Nodejs realizes mobile phone number registration

With the development of the Internet, more and more applications require users to register before they can be used. The popularity of mobile devices and the trend of mobility have made mobile phone numbers one of the preferred methods for user registration. Therefore, it is very important to master how to use nodejs to register mobile phone numbers.

1. Preparation work

Before using nodejs to implement mobile phone number registration, you first need to install the nodejs environment. Nodejs is a JavaScript running environment based on the Chrome V8 engine. It can run JavaScript code on the server side and is efficient, lightweight, and scalable. For users who do not have nodejs installed, you can download and install it from the official website https://nodejs.org/.

2. Implementation process

1. Create project

Enter the following command on the command line to create a nodejs project named "phone_register".

$ mkdir phone_register 
$ cd phone_register 
$ npm init -y 

2. Installing dependencies

In the root directory of the project, enter the following commands to install express, body-parser, morgan and other dependency packages.

$ npm install express body-parser morgan 

3. Create project file

In the project root directory, create a main file named "app.js". In this file, use the following code to create a basic express application.

// app.js
const express=require('express')
const app=express()

app.listen(3000,()=>{
   console.log('Server is running on port 3000.')
})

4. Writing interface

After completing the creation of the basic application, you need to write an API interface to implement the mobile phone number registration function. The interface includes functions such as mobile phone number verification, password verification, and saving registration information.

// 引入所需模块
const express=require('express')
const bodyParser=require('body-parser')
const morgan=require('morgan')

const app=express()

// 用于打印请求日志
app.use(morgan('combined'))

// 创建application/json解析器
app.use(bodyParser.json())

// 用于处理x-www-form-urlencoded请求体
app.use(bodyParser.urlencoded({extended:true}))

// 手机号码验证
function checkMobile(req,res,next){
   const mobile=req.body.mobile
   if(!mobile){
      return res.status(400).json({message:'手机号码不能为空!'})
   }

   if(!/^1[34578]d{9}$/.test(mobile)){
      return res.status(400).json({message:'请输入正确的手机号码!'})
   }

   next()
}

// 密码验证
function checkPassword(req,res,next){
   const password=req.body.password
   if(!password){
      return res.status(400).json({message:'密码不能为空!'})
   }

   if(password.length<6){
      return res.status(400).json({message:'密码长度不能小于6位!'})
   }

   next()
}

// 注册接口
function register(req,res){
   const mobile=req.body.mobile
   const password=req.body.password

   // TODO: 保存注册信息到数据库

   res.status(200).json({message:'注册成功!'})
}

// 注册路由
app.post('/register',[checkMobile,checkPassword],register)

app.listen(3000,()=>{
   console.log('Server is running on port 3000.')
})

In this code, checkMobile() and checkPassword() represent mobile phone number verification and password verification respectively.

The register() function is used to save registration information and return a response in json format.

Finally, use the app.post() function to create a registered RESTful API route match.

5. Testing

After using NodeJS to implement the mobile phone number registration function, testing is required to ensure the correctness and stability of the function.

Use tools such as Postman to simulate submitting a set of json data, as shown below:

{
   "mobile":"15112345678",
   "password":"123456"
}

Send a POST request to the registration API address http://localhost:3000/register, and the result is as follows Display:

{
   "message": "注册成功!"
}

At this point, the function of registering a mobile phone number using nodejs is completed.

3. Summary

This article introduces how to use nodejs to implement the mobile phone number registration function. First, you need to prepare a complete nodejs environment, and then install the required dependency packages. Next, create a main file and write an API interface to implement functions such as mobile phone number verification, password verification, and saving registration information. Finally, use tools such as Postman to test to ensure the correctness and stability of the function.

Nodejs is a JavaScript running environment based on the Chrome V8 engine. It can run JavaScript code on the server side and is efficient, lightweight, and scalable. By learning how to use Nodejs to implement mobile phone number registration, you can have a deeper understanding of Nodejs technology and improve your development skills.

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