Added crude support for route middleware. Tested with multer file upload

Author: rajeshpillai

package-lock.json

@@ -14,6 +14,7 @@
     "consolidate": "^0.15.1",
     "ejs": "^2.6.1",
     "morgan": "^1.9.1",
+    "multer": "^1.4.2",
     "nodemon": "^2.0.3",
     "serve-static": "^1.13.2"
   }

package.json

@@ -20,7 +20,8 @@ class App {
   init() {
     // Create method on the instance of app
     this.methods.forEach(method => {
-      this[method.toLowerCase()] = (path, callback) => {
+      //todo: param as arrays (last function being the callback)
+      this[method.toLowerCase()] = (path, ...callback) => {
         this.router.route(method, path, callback);
       };
     });

src/lib/application.js

@@ -25,11 +25,13 @@ class Router {
         })
     }
 
-    route(method, url, callback) {
+    route(method, url,  callback) {
+        console.log("ARGS: MIDDLEWARE: ", url, callback);
         let routes = this.routes[method.toLowerCase()];  // There can be more than one route matching
         routes.push({
             path: url,
-            callback: callback
+            middlewares: callback.slice(0,callback.length-1),
+            callback: callback[callback.length-1]  // last param
         });
     }
 
@@ -58,6 +60,7 @@ class Router {
         console.log("NURL: ", url);
 
         let matchedRoute = this.match(url, method);
+        console.log("matchedRoute: ", matchedRoute);
 
         if (!matchedRoute) {
             return res.notFound().end("Not found!");
@@ -66,6 +69,12 @@ class Router {
         // Setup request-> todo
         req = this._setupRequestParams(req, matchedRoute.params, matchedRoute.query);
 
+        // If route has middleware call it
+        matchedRoute.match.middlewares.forEach(m => {
+            console.log("CALLING ROUTE:MIDDLEWARES: ",m);
+            m(req, res, () => {});
+        });
+
         // TODO:
         if (method == "get" || method == "delete") {  // get, delete etc
             matchedRoute.match.callback(req, res);
@@ -108,7 +117,12 @@ class Router {
 
             //TODO: NEED WORK HERE
             if (postedData && postedData.indexOf('{') > -1) {
-                req.body = JSON.parse(postedData);
+                try {
+                    req.body = JSON.parse(postedData);
+                } catch(e) {
+                    req.body = postedData;
+                    req.file = postedData;
+                }
             } else {
                 req.body = postedData;
             }