Fix issue for NFSubscribeNotify

src/common/smf.h

@@ -193,7 +193,7 @@ typedef struct qos_profile_s {
 // NRF
 #define NNRF_NFM_BASE "/nnrf-nfm/"
 #define NNRF_NF_REGISTER_URL "/nf-instances/"
-#define NNRF_NF_STATUS_SUBSCRIBE_URL "/subscriptions/"
+#define NNRF_NF_STATUS_SUBSCRIBE_URL "/subscriptions"
 #define NRF_CURL_TIMEOUT_MS 100L
 
 // for CURL

src/smf_app/smf_app.cpp

@@ -344,6 +344,10 @@ smf_app::smf_app(const std::string& config_file)
 
   // Register to NRF
   register_to_nrf();
+  // Trigger NFStatusNotify
+  unsigned int microsecond = 10000;  // 10ms
+  usleep(microsecond);
+  trigger_upf_status_notification_subscribe();
 
   Logger::smf_app().startup("Started");
 }
@@ -1950,6 +1954,7 @@ void smf_app::trigger_upf_status_notification_subscribe() {
           TASK_SMF_APP, TASK_SMF_N11);
 
   nlohmann::json json_data = {};
+  //TODO: remove hardcoded values
   json_data["nfStatusNotificationUri"] =
       std::string(inet_ntoa(*((struct in_addr*) &smf_cfg.sbi.addr4))) +
       ":" + std::to_string(smf_cfg.sbi.port) + "/nsmf_nfstatus_notify/" +

src/smf_app/smf_n11.cpp

@@ -921,11 +921,11 @@ void smf_n11::subscribe_upf_status_notify(
       msg->http_version);
 
   Logger::smf_n11().debug(
-      "Send NF De-register to NRF (NRF URL %s)", msg->url.c_str());
+      "Send NFStatusNotify to NRF, NRF URL %s)", msg->url.c_str());
 
   std::string body = msg->json_data.dump();
   Logger::smf_n11().debug(
-      "Send NF Instance Registration to NRF, msg body: \n %s", body.c_str());
+      "Send NFStatusNotify to NRF, msg body: %s", body.c_str());
 
   curl_global_init(CURL_GLOBAL_ALL);
   CURL* curl = curl = curl_easy_init();
@@ -938,7 +938,6 @@ void smf_n11::subscribe_upf_status_notify(
     curl_easy_setopt(curl, CURLOPT_HTTPHEADER, headers);
     curl_easy_setopt(curl, CURLOPT_URL, msg->url.c_str());
     curl_easy_setopt(curl, CURLOPT_HTTPGET, 1);
-    curl_easy_setopt(curl, CURLOPT_CUSTOMREQUEST, "DELETE");
     curl_easy_setopt(curl, CURLOPT_TIMEOUT_MS, NRF_CURL_TIMEOUT_MS);
 
     if (msg->http_version == 2) {