Oneclick to import all your playlists from Netease Music to Spotify. 一键导入你的所有网易云音乐歌单到 Spotify

Just started to learn Javascript, this simple program is still with strong Python style, but solves my real problem, any suggestions or questions are welcome. 我刚开始学习 JavaScript，这个简单的程序仍然很有 Python 的风格，但解决了我的实际问题，欢迎提出任何建议或问题。

The general logic of this program is pretty simple, by usinb the self-hosted API, it find the netease music user profile with the given user id, and then fetch all the playlists, then for each playlist it feches all the songs. Then with holding all the playlists and songs, it goes to Spotify to search the songs with names and artists as search string one by one, to get the corresponding track ids in Spotify. Finally, for each whole playlist, it creates the playlist in Spotify and add the songs to the playlist in one go. 这个程序的一般逻辑非常简单，通过使用自托管的 API，它寻找给定用户 ID 的网易云音乐用户资料，然后获取所有的播放列表，然后对于每个播放列表，它获取所有的歌曲。然后，持有所有的播放列表和歌曲，它去 Spotify 搜索歌曲，以歌名和艺术家作为搜索字符串，逐个获取 Spotify 中的对应曲目 ID。最后，对于每个播放列表，它一次性在 Spotify 中创建该播放列表并将歌曲添加到播放列表中。

Chinese below | 中文说明请往下翻 ↓↓↓

Firstly, clone the project to your local machine and install packages.

git clone https://github.com/noahwo/one-click-netease-spotify.git
cd one-click-netease-spotify
npm insall

You can start up the app by:

node app.js

Then rename example.env to .env.

You need to host the NeteaseMusic API service up, follow the instructions from this project neteasecloudmusicapi. Documentation is available here. (Only Chinsese version provided)

Put the API service address in the .env for the variable NE_API. e.g., export NE_API=http://localhost:3000.

Login to your Netease Music account in broswer, and go to your profile page. The user id is in the URL, e.g., http://music.163.com/#/user/home?id=12345678, the user id is 12345678.

Put the user id in the .env for the variable USER_ID. e.g., export USER_ID=12345678.

Count how many playlists you have/you wanna import, which is gonna be used in the program.

P.S. playlists importing would be done following the order shown in the page. Importing by default includes both the playlists you created and collected.

I did not figure out how to get the Authorization Code with PKCE Flow nor Implicit Grant which are the only ways to manipulate your own account, so there is a way to work around at the time through the code example given by the official.

But anyway you need to login to Spotify Developer page first. you can enter this page by clicking the up-left corner icon [Spotify for Developers]. The click 'See it in action'

The token variable is what we want, copy the full string to .env, e.g., ACCESS_TOKEN='******your-token-string******'.

NOTE: This token expires in 1 hour, you need to refresh it manually.

In the function fetchNeteasePlaylists(USER_ID), you can edit limit and offset in the URL. limit (by default 30) determines how many playlists you wanna import, and offset (by default 0) determines the starting point (#th of your all lists) of the importing. e.g.,

const response = await fetch(
  `${NE_API}/user/playlist?uid=${USER_ID}&limit=30&offset=0`
);

Around the code below you can modify the filter condition to exclude some playlists you don't wanna import. For me, I already imported Favorite music from Netease, and labeled previously imported playlists with a "-" prefix.

e.g.,

filteredPlaylist = await simplifiedPlaylist.filter(
  (item) => !item.name.startsWith("-") && !item.name.endsWith("喜欢的音乐")
);

P.S. Due to the 300 character limit of the playlist description in Spotify, the failed song transitions info in playlist description may not be complete, you can check terminal output for missing information.

首先，将项目克隆到您的本地计算机并安装软件包。

git clone https://github.com/noahwo/one-click-netease-spotify.git
cd one-click-netease-spotify
npm install

您可以通过以下方式启动应用程序：

node app.js

然后将 example.env 重命名为 .env。

您需要启动网易云音乐 API 服务，按照此项目的说明进行操作 neteasecloudmusicapi。文档可在这里找到。（仅提供中文版）

将 API 服务地址放入 .env 中的变量 NE_API 中。例如，export NE_API=http://localhost:3000。

在浏览器中登录您的网易云音乐帐户，并转到您的个人资料页面。用户 ID 在 URL 中，例如，http://music.163.com/#/user/home?id=12345678，用户 ID 是 12345678。

将用户 ID 放入 .env 中的变量 USER_ID 中。例如，export USER_ID=12345678。

计算您有/想要导入的播放列表数量，这将在程序中使用。

注：导入播放列表将按页面显示的顺序进行。默认情况下，导入包括您创建的和收藏的播放列表。

我尚未弄清如何使用 PKCE 流或隐式授权来获取授权码，这是操作您自己帐户的唯一方式，所以当时有一种通过官方给出的代码示例绕过的方法。

但无论如何，您首先需要登录Spotify Developer 页面。 您可以通过点击左上角图标 [Spotify for Developers] 进入此页面。然后点击 'See it in action'。

token 变量是我们想要的，将完整字符串复制到 .env 中，例如，ACCESS_TOKEN='******your-token-string******'。

注意：此令牌在 1 小时后过期，您需要手动刷新它。

在函数 fetchNeteasePlaylists(USER_ID) 中，您可以编辑 URL 中的 limit 和 offset。limit（默认为 30）确定您想要导入的播放列表数量，offset（默认为 0）确定导入的起始点（您所有列表的第 # 个）。 例如，

const response = await fetch(
  `${NE_API}/user/playlist?uid=${USER_ID}&limit=30&offset=0`
);

在下面的代码中，您可以修改过滤条件以排除您不想要导入的某些播放列表。对于我来说，我已经从网易云音乐导入了“喜欢的音乐”，并使用“-”前缀标记了先前导入的播放列表。

例如，

filteredPlaylist = await simplifiedPlaylist.filter(
  (item) => !item.name.startsWith("-") && !item.name.endsWith("喜欢的音乐")
);

注：由于 Spotify 中播放列表描述的字符限制为 300，因此播放列表描述中的失败歌曲转换信息可能不完整，您可以检查终端输出以查找缺失的信息。