Examples to explain how node.js implements WeChat JS-API encapsulation interface

This article mainly introduces the sample code of node.js to implement the WeChat JS-API encapsulation interface. The editor thinks it is quite good, so I will share it with you now and give it as a reference. Let’s follow the editor and take a look.

Wechat JS-API interface

Function:

Used to manage and obtain the access_token produced by WeChat JSSDK, jsapi_ticket and signature

Installation

npm i wechat_interaction_jsapi

Init

let Jsapi = require("wechat_interaction_jsapi");

Usage

WECHAT_APPID, WECHAT_APPSECRET are the developer id and password respectively, which can be found in WeChat Public Platform->Development->Basic Configuration

const jssdk = new Jsapi(WECHAT_APPID, WECHAT_APPSECRET);

1. Get access_token, return the promise object, the resolve callback returns string

jssdk.getAccessToken().then(
  re => console.log(re)
).catch(err => console.error(err));

2. Get jsapi_ticket, return the promise object, the resolve callback returns string

jssdk.getJsApiTicket().then(
  re => console.log(re)
).catch(err => console.error(err));

3. Obtain the JS-SDK permission verification signature, return the promise object, and the resolve callback returns json

jssdk.getSignPackage(url).then(
  re => console.log(JSON.stringify(re))
).catch(err => console.error(err));

Flowchart

1. The first method (parameters appear repeatedly and are clearly organized)

2. The second method (Parameters do not appear repeatedly and the order is not clear)

Front-end calling method

1. Refer to the official documentation

https://mp .weixin.qq.com/wiki?t=resource/res_main&id=mp1421141115

2. Notes:

(1) Confirm that the whitelist has been configured: WeChat Public Platform->Development- >Basic configuration->ip whitelist

(2) Confirm that the JS interface security domain name has been configured: WeChat public platform->Settings->Official account configuration->JS interface security domain name

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