# Preface
This tutorial is based on the "apifm-wxapi" module and teaches you how to quickly implement small program development, so you may need to understand the following knowledge points first:
["Creating HelloWorld Project"](https://www.yuque.com/apifm/doc/hezlrm)
["Use "apifm-wxapi" to quickly develop small programs"](https://www.yuque.com/apifm/doc/mdldsd)
["Register for free to open the backend and obtain an exclusive domain name"](https://www.yuque.com/apifm/doc/qr6l4m)
# Function introduction
1. Mainly to meet the scenarios where classified information, CMS article classification, news information categories, etc. need to be classified;
2. Manage unlimited levels of classification in the background, and freely set the affiliations of large and small classifications;
3. The mini program can read all classified data and display it with just one line of code;
# Enable the "CMS classification information module" module
Log in to the "First Step" registration background, left menu --> Factory settings --> Module management
Find the "CMS Classification Information Module" module, click "Enable Module", then F5 to refresh the background interface, you will see the new menu:
"CMS module" --> "Classification management";
# Mini program code:
```plain
const WXAPI = require('apifm-wxapi')
WXAPI.init('gooking')
Page({
data: {
},
onLoad: function (options) {
},
onShow: function () {
},
cmsCategories() { // Read all category data
WXAPI.cmsCategories().then(res => {
console.log(res)
if (res.code == 0) {
wx.showToast({
title: 'Read successfully',
icon: 'success'
})
} else {
wx.showToast({
title: res.msg,
icon: 'none'
})
}
})
},
cmsCategoryDetail() { // Read the detailed data of a certain category
const cmsCategoryId = 3189 //Record ID in the record
WXAPI.cmsCategoryDetail(cmsCategoryId).then(res => {
console.log(res)
if (res.code == 0) {
wx.showToast({
title: 'Read successfully',
icon: 'success'
})
} else {
wx.showToast({
title: res.msg,
icon: 'none'
})
}
})
},
})
```
> WXAPI.init('gooking') This code links your mini program to your backend, where gooking is your exclusive domain name (please check the chapter about exclusive domain names in the preface);
>
_You can implement the above functions for free in 5 minutes, it’s so simple~ Hurry up and make a blog applet of your own (start with blog classification)_
_No back-end programming is required, as long as you have a good idea, you can quickly implement it! _
Looking forward to your progress!
grateful!