云调用 - 生成小程序码

//配置相关的调用权限
{
  "permissions": {
    "openapi": [
      "wxacode.getUnlimited"
    ]
  }
}

//index.js
// 云调用~生成小程序二维码
const cloud = require('wx-server-sdk')
cloud.init()
exports.main = async(event, context) => {

  var scene = event.scene;
  var page = event.page;
  var width = event.width;

  try {
    // 1、通过云调用生成二维码
    const result = await cloud.openapi.wxacode.getUnlimited({
      scene: scene,
      page: page,
      width: width
    })
    console.log(result)
    // 2、上传图片到云存储
    const upload = await cloud.uploadFile({
      cloudPath: scene + '.jpg',
      fileContent: result.buffer,
    })
    console.log(upload)
    // 3、返回图片地址
    var fileID = upload.fileID;
    console.log("fileId=" + fileID);

    const fileList = [fileID]
    const imgList = await cloud.getTempFileURL({
      fileList: fileList,
    })
    return imgList.fileList
  } catch (err) {
    console.log(err)
    return err
  }
}

onLoad(){
  console.log('onload');


  // 云调用~生成小程序二维码
  wx.cloud.init({
    env: 'gorpeln',
    traceUser: true
  })
  
  var path = 'pages/index/index'
  var width = '430';
  wx.cloud.callFunction({
    name: 'posters',
    data: {
      page: path,
      width: width,
      scene: 'poseterId=1',
    },
    success: res => {
      console.log(res)

      wx.showToast({
        title: '生成成功!',
      })

    },
    fail: error => {
      console.log(JSON.stringify(error))
      wx.showToast({
        title: '生成失败!',
      })
    }
  });
}

npm install --save wx-server-sdk

{
  "permissions": {
    "openapi": [
      "wxacode.getUnlimited"
    ]
  }
}