Close #9 playlists_tracks routes

routes/playlists_tracks.js

@@ -0,0 +1,63 @@
+'use strict';
+
+const express = require('express');
+const router = express.Router();
+
+const ev = require('express-validation');
+// const validations = require('../validations/playlists_tracks');
+const knex = require('../knex');
+
+router.get('/playlists_tracks', (req, res, next) => {
+  knex('playlists_tracks')
+    .orderBy('id')
+    .then((playlists_tracks) => {
+      res.send(playlists_tracks);
+    })
+    .catch((err) => {
+      next(err);
+    });
+});
+
+router.post('/playlists_tracks', (req, res, next) => {
+  const track_id = Number.parseInt(req.body.track_id);
+  const playlist_id = Number.parseInt(req.body.playlist_id);
+
+  knex('tracks')
+    .where('id', track_id)
+    .first()
+    .then((track) => {
+      if (!track) {
+        const err = new Error('Invalid track id.');
+        err.status = 400;
+
+        throw err;
+      }
+
+      return knex('playlists')
+        .where('id', playlist_id)
+        .first()
+        .then((playlist) => {
+          if (!playlist) {
+            const err = new Error('Invalid playlist id.')
+            err.status = 400;
+
+            throw err;
+          }
+        });
+    })
+    .then(() => {
+      return knex('playlists_tracks')
+        .insert(req.body, '*')
+        .then((playlists_tracks) => {
+          res.send(playlists_tracks[0]);
+        })
+        .catch((err) => {
+          throw err;
+        });
+    })
+    .catch((err) => {
+      next(err);
+    });
+});
+
+module.exports = router;

server.js

@@ -22,7 +22,7 @@ app.use(bodyParser.json());
 
 app.use(playlists);
 app.use(tracks);
-//app.use(playlists_tracks);
+app.use(playlists_tracks);
 
 app.use((_req, res) => {
   res.sendStatus(404);