Merge pull request #299 from ResultadosDigitais/remote-room-data

add a remote room file option

README.md

@@ -87,7 +87,7 @@ The **#matrix** project has some environment variables that important to define.
 
 - The **#matrix** needs to know, where it get rooms definitions:
 
-		ROOMS_SOURCE=ENVIRONMENT
+		ROOMS_SOURCE=ENVIRONMENT | REMOTE
 
 - There is a config that define the rooms of The **#matrix**, If you want to customize your rooms or add and a new room, you have to configure a `ROOMS_SOURCE=ENVIRONMENT` and config `ROOMS_DATA` like the example:
 
@@ -109,6 +109,10 @@ The **#matrix** project has some environment variables that important to define.
 		   }
 		 ]
 
+Another option is to have a remote rooms config file (this file needs to be accessible via http/s). You can configure a `ROOMS_SOURCE=REMOTE` and config `ROOMS_DATA` like the example:
+
+		ROOMS_DATA=https://myfilelocation.io/myrooms_data.json
+
 
 #### External Meet
 The embeded meet is provided by [meet.jit.si](https://meet.jit.si) service, but you can change that in any room, using serices like [Meet](https://meet.google.com/) or [Zoom](https://zoom.us/). For that, you just need provide the parameter `externalMeetUrl` in your room config:

backend/app/controllers/rooms.controller.js

@@ -1,6 +1,7 @@
 import fs from "fs";
 import uuid from "uuid/v4";
 import path from "path";
+import request from "request";
 
 const roomFilePath = "../file/matrix.room.web.json";
 
@@ -55,11 +56,30 @@ const fetchFromEnvironment = (env) => {
   return new Promise(resolve => resolve(roomsDetail));
 };
 
+const fetchFromRemote = (env) => {
+
+  let url = env.ROOMS_DATA;
+
+  return new Promise(function(resolve, reject){
+        request(url, function (error, response, body) {
+            // in addition to parsing the value, deal with possible errors
+            if (error) return reject(error);
+            try {
+                // JSON.parse() can throw an exception if not valid JSON
+                resolve(JSON.parse(body));
+            } catch(e) {
+                reject(e);
+            }
+        });
+    });
+};
+
 const fetchRooms = (strategy) => {
   switch (strategy) {
-    // TODO add suport to fetch from endpoint
     case "ENVIRONMENT":
       return fetchFromEnvironment(process.env);
+    case "REMOTE":
+      return fetchFromRemote(process.env);
     default:
       return fetchFromFile();
   }