My previous article ** wechat program development series tutorial (I) ** Development environment setup has introduced the development environment setup of wechat server. As the second article in the development series, this article introduces how to develop a simple QUESTION and answer service for your wechat subscription account, which is very fun.

The full code for this series is on my Github:

Github.com/i042416/wec…

The scenario implemented in this article

Followers of your subscription number who send a message to the subscription number will receive the same text reply as they sent the message, prefixed with “Add by Jerry:”.

It’s not interesting, is it? Since the wechat message server of this subscription number is developed by ourselves, we can implement some interesting logic after receiving the text sent by fans on the message server. For example, call some OF the Turing API of artificial intelligence and chat with fans of subscribing numbers like the following:

Here are the steps.

1. Open my github project server.js file:

Implement the following code. This server.js is the entry point to the entire message server, and routesEngine is designed to handle different requests sent by wechat to the message server. Of course, the implementation is in the index.js folder jerryapp/routes.

var express = require('express');

var routesEngine = require('./jerryapp/routes/index.js');

var app = express();

routesEngine(app);

app.listen(process.env.PORT || 3000.function () {

console.log('Listening on port, process.cwd(): ' + process.cwd() );

});
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2. Now let’s implement index.js. When a fan’s text request is sent to the message server, it calls its own nodeJS Module “echoService” for processing.

var request = require('request');

var echoService = require(".. /service/echo.js");

module.exports = function (app) {

app.route('/').post(function(req,res){

echoService(req, res);

});

};
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Open echo.js to see the implementation:

You can see in line 6 below that the prefix “Add by Jerry:” was added to the reply.

Turing services with artificial intelligence