feat: prelight handler for inferences endpoints

Author: tikikun

controllers/prelight.h

@@ -4,17 +4,15 @@
 
 using namespace drogon;
 
-class prelight : public drogon::HttpController<prelight>
-{
-  public:
-    METHOD_LIST_BEGIN
-    // use METHOD_ADD to add your custom processing function here;
-    // METHOD_ADD(prelight::get, "/{2}/{1}", Get); // path is /prelight/{arg2}/{arg1}
-    // METHOD_ADD(prelight::your_method_name, "/{1}/{2}/list", Get); // path is /prelight/{arg1}/{arg2}/list
-    // ADD_METHOD_TO(prelight::your_method_name, "/absolute/path/{1}/{2}/list", Get); // path is /absolute/path/{arg1}/{arg2}/list
+class prelight : public drogon::HttpController<prelight> {
+public:
+  METHOD_LIST_BEGIN
+  ADD_METHOD_TO(prelight::handlePrelight, "/v1/chat/completions", Options);
+  ADD_METHOD_TO(prelight::handlePrelight, "/v1/embeddings", Options);
+  ADD_METHOD_TO(prelight::handlePrelight, "/v1/audio/transcriptions", Options);
+  ADD_METHOD_TO(prelight::handlePrelight, "/v1/audio/translations", Options);
+  METHOD_LIST_END
 
-    METHOD_LIST_END
-    // your declaration of processing function maybe like this:
-    // void get(const HttpRequestPtr& req, std::function<void (const HttpResponsePtr &)> &&callback, int p1, std::string p2);
-    // void your_method_name(const HttpRequestPtr& req, std::function<void (const HttpResponsePtr &)> &&callback, double p1, int p2) const;
+  void handlePrelight(const HttpRequestPtr &req,
+                      std::function<void(const HttpResponsePtr &)> &&callback);
 };