How Uniapp encapsulates a network request that supports v3

With the continuous development and popularity of mobile applications, a large number of enterprises and individuals need to use network requests in the process of developing mobile applications. Network requests are a very important part of mobile applications. They allow the application to obtain the required data and support various functions of the application.

During the development process, we hope that network requests can be fast, reliable, and easy to encapsulate and expand. In order to solve these problems, we can develop with the help of existing frameworks. Among mobile application frameworks, Uniapp is a very popular cross-platform application development framework. It is developed based on Vue and supports compilation to multiple platforms. In Uniapp, the way of encapsulating network requests is also very flexible and convenient.

In this article, we will introduce how to use Uniapp to encapsulate a network request that supports v3, and explain its principles and implementation steps in detail.

1. What is Uniapp network request

Uniapp is a cross-platform application development framework. It can be developed based on the idea of ​​​​vue and can compile the same code to multiple platforms. superior. In Uniapp, we can use ajax or fetch to make network requests, or we can use some packaged plug-ins to make requests.

2. Uniapp network request encapsulation method

Uniapp provides a very convenient encapsulation method. We can write a request js file in the utils directory of the project, such as: request. js and encapsulate the request in this file. Where network requests are needed in the project, we only need to call the method in the request.js file. In addition, Uniapp also provides some plug-ins and third-party libraries that can help us encapsulate and process network requests more conveniently.

3. How Uniapp supports v3 interface requests

When using Uniapp to encapsulate network requests, we can directly call the uni.request method for request processing. However, if you need to support the v3 request interface, you need to add Authorization information to the request header and encrypt the Authorization information. Below, we will detail how Uniapp supports v3 interface requests.

1. First, we need to add a new method in request.js and set the Authorization information, as follows:

export function requestV3(url, data = {}, method = 'GET', header = {}) {
  const appKey ='appkey'; // 请替换为自己的appkey
  const appSecret ='appsecret'; // 请替换为自己的appsecret
  const timestamp = Math.floor(Date.now() / 1000); 
  header["Authorization"] = `v3 ${appKey}:${timestamp}:${sign(appSecret,timestamp)}`;

  return uni.request({
    url,
    data,
    method,
    header
  })
}

2. Then, we need to write a sign Method to encrypt the Authorization information, as follows:

function sign(secret, timestamp) {
  const signStr = secret + timestamp;
  const sign = uniCrypto.createHmac('sha256', secret).update(signStr).digest('hex').toUpperCase();
  return sign;
}

3. Finally, we need to call the requestV3 method in the vue file to make a network request, as follows:

import {requestV3} from '@/utils/request';

requestV3('https://api.test.com', {id:1},'POST', {}).then(res=>{
    console.log(res);
})
.catch(err=>{
    console.log(err);
})

IV. Summary

Uniapp is a very popular cross-platform application development framework, and its encapsulation method of network requests is also very convenient. In this article, we introduce how Uniapp encapsulates a network request that supports v3, and explain its principles and implementation steps.

With this encapsulation, we can more conveniently carry out the v3 request interface in Uniapp, and can make full use of various convenient features provided by Uniapp to improve development efficiency and application performance.

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