs.net
+ * Kelvin Project https://github.com/kelvinblockchain
+ * Copyright  (c) 2019
+ * All rights reserved.
+
+ This file is part of DAP (Deus Applications Prototypes) the open source project
+
+ DAP (Deus Applicaions Prototypes) is free software: you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation, either version 3 of the License, or
+ (at your option) any later version.
+
+ DAP is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with any DAP based project.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#pragma once
+#include <stdint.h>
+#include <stdbool.h>
+#include "dap_common.h"
+#include "dap_math_ops.h"
+#include "dap_server.h"
+#include "dap_stream_ch.h"
+#include "dap_chain_common.h"
+#include "dap_chain_ledger.h"
+#include "dap_chain_net.h"
+#include "dap_chain_wallet.h"
+
+
+
+//Units of service
+
+
+
+//Service direction
+typedef enum dap_chain_net_srv_order_direction{
+    SERV_DIR_BUY = 1,
+    SERV_DIR_SELL = 2,
+    SERV_DIR_UNDEFINED = 0
+} dap_chain_net_srv_order_direction_t;
+
+
+
+
+typedef struct dap_chain_net_srv_abstract
+{
+    uint8_t class; //Class of service (once or permanent)
+    dap_chain_net_srv_uid_t type_id; //Type of service
+    union {
+        struct {
+            int bandwith;
+            int abuse_resistant;
+            size_t limit_bytes;
+        } vpn;
+        /*struct {
+         int value;
+         } another_srv;*/
+    } proposal_params;
+
+    //size_t pub_key_data_size;
+    //void * pub_key_data;
+
+    uint64_t price; //  service price, for SERV_CLASS_ONCE ONCE for the whole service, for SERV_CLASS_PERMANENT  for one unit.
+    uint8_t price_units; // Unit of service (seconds, megabytes, etc.) Only for SERV_CLASS_PERMANENT
+    char decription[128];
+}DAP_ALIGN_PACKED dap_chain_net_srv_abstract_t;
+
+typedef void (*dap_chain_callback_trafic_t)(dap_client_remote_t *, dap_stream_ch_t *);
+
+typedef struct dap_chain_net_srv_price
+{
+    dap_chain_wallet_t * wallet;
+    char * net_name;
+    dap_chain_net_t * net;
+    uint64_t value_datoshi;
+    double value_coins;
+    char token[DAP_CHAIN_TICKER_SIZE_MAX];
+    uint64_t units;
+    dap_chain_net_srv_price_unit_uid_t units_uid;
+    struct dap_chain_net_srv_price * next;
+    struct dap_chain_net_srv_price * prev;
+} dap_chain_net_srv_price_t;
+
+
+// Ch pkt types
+#define DAP_STREAM_CH_CHAIN_NET_SRV_PKT_TYPE_REQUEST                       0x01
+#define DAP_STREAM_CH_CHAIN_NET_SRV_PKT_TYPE_SIGN_REQUEST                  0x10
+#define DAP_STREAM_CH_CHAIN_NET_SRV_PKT_TYPE_SIGN_RESPONSE                 0x11
+#define DAP_STREAM_CH_CHAIN_NET_SRV_PKT_TYPE_NOTIFY_STOPPED                0x20
+#define DAP_STREAM_CH_CHAIN_NET_SRV_PKT_TYPE_DATA                          0x30
+#define DAP_STREAM_CH_CHAIN_NET_SRV_PKT_TYPE_RESPONSE_SUCCESS              0xf0
+#define DAP_STREAM_CH_CHAIN_NET_SRV_PKT_TYPE_RESPONSE_ERROR                0xff
+
+#define DAP_STREAM_CH_CHAIN_NET_SRV_PKT_TYPE_RESPONSE_ERROR_CODE_UNDEFINED                  0x00000000
+#define DAP_STREAM_CH_CHAIN_NET_SRV_PKT_TYPE_RESPONSE_ERROR_CODE_SERVICE_NOT_FOUND          0x00000100
+#define DAP_STREAM_CH_CHAIN_NET_SRV_PKT_TYPE_RESPONSE_ERROR_CODE_SERVICE_CH_NOT_FOUND       0x00000101
+#define DAP_STREAM_CH_CHAIN_NET_SRV_PKT_TYPE_RESPONSE_ERROR_CODE_NETWORK_NOT_FOUND          0x00000200
+#define DAP_STREAM_CH_CHAIN_NET_SRV_PKT_TYPE_RESPONSE_ERROR_CODE_NETWORK_NO_LEDGER          0x00000201
+#define DAP_STREAM_CH_CHAIN_NET_SRV_PKT_TYPE_RESPONSE_ERROR_CODE_USAGE_CANT_ADD             0x00000300
+#define DAP_STREAM_CH_CHAIN_NET_SRV_PKT_TYPE_RESPONSE_ERROR_CODE_TX_COND_NOT_FOUND          0x00000400
+#define DAP_STREAM_CH_CHAIN_NET_SRV_PKT_TYPE_RESPONSE_ERROR_CODE_TX_COND_NO_COND_OUT        0x00000401
+#define DAP_STREAM_CH_CHAIN_NET_SRV_PKT_TYPE_RESPONSE_ERROR_CODE_TX_COND_NOT_ENOUGH         0x00000402
+#define DAP_STREAM_CH_CHAIN_NET_SRV_PKT_TYPE_RESPONSE_ERROR_CODE_TX_COND_NOT_ACCEPT_TOKEN   0x00000403
+#define DAP_STREAM_CH_CHAIN_NET_SRV_PKT_TYPE_RESPONSE_ERROR_CODE_TX_COND_WRONG_SRV_UID      0x00000404
+#define DAP_STREAM_CH_CHAIN_NET_SRV_PKT_TYPE_RESPONSE_ERROR_CODE_TX_COND_WRONG_SIZE         0x00000405
+#define DAP_STREAM_CH_CHAIN_NET_SRV_PKT_TYPE_RESPONSE_ERROR_CODE_RECEIPT_CANT_FIND          0x00000500
+#define DAP_STREAM_CH_CHAIN_NET_SRV_PKT_TYPE_RESPONSE_ERROR_CODE_RECEIPT_NO_SIGN            0x00000501
+#define DAP_STREAM_CH_CHAIN_NET_SRV_PKT_TYPE_RESPONSE_ERROR_CODE_RECEIPT_WRONG_PKEY_HASH    0x00000502
+#define DAP_STREAM_CH_CHAIN_NET_SRV_PKT_TYPE_RESPONSE_ERROR_CODE_PRICE_NOT_FOUND            0x00000600
+
+#define DAP_STREAM_CH_CHAIN_NET_SRV_PKT_TYPE_RESPONSE_ERROR_CODE_UNKNOWN                    0xffffffff
+// TYPE_REQUEST
+typedef struct dap_stream_ch_chain_net_srv_pkt_request_hdr{
+    dap_chain_net_id_t net_id;// Network id wheither to request
+    dap_chain_hash_fast_t tx_cond; // Conditioned transaction with paymemt for
+    dap_chain_net_srv_uid_t srv_uid;
+    char token[DAP_CHAIN_TICKER_SIZE_MAX];
+} DAP_ALIGN_PACKED dap_stream_ch_chain_net_srv_pkt_request_hdr_t;
+
+typedef struct dap_stream_ch_chain_net_srv_pkt_request{
+    dap_stream_ch_chain_net_srv_pkt_request_hdr_t hdr;
+    uint8_t data[];
+} DAP_ALIGN_PACKED dap_stream_ch_chain_net_srv_pkt_request_t;
+
+// Custom service data packet
+typedef struct dap_stream_ch_chain_net_srv_pkt_data_hdr{
+    uint8_t version;
+    uint8_t offset[3];
+    uint32_t usage_id;
+    dap_chain_net_srv_uid_t srv_uid;
+} DAP_ALIGN_PACKED dap_stream_ch_chain_net_srv_pkt_data_hdr_t;
+
+typedef struct dap_stream_ch_chain_net_srv_pkt_data{
+    dap_stream_ch_chain_net_srv_pkt_data_hdr_t hdr;
+    uint8_t data[];
+} DAP_ALIGN_PACKED dap_stream_ch_chain_net_srv_pkt_data_t;
+
+
+typedef struct dap_stream_ch_chain_net_srv_pkt_success_hdr{
+    uint32_t usage_id;
+    dap_chain_net_id_t net_id;
+    dap_chain_net_srv_uid_t srv_uid;
+} DAP_ALIGN_PACKED dap_stream_ch_chain_net_srv_pkt_success_hdr_t;
+
+typedef struct dap_stream_ch_chain_net_srv_pkt_success{
+    dap_stream_ch_chain_net_srv_pkt_success_hdr_t hdr;
+    uint8_t custom_data[];
+} DAP_ALIGN_PACKED dap_stream_ch_chain_net_srv_pkt_success_t;
+
+// TYPE_RESPONSE_ERROR
+typedef struct dap_stream_ch_chain_net_srv_pkt_error{
+    dap_chain_net_id_t net_id;
+    dap_chain_net_srv_uid_t srv_uid;
+    uint32_t usage_id;
+    uint32_t code; // error code
+} DAP_ALIGN_PACKED dap_stream_ch_chain_net_srv_pkt_error_t;
+
+
+
+
+DAP_STATIC_INLINE const char * dap_chain_net_srv_price_unit_uid_to_str( dap_chain_net_srv_price_unit_uid_t a_uid )
+{
+    switch ( a_uid.enm) {
+        case SERV_UNIT_UNDEFINED: return "BYTE";
+        case SERV_UNIT_MB: return "MEGABYTE";
+        case SERV_UNIT_SEC: return "SECOND";
+        case SERV_UNIT_DAY: return  "DAY";
+        default: return "UNKNOWN";
+    }
+}
diff --git a/libdap-chain-net-srv/dap_chain_net_srv_order.c b/libdap-chain-net-srv/dap_chain_net_srv_order.c
new file mode 100644
index 0000000000000000000000000000000000000000..104424e56a1842fd67c42f38aa0cd2ed3c938951
--- /dev/null
+++ b/libdap-chain-net-srv/dap_chain_net_srv_order.c
@@ -0,0 +1,425 @@
+/*
+ * Authors:
+ * Dmitrii Gerasimov <naeper@demlabs.net>
+ * DeM Labs Inc.   https://demlabs.net
+ * Cellframe https://cellframe.net
+ * Copyright  (c) 2017-2019
+ * All rights reserved.
+
+ This file is part of DAP (Deus Applications Prototypes) the open source project
+
+ DAP (Deus Applicaions Prototypes) is free software: you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation, either version 3 of the License, or
+ (at your option) any later version.
+
+ DAP is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with any DAP based project.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include "dap_chain_net_srv_order.h"
+
+#include "dap_hash.h"
+#include "dap_chain_global_db.h"
+
+#define LOG_TAG "dap_chain_net_srv_order"
+
+char *s_server_continents[]={
+        "None",
+        "Africa",
+        "Europe",
+        "North America",
+        "South America",
+        "Southeast Asia",
+        "Near East",
+ };
+
+/**
+ * @brief dap_chain_net_srv_order_init
+ * @return
+ */
+int dap_chain_net_srv_order_init(void)
+{
+
+    return 0;
+}
+
+/**
+ * @brief dap_chain_net_srv_order_deinit
+ */
+void dap_chain_net_srv_order_deinit()
+{
+
+}
+
+size_t dap_chain_net_srv_order_get_size(dap_chain_net_srv_order_t *a_order)
+{
+    return a_order ? sizeof(dap_chain_net_srv_order_t) + a_order->ext_size : 0;
+}
+
+/**
+ * @brief dap_chain_net_srv_order_get_region_continent
+ * @param a_continent_num [in]
+ * @param a_region [in]
+ */
+bool dap_chain_net_srv_order_set_continent_region(dap_chain_net_srv_order_t **a_order, uint8_t a_continent_num, const char *a_region)
+{
+    dap_chain_net_srv_order_t *l_order = *a_order;
+    if(!l_order || (!a_continent_num && !a_region))
+        return false;
+    uint8_t l_continent_num_prev = 0;
+    char *l_region_prev = NULL;
+    dap_chain_net_srv_order_get_continent_region(*a_order, &l_continent_num_prev, &l_region_prev);
+    uint32_t l_ext_size = 1 + sizeof(uint8_t);
+    if(a_region)
+        l_ext_size += strlen(a_region) + 1;
+    else if(l_region_prev)
+        l_ext_size += strlen(l_region_prev) + 1;
+
+    l_order = DAP_REALLOC(l_order, sizeof(dap_chain_net_srv_order_t) + l_ext_size);
+    l_order->ext[0] =0x52;
+    if(a_continent_num > 0)
+        memcpy(l_order->ext + 1, &a_continent_num, sizeof(uint8_t));
+    else
+        memcpy(l_order->ext + 1, &l_continent_num_prev, sizeof(uint8_t));
+    if(a_region)
+        memcpy(l_order->ext + 1 + sizeof(uint8_t), a_region, strlen(a_region) + 1);
+    else if(l_region_prev)
+        memcpy(l_order->ext + 1 + sizeof(uint8_t), l_region_prev, strlen(l_region_prev) + 1);
+    //dap_sprintf(l_order->ext, "\52%d-%s", a_continent_num, a_region);
+    l_order->ext_size = l_ext_size;
+    *a_order = l_order;
+    DAP_DELETE(l_region_prev);
+    return true;
+}
+
+/**
+ * @brief dap_chain_net_srv_order_get_region_continent
+ * @param a_continent_num [out]
+ * @param a_region [out]
+ */
+bool dap_chain_net_srv_order_get_continent_region(dap_chain_net_srv_order_t *a_order, uint8_t *a_continent_num, char **a_region)
+{
+    if(!a_order || !a_order->ext_size || !a_order->ext || a_order->ext[0]!=0x52)
+        return false;
+    if(a_continent_num) {
+       if((uint8_t)a_order->ext[1]!=0xff)
+           memcpy(a_continent_num, a_order->ext + 1, sizeof(uint8_t));
+        else
+           a_continent_num = 0;
+    }else
+        a_continent_num = 0;
+    if(a_region) {
+        size_t l_size = a_order->ext_size - sizeof(uint8_t) - 1;
+        if(l_size > 0) {
+            *a_region = DAP_NEW_SIZE(char, l_size);
+            memcpy(*a_region, a_order->ext + 1 + sizeof(uint8_t), l_size);
+        }
+        else
+            *a_region = NULL;
+    }
+    return true;
+}
+
+
+/**
+ * @brief dap_chain_net_srv_order_continents_count
+ */
+size_t dap_chain_net_srv_order_continents_count(void)
+{
+    size_t l_count = sizeof(s_server_continents) / sizeof(char*);
+    return l_count;
+}
+
+/**
+ * @brief dap_chain_net_srv_order_get_continent_str
+ */
+const char* dap_chain_net_srv_order_continent_to_str(int8_t a_num)
+{
+    int8_t l_count = dap_chain_net_srv_order_continents_count();
+    if(a_num >= l_count)
+        return NULL;
+    return s_server_continents[a_num];
+}
+
+/**
+ * @brief dap_chain_net_srv_order_get_continent_num
+ */
+int8_t dap_chain_net_srv_order_continent_to_num(const char *a_continent_str)
+{
+    int8_t l_count = dap_chain_net_srv_order_continents_count();
+    char *l_continent_str = dap_strup(a_continent_str, -1);
+    for(int8_t i = 1; i < l_count; i++) {
+        char *l_server_continents = dap_strup(s_server_continents[i], -1);
+        if(!dap_strcmp(l_continent_str, l_server_continents)) {
+            DAP_DELETE(l_server_continents);
+            DAP_DELETE(l_continent_str);
+            return i;
+        }
+        DAP_DELETE(l_server_continents);
+    }
+    DAP_DELETE(l_continent_str);
+    return -1;
+}
+
+char* dap_chain_net_srv_order_create(
+        dap_chain_net_t * a_net,
+        dap_chain_net_srv_order_direction_t a_direction,
+        dap_chain_net_srv_uid_t a_srv_uid, // Service UID
+        dap_chain_node_addr_t a_node_addr, // Node address that servs the order (if present)
+        dap_chain_hash_fast_t a_tx_cond_hash, // Hash index of conditioned transaction attached with order
+        uint64_t a_price, //  service price in datoshi, for SERV_CLASS_ONCE ONCE for the whole service, for SERV_CLASS_PERMANENT  for one unit.
+        dap_chain_net_srv_price_unit_uid_t a_price_unit, // Unit of service (seconds, megabytes, etc.) Only for SERV_CLASS_PERMANENT
+        char a_price_ticker[DAP_CHAIN_TICKER_SIZE_MAX],
+        dap_chain_time_t a_expires, // TS when the service expires
+        const char *a_ext,
+        const char *a_region,
+        int8_t a_continent_num
+        )
+{
+    if (a_net) {
+        dap_chain_net_srv_order_t *l_order = DAP_NEW_Z(dap_chain_net_srv_order_t);
+        dap_chain_hash_fast_t* l_order_hash = DAP_NEW_Z(dap_chain_hash_fast_t);
+        l_order->version = 1;
+        l_order->srv_uid = a_srv_uid;
+        l_order->direction = a_direction;
+        l_order->ts_created = (dap_chain_time_t) time(NULL);
+
+        if(a_ext)
+            strncpy(l_order->ext, a_ext, strlen(l_order->ext) + 1);
+        else
+            dap_chain_net_srv_order_set_continent_region(&l_order, a_continent_num, a_region);
+
+        if ( a_node_addr.uint64)
+            l_order->node_addr.uint64 = a_node_addr.uint64;
+
+        memcpy(&l_order->tx_cond_hash, &a_tx_cond_hash, DAP_CHAIN_HASH_FAST_SIZE);
+        l_order->price = a_price;
+        l_order->price_unit.uint32 = a_price_unit.uint32;
+
+        if ( a_price_ticker)
+            strncpy(l_order->price_ticker, a_price_ticker,sizeof(l_order->price_ticker)-1);
+
+        size_t l_order_size = dap_chain_net_srv_order_get_size(l_order);
+        dap_hash_fast( l_order, l_order_size, l_order_hash );
+        char * l_order_hash_str = dap_chain_hash_fast_to_str_new( l_order_hash );
+        char * l_gdb_group_str = dap_chain_net_srv_order_get_gdb_group( a_net);
+        if ( !dap_chain_global_db_gr_set( dap_strdup(l_order_hash_str), l_order, l_order_size, l_gdb_group_str ) ){
+            DAP_DELETE( l_order );
+            DAP_DELETE( l_order_hash );
+            DAP_DELETE( l_order_hash_str );
+            DAP_DELETE( l_gdb_group_str );
+            return NULL;
+        }
+        DAP_DELETE( l_order_hash );
+        //DAP_DELETE(l_order_hash_str );
+        DAP_DELETE( l_gdb_group_str );
+        return  l_order_hash_str;
+    }else
+        return NULL;
+}
+
+/**
+ * @brief dap_chain_net_srv_order_update
+ * @param a_net
+ * @param a_order
+ * @return
+ */
+int dap_chain_net_srv_order_save(dap_chain_net_t * a_net, dap_chain_net_srv_order_t *a_order)
+{
+    if (!a_net || !a_order)
+        return -1;
+
+    dap_chain_hash_fast_t l_order_hash;
+    size_t l_order_size = dap_chain_net_srv_order_get_size(a_order);
+    dap_hash_fast( a_order, l_order_size, &l_order_hash );
+    char * l_order_hash_str = dap_chain_hash_fast_to_str_new(&l_order_hash);
+    char * l_gdb_group_str = dap_chain_net_srv_order_get_gdb_group( a_net);
+    if ( !dap_chain_global_db_gr_set(l_order_hash_str, a_order, l_order_size, l_gdb_group_str ) ){
+        DAP_DELETE( l_gdb_group_str );
+        return -1;
+    }
+    DAP_DELETE( l_gdb_group_str );
+    return 0;
+}
+
+/**
+ * @brief dap_chain_net_srv_order_find_by_hash_str
+ * @param a_net
+ * @param a_hash_str
+ * @return
+ */
+dap_chain_net_srv_order_t * dap_chain_net_srv_order_find_by_hash_str(dap_chain_net_t * a_net, const char * a_hash_str)
+{
+    dap_chain_net_srv_order_t * l_order = NULL;
+    if ( a_net && a_hash_str ){
+        char * l_gdb_group_str = dap_chain_net_srv_order_get_gdb_group( a_net);
+        size_t l_order_size =0;
+        l_order = (dap_chain_net_srv_order_t *) dap_chain_global_db_gr_get(a_hash_str, &l_order_size, l_gdb_group_str );
+        // check order size
+        if(l_order_size != dap_chain_net_srv_order_get_size(l_order)) {
+            log_it( L_ERROR, "Found wrong size order");
+            DAP_DELETE( l_order );
+            DAP_DELETE( l_gdb_group_str );
+            return NULL;
+        }
+        DAP_DELETE( l_gdb_group_str );
+    }
+    return l_order;
+}
+
+/**
+ * @brief dap_chain_net_srv_order_find_all_by
+ * @param a_net
+ * @param a_srv_uid
+ * @param a_srv_class
+ * @param a_price_unit
+ * @param a_price_min
+ * @param a_price_max
+ * @param a_output_orders
+ * @param a_output_orders_count
+ * @return
+ */
+int dap_chain_net_srv_order_find_all_by(dap_chain_net_t * a_net,const dap_chain_net_srv_order_direction_t a_direction,
+                                        const dap_chain_net_srv_uid_t a_srv_uid,
+                                        const dap_chain_net_srv_price_unit_uid_t a_price_unit,const char a_price_ticker[DAP_CHAIN_TICKER_SIZE_MAX],
+                                        const uint64_t a_price_min, const uint64_t a_price_max,
+                                        dap_chain_net_srv_order_t ** a_output_orders, size_t * a_output_orders_count)
+{
+    if ( a_net && a_output_orders && a_output_orders_count ){
+        char * l_gdb_group_str = dap_chain_net_srv_order_get_gdb_group( a_net);
+        size_t l_orders_count = 0;
+        dap_global_db_obj_t * l_orders = dap_chain_global_db_gr_load(l_gdb_group_str,&l_orders_count);
+        log_it( L_DEBUG ,"Loaded %zd orders", l_orders_count);
+        bool l_order_pass_first=true;
+        size_t l_order_passed_index = 0;
+        size_t l_orders_size = 0;
+lb_order_pass:
+        l_order_passed_index = 0;
+        l_orders_size = 0;
+        for (size_t i=0; i< l_orders_count; i++){
+            dap_chain_net_srv_order_t * l_order = (dap_chain_net_srv_order_t *) l_orders[i].value;
+            // Check direction
+            if (a_direction != SERV_DIR_UNDEFINED )
+                if ( l_order->direction != a_direction )
+                    continue;
+
+            // Check srv uid
+            if ( a_srv_uid.uint64 )
+                if ( l_order->srv_uid.uint64 != a_srv_uid.uint64 )
+                    continue;
+            // check price unit
+            if ( a_price_unit.uint32 )
+                if ( a_price_unit.uint32 != l_order->price_unit.uint32 )
+                    continue;
+            // Check price minimum
+            if ( a_price_min )
+                if ( l_order->price < a_price_min )
+                    continue;
+            // Check price maximum
+            if ( a_price_max )
+                if ( l_order->price > a_price_max )
+                    continue;
+            // Check ticker
+            if ( a_price_ticker )
+                if ( strcmp( l_order->price_ticker, a_price_ticker) != 0 )
+                    continue;
+
+            if( !l_order_pass_first ){
+                size_t l_order_size = dap_chain_net_srv_order_get_size(l_order);
+                memcpy((char*)*a_output_orders + l_orders_size, l_order, l_order_size);
+                l_orders_size += l_order_size;
+            }
+            else
+                // calc size of all orders
+                l_orders_size += dap_chain_net_srv_order_get_size(l_order);
+            l_order_passed_index++;
+
+        }
+        // Dirty goto usage ho ho ho
+        if (l_order_pass_first) {
+            l_order_pass_first = false;
+            *a_output_orders_count = l_order_passed_index;
+            *a_output_orders = DAP_NEW_Z_SIZE(dap_chain_net_srv_order_t, l_orders_size);
+            goto lb_order_pass;
+        }
+        // If we here - its the second pass through
+
+        dap_chain_global_db_objs_delete(l_orders, l_orders_count);
+        DAP_DELETE( l_gdb_group_str);
+        return 0;
+    }
+    return -1;
+}
+
+/**
+ * @brief dap_chain_net_srv_order_delete_by_hash_str
+ * @param a_net
+ * @param a_hash_str
+ * @return
+ */
+int dap_chain_net_srv_order_delete_by_hash_str(dap_chain_net_t * a_net, const char * a_hash_str )
+{
+    int ret = -2;
+    if ( a_net && a_hash_str  ){
+        char * l_gdb_group_str = dap_chain_net_srv_order_get_gdb_group( a_net);
+        char * l_hash_str = strdup( a_hash_str );
+        ret = dap_chain_global_db_gr_del( l_hash_str, l_gdb_group_str ) ? 0 : -1;
+        DAP_DELETE( l_gdb_group_str );
+    }
+    return ret;
+}
+
+/**
+ * @brief dap_chain_net_srv_order_dump_to_string
+ * @param a_orders
+ * @param a_str_out
+ */
+void dap_chain_net_srv_order_dump_to_string(dap_chain_net_srv_order_t *a_order,dap_string_t * a_str_out)
+{
+    if (a_order && a_str_out ){
+        dap_chain_hash_fast_t l_hash;
+        char l_hash_str[DAP_CHAIN_HASH_FAST_SIZE * 2 + 4];
+        dap_hash_fast(a_order, dap_chain_net_srv_order_get_size(a_order), &l_hash);
+        dap_chain_hash_fast_to_str(&l_hash,l_hash_str,sizeof(l_hash_str)-1);
+        dap_string_append_printf(a_str_out, "== Order %s ==\n", l_hash_str);
+        dap_string_append_printf(a_str_out, "  version:          %u\n", a_order->version );
+
+        switch ( a_order->direction) {
+            case SERV_DIR_UNDEFINED: dap_string_append_printf(a_str_out, "  direction:        SERV_DIR_UNDEFINED\n" ); break;
+            case SERV_DIR_SELL: dap_string_append_printf(a_str_out, "  direction:        SERV_DIR_SELL\n" ); break;
+            case SERV_DIR_BUY: dap_string_append_printf(a_str_out, "  direction:        SERV_DIR_BUY\n" ); break;
+        }
+
+        dap_string_append_printf(a_str_out, "  srv_uid:          0x%016llX\n", a_order->srv_uid.uint64 );
+        dap_string_append_printf(a_str_out, "  price:           \u00a0%.7Lf (%llu)\n", dap_chain_balance_to_coins(a_order->price) , a_order->price);
+        if( a_order->price_unit.uint32 )
+            dap_string_append_printf(a_str_out, "  price_unit:       %s\n", dap_chain_net_srv_price_unit_uid_to_str(a_order->price_unit) );
+        if ( a_order->node_addr.uint64)
+            dap_string_append_printf(a_str_out, "  node_addr:        "NODE_ADDR_FP_STR"\n", NODE_ADDR_FP_ARGS_S(a_order->node_addr) );
+
+        char *l_region = NULL;
+        uint8_t l_continent_num = 0;
+        const char *l_continent_str = NULL;
+        if(dap_chain_net_srv_order_get_continent_region(a_order, &l_continent_num, &l_region))
+            l_continent_str = dap_chain_net_srv_order_continent_to_str(l_continent_num);
+        dap_string_append_printf(a_str_out, "  node_location:    %s - %s\n", l_continent_str ? l_continent_str : "None" , l_region ? l_region : "None");
+        DAP_DELETE(l_region);
+
+        dap_chain_hash_fast_to_str(&a_order->tx_cond_hash,l_hash_str, sizeof(l_hash_str)-1);
+        dap_string_append_printf(a_str_out, "  tx_cond_hash:     %s\n", l_hash_str );
+        char *l_ext_out = a_order->ext_size ? DAP_NEW_Z_SIZE(char, a_order->ext_size * 2 + 1) : NULL;
+        dap_bin2hex(l_ext_out, a_order->ext, a_order->ext_size);
+        if(l_ext_out)
+            dap_string_append_printf(a_str_out, "  ext:              0x%s\n", l_ext_out);
+        else
+            dap_string_append_printf(a_str_out, "  ext:              0x0\n");
+
+        DAP_DELETE(l_ext_out);
+    }
+}
diff --git a/libdap-chain-net-srv/dap_chain_net_srv_order.h b/libdap-chain-net-srv/dap_chain_net_srv_order.h
new file mode 100644
index 0000000000000000000000000000000000000000..3aa88fd18145045a68c158a1edd97bd760588f22
--- /dev/null
+++ b/libdap-chain-net-srv/dap_chain_net_srv_order.h
@@ -0,0 +1,123 @@
+/*
+* Authors:
+* Dmitriy Gerasimov <naeper@demlabs.net>
+* Cellframe       https://cellframe.net
+* DeM Labs Inc.   https://demlabs.net
+* Copyright  (c) 2017-2019
+* All rights reserved.
+
+This file is part of CellFrame SDK the open source project
+
+CellFrame SDK is free software: you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation, either version 3 of the License, or
+(at your option) any later version.
+
+CellFrame SDK is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with any CellFrame SDK based project.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+#pragma once
+#include "dap_common.h"
+#include "dap_string.h"
+#include "dap_chain_common.h"
+#include "dap_chain_net.h"
+#include "dap_chain_net_srv_common.h"
+
+typedef struct dap_chain_net_srv_order
+{
+    uint16_t version;
+    dap_chain_net_srv_uid_t srv_uid; // Service UID
+    byte_t padding; // some padding
+    dap_chain_net_srv_order_direction_t direction:8; // Order direction - SELL or PURCHASE
+    dap_chain_node_addr_t node_addr; // Node address that servs the order (if present)
+    dap_chain_hash_fast_t tx_cond_hash; // Hash index of conditioned transaction attached with order
+    dap_chain_net_srv_price_unit_uid_t price_unit; // Unit of service (seconds, megabytes, etc.) Only for SERV_CLASS_PERMANENT
+    dap_chain_time_t ts_created;
+    dap_chain_time_t ts_expires;
+    uint64_t price; //  service price in datoshi, for SERV_CLASS_ONCE ONCE for the whole service, for SERV_CLASS_PERMANENT  for one unit.
+    char price_ticker[DAP_CHAIN_TICKER_SIZE_MAX]; // Token ticker to pay for service
+    //uint8_t continent;
+    //char region[32];
+    uint32_t ext_size;
+    char ext[];
+} DAP_ALIGN_PACKED dap_chain_net_srv_order_t;
+
+// Init/deinit should be call only if private
+int dap_chain_net_srv_order_init(void);
+void dap_chain_net_srv_order_deinit(void);
+
+size_t dap_chain_net_srv_order_get_size(dap_chain_net_srv_order_t *a_order);
+
+bool dap_chain_net_srv_order_set_continent_region(dap_chain_net_srv_order_t **a_order, uint8_t a_continent_num, const char *a_region);
+bool dap_chain_net_srv_order_get_continent_region(dap_chain_net_srv_order_t *a_order, uint8_t *a_continent_num, char **a_region);
+
+size_t dap_chain_net_srv_order_continents_count(void);
+const char* dap_chain_net_srv_order_continent_to_str(int8_t a_num);
+int8_t dap_chain_net_srv_order_continent_to_num(const char *l_continent_str);
+
+dap_chain_net_srv_order_t * dap_chain_net_srv_order_find_by_hash_str(dap_chain_net_t * a_net, const char * a_hash_str);
+
+DAP_STATIC_INLINE dap_chain_net_srv_order_t * dap_chain_net_srv_order_find_by_hash(dap_chain_net_t * a_net, dap_chain_hash_fast_t * a_hash)
+{
+    if ( a_net && a_hash ){
+        char l_hash_str[DAP_CHAIN_HASH_FAST_SIZE * 2 + 4];
+        dap_chain_hash_fast_to_str(a_hash,l_hash_str,sizeof(l_hash_str)-1);
+        return  dap_chain_net_srv_order_find_by_hash_str(a_net, l_hash_str );
+    }
+}
+
+int dap_chain_net_srv_order_find_all_by(dap_chain_net_t * a_net,const dap_chain_net_srv_order_direction_t a_direction, const dap_chain_net_srv_uid_t a_srv_uid,
+                                        const dap_chain_net_srv_price_unit_uid_t a_price_unit, const char a_price_ticker[DAP_CHAIN_TICKER_SIZE_MAX],const uint64_t a_price_min, const uint64_t a_price_max,
+                                        dap_chain_net_srv_order_t ** a_output_orders, size_t * a_output_orders_count);
+int dap_chain_net_srv_order_delete_by_hash_str( dap_chain_net_t * a_net,const char * a_hash_str );
+
+/**
+ * @brief dap_chain_net_srv_order_delete_by_hash
+ * @param a_net
+ * @param a_hash
+ * @return
+ */
+DAP_STATIC_INLINE int dap_chain_net_srv_order_delete_by_hash(dap_chain_net_t * a_net, dap_chain_hash_fast_t * a_hash )
+{
+    char l_hash_str[DAP_CHAIN_HASH_FAST_SIZE * 2 + 4];
+    dap_chain_hash_fast_to_str(a_hash,l_hash_str,sizeof(l_hash_str)-1);
+    return dap_chain_net_srv_order_delete_by_hash_str ( a_net, l_hash_str);
+}
+
+char* dap_chain_net_srv_order_create(
+        dap_chain_net_t * a_net,
+        dap_chain_net_srv_order_direction_t a_direction,
+        dap_chain_net_srv_uid_t a_srv_uid, // Service UID
+        dap_chain_node_addr_t a_node_addr, // Node address that servs the order (if present)
+        dap_chain_hash_fast_t a_tx_cond_hash, // Hash index of conditioned transaction attached with order
+        uint64_t a_price, //  service price in datoshi, for SERV_CLASS_ONCE ONCE for the whole service, for SERV_CLASS_PERMANENT  for one unit.
+        dap_chain_net_srv_price_unit_uid_t a_price_unit, // Unit of service (seconds, megabytes, etc.) Only for SERV_CLASS_PERMANENT
+        char a_price_ticker[DAP_CHAIN_TICKER_SIZE_MAX],
+        dap_chain_time_t a_expires, // TS when the service expires
+        const char *a_ext,
+        const char *a_region,
+        int8_t a_continent_num
+        );
+
+int dap_chain_net_srv_order_save(dap_chain_net_t * a_net, dap_chain_net_srv_order_t *a_order);
+void dap_chain_net_srv_order_dump_to_string(dap_chain_net_srv_order_t *a_order,dap_string_t * a_str_out);
+
+/**
+* @brief dap_chain_net_srv_order_get_gdb_group_mempool
+* @param l_chain
+* @return
+*/
+DAP_STATIC_INLINE char * dap_chain_net_srv_order_get_gdb_group(dap_chain_net_t * a_net)
+{
+   if ( a_net ) {
+       const char c_srv_order_group_str[]="service.orders";
+       return dap_strdup_printf("%s.%s",a_net->pub.gdb_groups_prefix,c_srv_order_group_str);
+   }
+   return NULL;
+}
diff --git a/libdap-chain-net-srv/dap_chain_net_srv_stream_session.c b/libdap-chain-net-srv/dap_chain_net_srv_stream_session.c
new file mode 100644
index 0000000000000000000000000000000000000000..f5f1517b0e884fc9ccb8dd4f6cc3e5c927a08d7b
--- /dev/null
+++ b/libdap-chain-net-srv/dap_chain_net_srv_stream_session.c
@@ -0,0 +1,118 @@
+/*
+* Authors:
+* Dmitriy Gerasimov <naeper@demlabs.net>
+* Cellframe       https://cellframe.net
+* DeM Labs Inc.   https://demlabs.net
+* Copyright  (c) 2017-2019
+* All rights reserved.
+
+This file is part of CellFrame SDK the open source project
+
+CellFrame SDK is free software: you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation, either version 3 of the License, or
+(at your option) any later version.
+
+CellFrame SDK is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with any CellFrame SDK based project.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+#include "dap_common.h"
+#include "rand/dap_rand.h"
+#include "dap_chain_net_srv.h"
+#include "dap_chain_net_srv_stream_session.h"
+
+#define LOG_TAG "dap_stream_ch_chain_net_srv_session"
+
+/**
+ * @brief dap_chain_net_srv_stream_session_create
+ * @param a_session
+ * @return
+ */
+dap_chain_net_srv_stream_session_t * dap_chain_net_srv_stream_session_create( dap_stream_session_t * a_session)
+{
+    if (!a_session){
+        log_it (L_ERROR, "Session is NULL!");
+        return NULL;
+    }
+    dap_chain_net_srv_stream_session_t * l_session_srv= DAP_NEW_Z(dap_chain_net_srv_stream_session_t);
+    a_session->_inheritor = l_session_srv;
+    l_session_srv->parent = a_session;
+    log_it(L_NOTICE, "created service session");
+    return  l_session_srv;
+}
+
+/**
+ * @brief dap_chain_net_srv_usage_add
+ * @param a_srv_session
+ * @param a_net
+ * @param a_srv
+ * @return
+ */
+dap_chain_net_srv_usage_t* dap_chain_net_srv_usage_add (dap_chain_net_srv_stream_session_t * a_srv_session,
+                                                                            dap_chain_net_t * a_net, dap_chain_net_srv_t * a_srv)
+{
+    if ( a_srv_session && a_net && a_srv ){
+        dap_chain_net_srv_usage_t * l_ret = DAP_NEW_Z(dap_chain_net_srv_usage_t);
+        //l_ret->id = 666;
+        randombytes(&l_ret->id, sizeof(l_ret->id));
+        l_ret->net = a_net;
+        l_ret->service = a_srv;
+        pthread_rwlock_init(&l_ret->rwlock,NULL);
+        pthread_mutex_lock(&a_srv_session->parent->mutex);
+        HASH_ADD_INT( a_srv_session->usages, id,l_ret );
+        pthread_mutex_unlock(&a_srv_session->parent->mutex);
+        log_it( L_NOTICE, "Added service %s:0x%016llX , usage id: %d", l_ret->net->pub.name, a_srv->uid.uint64, l_ret->id);
+        return l_ret;
+    }else{
+        log_it( L_ERROR, "Some NULLs was in input");
+        return NULL;
+    }
+}
+
+/**
+ * @brief dap_chain_net_srv_usage_delete
+ * @param a_srv_session
+ * @param a_usage
+ * @return
+ */
+void dap_chain_net_srv_usage_delete (dap_chain_net_srv_stream_session_t * a_srv_session,
+                                                                               dap_chain_net_srv_usage_t* a_usage)
+{
+    if ( a_usage->receipt )
+        DAP_DELETE( a_usage->receipt );
+    if ( a_usage->clients ){
+        for (dap_chain_net_srv_client_t * l_srv_client = a_usage->clients, * tmp = NULL; l_srv_client; ){
+            tmp = l_srv_client;
+            l_srv_client = l_srv_client->next;
+            DAP_DELETE( tmp);
+        }
+
+
+    }
+    pthread_mutex_lock(&a_srv_session->parent->mutex);
+    HASH_DEL(a_srv_session->usages, a_usage);
+    pthread_mutex_unlock(&a_srv_session->parent->mutex);
+    DAP_DELETE( a_usage );
+}
+
+/**
+ * @brief dap_chain_net_srv_usage_find
+ * @param a_srv_session
+ * @param a_usage_id
+ * @return
+ */
+dap_chain_net_srv_usage_t* dap_chain_net_srv_usage_find (dap_chain_net_srv_stream_session_t * a_srv_session,
+                                                                             uint32_t a_usage_id)
+{
+    dap_chain_net_srv_usage_t * l_ret = NULL;
+    pthread_mutex_lock(&a_srv_session->parent->mutex);
+    HASH_FIND_INT(a_srv_session->usages, &a_usage_id, l_ret);
+    pthread_mutex_unlock(&a_srv_session->parent->mutex);
+    return  l_ret;
+}
diff --git a/libdap-chain-net-srv/dap_chain_net_srv_stream_session.h b/libdap-chain-net-srv/dap_chain_net_srv_stream_session.h
new file mode 100644
index 0000000000000000000000000000000000000000..29c506e8ebf04197184a34d2e42f0b2edf74be42
--- /dev/null
+++ b/libdap-chain-net-srv/dap_chain_net_srv_stream_session.h
@@ -0,0 +1,89 @@
+/*
+* Authors:
+* Dmitriy Gerasimov <naeper@demlabs.net>
+* Cellframe       https://cellframe.net
+* DeM Labs Inc.   https://demlabs.net
+* Copyright  (c) 2017-2019
+* All rights reserved.
+
+This file is part of CellFrame SDK the open source project
+
+CellFrame SDK is free software: you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation, either version 3 of the License, or
+(at your option) any later version.
+
+CellFrame SDK is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with any CellFrame SDK based project.  If not, see <http://www.gnu.org/licenses/>.
+*/
+#pragma once
+
+#include "pthread.h"
+#include "uthash.h"
+#include "dap_stream_session.h"
+#include "dap_hash.h"
+#include "dap_chain.h"
+#include "dap_sign.h"
+#include "dap_chain_datum_tx.h"
+#include "dap_chain_datum_tx_receipt.h"
+//#include "dap_chain_net_srv.h"
+#include "dap_chain_net_srv_order.h"
+#include "dap_chain_net_srv_client.h"
+#include "dap_chain_wallet.h"
+
+typedef struct dap_chain_net_srv dap_chain_net_srv_t;
+typedef struct dap_chain_net_srv_usage{
+    uint32_t id; // Usage id
+    pthread_rwlock_t rwlock;
+    time_t ts_created; // Created timpestamp
+    dap_chain_net_t * net; // Chain network where everything happens
+    dap_chain_wallet_t * wallet;
+    dap_chain_net_srv_t * service; // Service that used
+
+    dap_chain_datum_tx_receipt_t* receipt;
+    dap_chain_datum_tx_receipt_t* receipt_next; // Receipt on the next units amount
+    dap_chain_net_srv_price_t * price; // Price for issue next receipt
+    size_t receipt_size;
+    size_t receipt_next_size;
+    dap_chain_net_srv_client_t * clients;
+    dap_chain_datum_tx_t * tx_cond;
+    dap_chain_hash_fast_t tx_cond_hash;
+    char token_ticker[DAP_CHAIN_TICKER_SIZE_MAX];
+    bool is_active;
+    bool is_free;
+    UT_hash_handle hh; //
+} dap_chain_net_srv_usage_t;
+
+typedef void (*dap_response_success_callback_t) (dap_stream_ch_chain_net_srv_pkt_success_t*, void*);
+
+typedef struct dap_chain_net_srv_stream_session {
+    dap_stream_session_t * parent;
+    dap_chain_net_srv_usage_t * usages;
+    dap_chain_net_srv_usage_t * usage_active;
+
+    uint128_t limits_bytes; // Bytes left
+    time_t limits_ts; // Timestamp until its activte
+    dap_chain_net_srv_price_unit_uid_t limits_units_type;
+
+    time_t ts_activated;
+    dap_sign_t* user_sign; // User's signature for auth if reconnect
+
+    dap_response_success_callback_t response_success_callback;
+    void *response_success_callback_data;
+
+} dap_chain_net_srv_stream_session_t;
+
+#define DAP_CHAIN_NET_SRV_STREAM_SESSION(a) ((dap_chain_net_srv_stream_session_t *) (a)->_inheritor )
+
+dap_chain_net_srv_stream_session_t * dap_chain_net_srv_stream_session_create( dap_stream_session_t * a_session);
+dap_chain_net_srv_usage_t* dap_chain_net_srv_usage_add (dap_chain_net_srv_stream_session_t * a_srv_session,
+                                                                            dap_chain_net_t * a_net, dap_chain_net_srv_t * a_srv);
+void dap_chain_net_srv_usage_delete (dap_chain_net_srv_stream_session_t * a_srv_session,
+                                                                               dap_chain_net_srv_usage_t* a_usage);
+dap_chain_net_srv_usage_t* dap_chain_net_srv_usage_find (dap_chain_net_srv_stream_session_t * a_srv_session,
+                                                                             uint32_t a_usage_id);