Install

npm install weapp-auth

Usage

const Koa = require('koa')

const app = new Koa()

app.use(new WeappAuth({
  appid: 'your appid',
  secret: 'your secret'
}))

Or

const Koa = require('koa')

const app = new Koa()

const weappAuth = new WeappAuth({
  appid: 'your appid',
  secret: 'your secret'
})

app.use(weappAuth)

Or pass middleware set config used key ctx.weapp_config

const Koa = require('koa')

const app = new Koa()

app.use(async (ctx, next) => {
  ctx.weapp_config = {
    appid: 'acb',
    secret: 'ddd',
  }
  await next()
})

app.use(new WeappAuth())

Response

this middleware assembly weapp_auth to ctx

  app.use(async (ctx, next) => {
    console.log(ctx.weapp_auth)
  })

example:

{  
   code,
   encrypt_data,
   iv,
   session_key,
   user_info:{  
      openId,
      nickName,
      gender:1,
      language:'zh_CN',
      city:'Chaoyang',
      province:'Beijing',
      country:'China',
      avatarUrl,
      watermark:{  
         timestamp:1503576077,
         appid
      }
   }
}

Timing diagram