35 lines
978 B
JavaScript
35 lines
978 B
JavaScript
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const crypto = require('crypto')
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const { HttpError } = require('./http')
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async function code2session(code, deviceId) {
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const appid = process.env.WX_APPID
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const secret = process.env.WX_SECRET
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if (!appid || !secret) {
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const seed = deviceId || 'guest'
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return {
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openid: `demo_${crypto.createHash('sha1').update(seed).digest('hex').slice(0, 16)}`,
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demo: true
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}
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}
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const url = new URL('https://api.weixin.qq.com/sns/jscode2session')
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url.search = new URLSearchParams({
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appid,
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secret,
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js_code: code,
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grant_type: 'authorization_code'
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}).toString()
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let session
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try {
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const res = await fetch(url, { signal: AbortSignal.timeout(8000) })
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session = await res.json()
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} catch (error) {
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throw new HttpError(502, '微信登录服务不可用')
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}
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if (!session.openid) throw new HttpError(400, session.errmsg || '微信登录失败')
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return { openid: session.openid, demo: false }
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}
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module.exports = { code2session }
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