node(koa)微信公众号接口认证

使用微信测试号, 花生壳内网穿透

需要注意 token 两边都是自定义, 需要保持一致,

const Koa = require('koa')
const sha1 = require('sha1')

const app = new Koa()

const config = {
  wechat: {
    appID: '', //填写你自己的appID
    appSecret: '',  //填写你自己的appSecret
    token: ''  //填写你自己的token
  }
}

app.use(async (ctx) => {
  const token = config.wechat.token
  const signature = ctx.request.query.signature
  const nonce = ctx.request.query.nonce
  const timestamp = ctx.request.query.timestamp
  const echostr = ctx.request.query.echostr
  let str = [token, timestamp, nonce].sort().join('')
  const sha = sha1(str)
  ctx.body = sha === signature ? echostr + '' : 'failed'
})

app.listen(8999, () => {
  console.log('node started port 8999')
})

微信测试号地址  点击验证  显示配置成功即可