Applet cloud development using tcb-router

• tcb-router-based koa-style small program to develop cloud-cloud routing function lightweight class library, mainly used to optimize server-side processing logic function
• It can be divided into many tcb-router based on routing function to handle a cloud service environment.
• A user can only create 50 cloud function in a cloud environment
• Similar request is classified into a same function processing
• tcb-routerKoa equivalent middleware
  equivalent model of an onion, each layer corresponds to a middleware, the implementation of one level, only been performed after the last, before returning
  
  REQUEST request
  response in response to
  

installation

Cloud function entry file

cnpm install tcb-router

Function introduced in your cloud files

const TcbRouter = require('tcb-router')

Instructions

exports.main = async (event, context) => {
  const app = new TcbRouter({event})

  // 播放歌曲
  app.router('musicUrl',async(ctx,next) =>{
    ctx.body = await rp(BASE_URL+ `/song/url?id=${event.musicId}`).then((res) =>{
      return res
    })
  })
  // 歌词
  app.router('lyric', async (ctx, next) => {
    ctx.body = await rp(BASE_URL + `/lyric?id=${event.musicId}`).then((res) => {
      return res
    })
  })
  return app.serve()
}

Quite koa write interface and we use the same interface name defined url

use

Interface calls within the file we need
which namecloud the function name to be called, $urlto call routing path

wx.cloud.callFunction({
        name: 'music',
        data: {
          musicId,
          $url: 'lyric'
        }
      }).then((res) =>{
        const lrc = JSON.parse(res.result).lrc
        if(lrc) {
          lyric = lrc.lyric
        }
        this.setData({
          lyric
        })
      })

These are all of the content, the final results visit https://github.com/MrZHLF/wx-music