Automatic reply of wechat official account development message

Please refer to Click on

• Because we need to reply to different types of messages , Here we are wechat Under the folder , Create a new one reply.js, It is specially used for automatic reply of messages
• reply.js Expose a function , This function takes a parameter message, Is the message we need to send , Function returns the corresponding template , And send it to wechat server

Code

Code

const template = require('./template');
module.exports = async message => {
    
    // Definition options 
    let options = {
    
        toUserName: message.FromUserName,
        fromUserName: message.ToUserName,
        createTime: Date.now(),
        msgType: 'text'
    }
    // Set the specific content of the reply to the user message 
    let content = '';
    //  Determine the type and content of messages sent by users , Decide what message to return to the user 
    if (message.MsgType === 'text') {
    
        if (message.Content === '1') {
    
            content = ' prosperous , Tonight to eat chicken '
        } else if (message.Content === '2') {
    
            content = ' Land in a box '
        } else if (message.Content === '3') {
    
            //  Reply to text message 
            content = [
                {
    
                    title: 'Nodejs Development ',
                    description: ' WeChat official account development ',
                    picUrl: 'https://ss1.baidu.com/6ONXsjip0QIZ8tyhnq/it/u=1841004364,244945169&fm=58&bpow=121&bpoh=75',
                    url: 'http://nodejs.cn/'
                }, {
    
                    title: 'web front end ',
                    description: ' Here's the latest 、 The strongest technology ',
                    picUrl: 'https://ss0.baidu.com/6ONWsjip0QIZ8tyhnq/it/u=1981851186,10620031&fm=58&s=6183FE1ECDA569015C69A554030010F3&bpow=121&bpoh=75',
                    url: 'http://www.atguigu.com/'
                }];
            options.msgType = 'news'
        } else if (message.Content.match(' Love ')) {
    
            // Fuzzy matching , As long as it contains love 
            content = ' I love you! ~'
        } else {
    
            content = ' What are you talking about , I cannot understand '
        }
    } else if (message.MsgType === 'image') {
    
        content = ' Your picture address is ：' + message.PicUrl
    } else if (message.MsgType === 'voice') {
    
        content = ' Speech recognition results ：' + message.Recognition
    } else if (message.MsgType === 'video') {
    
        content = ' Received the video message '
    } else if (message.MsgType === 'shortvideo') {
    
        content = ' Received a small video message '
    } else if (message.MsgType === 'location') {
    
        content = ' latitude ：' + message.Location_X + ' longitude ：' + message.Location_Y + ' Zoom size ：' + message.Scale + ' details ：' + message.Label
    } else if (message.MsgType === 'link') {
    
        content = ' title ：' + message.Title + ' describe ：' + message.Description + ' website ：' + message.Url
    } else if (message.MsgType === 'event') {
    
        if (message.Event === 'subscribe') {
    
            // Users subscribe to events 
            content = ' Welcome to subscribe ~';
            if (message.EventKey) {
    
                // Scan subscription events with QR code parameters 
                content = ' Welcome to scan QR code '
            }
        } else if (message.Event === 'SCAN') {
    
            // Have followed official account , Enter the official account with parameter QR code in the scanning zone 
            content = ' Have followed official account , Enter the official account with parameter QR code in the scanning zone '
        } else if (message.Event === 'unsubscribe') {
    
            //  User unfocused 
            console.log(' Ruthless clearance ~')
        } else if (message.Event === 'LOCATION') {
    
            //  When the user is in a session , Report the geographic location information once 
            content = ' latitude ：' + message.Latitude + ' longitude ：' + message.Longitude + ' precision ：' + message.Precision
        } else if (message.Event === 'CLICK') {
    
            content = ' Click on the menu ~~~'
        } else if (message.Event === 'VIEW') {
    
            //  User click menu , Jump to other links 
            console.log(' User click menu , Jump to other links ')
        }
    }
    // Add the final reply message content to options in 
    options.content = content;
    // Will eventually xml Data is returned 
    return template(options)
}

The interpretation of the code

• Here we use the imported template template, Click on

1. Defined options Variable , This variable is the common content of all kinds of reply messages
2. Different content , use if Judgment statement to judge
3. It's a function , Different templates will be returned according to different types of messages

Message template of the event

• Because it triggers Message template of event reply It is similar to the message template of automatic reply , I wrote it together

Use recovery function

So this is using reply.js Exposed functions

Let's punch in auth.js This file , Delete unwanted structure , Write the following code

user_data = formatMsg(user_data)
//  Use reply.js
const replyMessage = await reply(user_data)
console.log(replyMessage)
//  Send the message structure to the wechat server 
res.send(replyMessage)   

This is the time , Let's test it again , You will find , succeed