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const http = require('http') |
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const url = require('url') |
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const querystring = require('querystring') |
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const crypto = require('crypto') |
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const opn = require('opn') |
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const { SPOTIFY_CLIENT_ID, HOST, PORT, CALLBACK } = process.env |
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const host = HOST || 'http://localhost' |
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const port = PORT || 3000 |
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const callbackPath = CALLBACK || 'callback' |
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const spotifyAuthEndpoint = 'https://accounts.spotify.com/authorize' |
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if (!SPOTIFY_CLIENT_ID) { |
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console.error('Please provide a client ID.') |
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process.exit() |
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} |
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const state = crypto.randomBytes(16).toString('hex') |
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const queryParams = querystring.stringify({ |
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response_type: 'code', |
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client_id: SPOTIFY_CLIENT_ID, |
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redirect_uri: `${host}:${port}/${callbackPath}`, |
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state, |
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}) |
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const server = http.createServer((req, res) => { |
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const urlParts = url.parse(req.url, true) |
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const { query, pathname } = urlParts |
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|
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let message = '' |
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if (pathname === `/${callbackPath}`) { |
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if (query.error) { |
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message = `Error: ${query.error}` |
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} else if (query.state !== state) { |
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message = 'Error: state mismatch' |
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} else if (query.code) { |
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message = `Access Token: ${query.code}` |
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} else { |
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message = 'No code returned' |
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} |
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console.log(message) |
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} else { |
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message = '404: path not found' |
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} |
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res.write(`<html><body><p>${message}</p></body></html>`) |
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res.end() |
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server.close(() => process.exit()) |
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}) |
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server.listen(port) |
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const spotifyAuthURL = `${spotifyAuthEndpoint}?${queryParams}` |
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console.log('Opening', spotifyAuthURL) |
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opn(spotifyAuthURL) |
