Merge pull request #140 from GetRayo/feature/middleware

`notFound` method to have access to `middleware.`

docs/examples/middleware.js

@@ -0,0 +1,17 @@
+/* eslint no-console: 0 */
+
+const rayo = require('../../packages/rayo');
+const send = require('../../packages/send');
+
+const options = {
+  port: 5050,
+  onError: (error, req, res) => res.send({ error }, 409),
+  notFound: (req, res) => res.send({ error: `${req.url} not found` }, 404)
+};
+
+rayo(options)
+  .through(send())
+  .get('/', (req, res, step) => step('Thrown by the step function...'))
+  .start((address) => {
+    console.log(`Up on port ${address.port}`);
+  });

packages/rayo/bridge.js

@@ -81,7 +81,7 @@ module.exports = class Bridge {
       ? null
       : {
           params: exec(path, url),
-          stack: this.t.concat(this.s[verb][url[0].old])
+          stack: this.s[verb][url[0].old]
         };
   }
 };

packages/rayo/index.js

@@ -57,19 +57,23 @@ class Rayo extends Bridge {
 
   dispatch(req, res) {
     const parsedUrl = parseurl(req);
-    const route = this.fetch(req.method, parsedUrl.pathname);
-    if (!route) {
-      return this.notFound
-        ? this.notFound(req, res)
-        : end(req, res, 404, `${req.method} ${parsedUrl.pathname} is undefined.`);
-    }
-
     req.ip = ip(req);
-    req.params = route.params;
     req.pathname = parsedUrl.pathname;
     req.query = parse(parsedUrl.query);
 
-    return this.step(req, res, route.stack);
+    let stack;
+    const route = this.fetch(req.method, parsedUrl.pathname);
+    if (!route) {
+      stack = [
+        this.notFound ||
+          (() => end(req, res, 404, `${req.method} ${parsedUrl.pathname} is undefined.`))
+      ];
+    } else {
+      req.params = route.params;
+      ({ stack } = route);
+    }
+
+    return this.step(req, res, this.t.concat(stack));
   }
 
   step(req, res, stack, error = null, statusCode = 400) {