refactors LoggerController with LogsRouter

src/Routers/LogsRouter.js

@@ -0,0 +1,60 @@
+import { Parse } from 'parse/node';
+import PromiseRouter from '../PromiseRouter';
+
+// only allow request with master key
+let enforceSecurity = (auth) => {
+  if (!auth || !auth.isMaster) {
+    throw new Parse.Error(
+      Parse.Error.OPERATION_FORBIDDEN,
+      'Clients aren\'t allowed to perform the ' +
+      'get' + ' operation on logs.'
+    );
+  }
+}
+
+export class LogsRouter extends PromiseRouter {
+  
+  mountRoutes() {
+    this.route('GET','/logs', (req) => {
+      return this.handleGET(req);
+    });
+  }
+
+  // Returns a promise for a {response} object.
+  // query params:
+  // level (optional) Level of logging you want to query for (info || error)
+  // from (optional) Start time for the search. Defaults to 1 week ago.
+  // until (optional) End time for the search. Defaults to current time.
+  // order (optional) Direction of results returned, either “asc” or “desc”. Defaults to “desc”.
+  // size (optional) Number of rows returned by search. Defaults to 10
+  handleGET(req) {
+    if (!req.config || !req.config.loggerController) {
+      throw new Parse.Error(Parse.Error.PUSH_MISCONFIGURED,
+        'Logger adapter is not availabe');
+    }
+
+    let promise = new Parse.Promise();
+    let from = req.query.from;
+    let until = req.query.until;
+    let size = req.query.size;
+    let order = req.query.order
+    let level = req.query.level;
+    enforceSecurity(req.auth);
+    
+    const options = {
+      from,
+      until,
+      size,
+      order,
+      level,
+    }
+    
+    return req.config.loggerController.getLogs(options).then((result) => {
+      return Promise.resolve({
+        response: result
+      });
+    })
+  }
+}
+
+export default LogsRouter;