Switch to Koa, more es6

routes/search.js

@@ -1,44 +1,42 @@
-"use strict";
-var parse = require("url").parse;
-var lookup = require("../lib/lookup");
-var services = require("../lib/services");
+import {parse} from 'url';
+import co from 'co';
+import lookup from '../lib/lookup';
+import services from '../lib/services';
 
-module.exports = function(req, res) {
-  var url = parse(req.body.url);
-  if (!url.host) {
-    return res.json({error: {message: "You need to submit a url."}});
-  }
+module.exports = function* () {
+  let url = parse(this.request.body.url);
+  this.assert(url.host, 400, {error: {message: 'You need to submit a url.'}});
 
-  var promise = lookup(req.body.url);
+  let item = yield lookup(this.request.body.url);
 
-  if (!promise) {
-    return res.json({error: {message: "No supported music found at that link :("}});
-  }
+  this.assert(item, 400, {error: {message: 'No supported music found at that link :('}});
 
-  promise.then(function(item) {
-    if (!item) {
-      return res.json({error: {message: "No supported music found at that link :("}});
+  item.matched_at = new Date(); // eslint-disable-line camelcase
+  let matches = {};
+  matches[item.service] = item;
+
+
+  for (let service of services) {
+    if (service.id === item.service) {
+      continue;
     }
-    item.matched_at = new Date(); // eslint-disable-line camelcase
-    var matches = {};
-    matches[item.service] = item;
-    services.forEach(function(service) {
+    matches[service.id] = {service: service.id};
+  }
+
+  yield this.db.matches.save({_id: item.service + '$$' + item.id, 'created_at': new Date(), services: matches});
+  this.body = item;
+
+  process.nextTick(co.wrap(function* (){
+    for (let service of services) {
       if (service.id === item.service) {
-        return;
+        continue;
       }
       matches[service.id] = {service: service.id};
-      service.search(item).then(function(match) {
-        match.matched_at = new Date(); // eslint-disable-line camelcase
-        var update = {};
-        update["services." + match.service] = match;
-        req.db.matches.update({_id: item.service + "$$" + item.id}, {"$set": update});
-      });
-    });
-    return req.db.matches.save({_id: item.service + "$$" + item.id, "created_at": new Date(), services: matches}).then(function() {
-      res.json(item);
-    });
-  }, function(error) {
-    console.log(error.stack);
-    res.json({error: {message: "No matches found for this link, sorry :("}});
-  });
+      let match = yield service.search(item);
+      match.matched_at = new Date(); // eslint-disable-line camelcase
+      let update = {};
+      update['services.' + match.service] = match;
+      yield this.db.matches.updateOne({_id: item.service + '$$' + item.id}, {'$set': update});
+    }
+  }.bind(this)));
 };