fix: add some better error handling

examples/index.js

@@ -1,3 +1,5 @@
+'use strict';
+
 const fs = require('fs');
 const Innertube = require('..');
 
@@ -10,7 +12,8 @@ async function start() {
 
   const video = await youtube.getDetails(search.videos[0].id);
   console.info('Video details:', video);
-
+  if (video.error) return;
+  
   if (youtube.logged_in) {
     const myNotifications = await youtube.getNotifications();
     console.info('My notifications:', myNotifications);
@@ -53,7 +56,7 @@ async function start() {
     type: 'videoandaudio' // can be “video”, “audio” and “videoandaudio”
   });
 
-  stream.pipe(fs.createWriteStream(`./${search.videos[0].title}.mp4`));
+  stream.pipe(fs.createWriteStream(`./${search.videos[0].id}.mp4`));
 
   stream.on('start', () => {
     console.info('[DOWNLOADER]', 'Starting download now!');

lib/Innertube.js

@@ -91,6 +91,7 @@ class Innertube extends EventEmitter {
   }
 
   async search(query, options = { period: 'any', order: 'relevance', duration: 'any' }) {
+    if (!query) throw new Error('No query was provided');
     if (!this.initialized) throw new Error('Missing Innertube data.');
 
     const yt_response = await Axios.post(`${Constants.urls.YT_BASE_URL}/youtubei/v1/search${this.logged_in && this.cookie.length < 1 ? '' : `?key=${this.key}`}`, JSON.stringify({ context: this.context, params: Constants.filters(options.period + ',' + options.duration + ',' + options.order), query }), Constants.innertube_request_opts({ session: this })).catch((error) => error);
@@ -135,6 +136,8 @@ class Innertube extends EventEmitter {
   }
 
   async getDetails(id) {
+    if (!id) return { error: 'Video id missing' };
+    
     const data = await this.requestVideoInfo(id, false);
     const video_data = Constants.formatVideoData(data, this, false);
     
@@ -192,6 +195,8 @@ class Innertube extends EventEmitter {
   }
 
   download(id, options = {}) {
+    if (!id) throw new Error('Video id missing');
+    
     options.quality = options.quality || '360p';
     options.type = options.type || 'videoandaudio';
     options.format = options.format || 'mp4';