fix: swagger getting configuration from config file

Author: namchuai

engine/controllers/swagger.cc

@@ -22,10 +22,17 @@ constexpr auto ScalarUi = R"(
 </html>
 )";
 
-Json::Value SwaggerController::generateOpenAPISpec() {
+Json::Value SwaggerController::GenerateOpenApiSpec() const {
   Json::Value root;
   Json::Reader reader;
   reader.parse(CortexOpenApi::GetOpenApiJson(), root);
+
+  Json::Value server_url;
+  server_url["url"] = host_ + ":" + port_;
+  Json::Value resp_data(Json::arrayValue);
+  resp_data.append(server_url);
+
+  root["servers"] = resp_data;
   return root;
 }
 
@@ -41,7 +48,7 @@ void SwaggerController::serveSwaggerUI(
 void SwaggerController::serveOpenAPISpec(
     const drogon::HttpRequestPtr& req,
     std::function<void(const drogon::HttpResponsePtr&)>&& callback) const {
-  Json::Value spec = generateOpenAPISpec();
+  auto spec = GenerateOpenApiSpec();
   auto resp = cortex_utils::CreateCortexHttpJsonResponse(spec);
   callback(resp);
 }

engine/controllers/swagger.h

@@ -5,13 +5,18 @@
 
 using namespace drogon;
 
-class SwaggerController : public drogon::HttpController<SwaggerController> {
+class SwaggerController
+    : public drogon::HttpController<SwaggerController, false> {
+
  public:
   METHOD_LIST_BEGIN
   ADD_METHOD_TO(SwaggerController::serveSwaggerUI, "/", Get);
   ADD_METHOD_TO(SwaggerController::serveOpenAPISpec, "/openapi.json", Get);
   METHOD_LIST_END
 
+  explicit SwaggerController(const std::string& host, const std::string& port)
+      : host_{host}, port_{port} {};
+
   void serveSwaggerUI(
       const drogon::HttpRequestPtr& req,
       std::function<void(const drogon::HttpResponsePtr&)>&& callback) const;
@@ -21,6 +26,10 @@ class SwaggerController : public drogon::HttpController<SwaggerController> {
       std::function<void(const drogon::HttpResponsePtr&)>&& callback) const;
 
  private:
+  std::string host_;
+  std::string port_;
+
   static const std::string swaggerUIHTML;
-  static Json::Value generateOpenAPISpec();
-};
+
+  Json::Value GenerateOpenApiSpec() const;
+};

engine/main.cc

@@ -11,6 +11,7 @@
 #include "controllers/models.h"
 #include "controllers/process_manager.h"
 #include "controllers/server.h"
+#include "controllers/swagger.h"
 #include "controllers/threads.h"
 #include "database/database.h"
 #include "migrations/migration_manager.h"
@@ -155,6 +156,8 @@ void RunServer(std::optional<int> port, bool ignore_cout) {
   file_watcher_srv->start();
 
   // initialize custom controllers
+  auto swagger_ctl = std::make_shared<SwaggerController>(config.apiServerHost,
+                                                         config.apiServerPort);
   auto file_ctl = std::make_shared<Files>(file_srv, message_srv);
   auto assistant_ctl = std::make_shared<Assistants>(assistant_srv);
   auto thread_ctl = std::make_shared<Threads>(thread_srv, message_srv);
@@ -169,6 +172,7 @@ void RunServer(std::optional<int> port, bool ignore_cout) {
       std::make_shared<inferences::server>(inference_svc, engine_service);
   auto config_ctl = std::make_shared<Configs>(config_service);
 
+  drogon::app().registerController(swagger_ctl);
   drogon::app().registerController(file_ctl);
   drogon::app().registerController(assistant_ctl);
   drogon::app().registerController(thread_ctl);