diff --git a/app-backend/config/functions.config.js b/app-backend/config/functions.config.js
new file mode 100644
index 0000000..b229914
--- /dev/null
+++ b/app-backend/config/functions.config.js
@@ -0,0 +1,26 @@
+const request = require("request");
+const VideoCategories = require("../models/objects/video.categories.model");
+
+function asyncRequest(uri, option){
+  return new Promise(function(resolve){
+    request(uri, option,function (error, response, body){
+      resolve({response: response, body: JSON.parse(body)});
+    });
+  });
+}
+module.exports.asyncRequest = asyncRequest;
+
+function asyncInterest(interest, source){
+  return new Promise(function(resolve){
+    for(const i in VideoCategories){
+      for(const j in VideoCategories[i].categories){
+        if((VideoCategories[i].categories[j].name === interest || VideoCategories[i].categories[j].id === interest)
+          && VideoCategories[i].categories[j].source === source){
+          resolve(VideoCategories[i].interest);
+        }
+      }
+    }
+    resolve(null);
+  });
+}
+module.exports.asyncInterest = asyncInterest;