Detailed explanation of how Vue packages domain names based on parameter methods

This time I will bring you a detailed explanation of vue's method of packaging domain names based on parameter methods. What are the precautions for vue to package domain names based on parameter methods. The following is a practical case, let's take a look.

During project development, the front-end is very troubled when configuring the back-end api domain name. It often appears:

Local development environment: api-dev.demo.com

Test environment: api-test.demo.com

Online production environment: api.demo.com,

This time it is packaged in the Vue.js project, and I will teach you how to do it:

Use npm run build -- xxx , according to the passed parameter xxx to determine different environments and give different domain name configurations.

1. Modification of /config/dev.env.js in the project:

Added: HOST: '"dev"'

'use strict'
const merge = require('webpack-merge')
const prodEnv = require('./prod.env')
module.exports = merge(prodEnv, {
 NODE_ENV: '"development"',
 HOST: '"dev"'
})

2. Modification of /config/prod.env.js in the project:

Get the parameters passed in:

'use strict'
let HOST = process.argv.splice(2)[0] || 'prod';
console.log(HOST);
module.exports = {
 NODE_ENV: '"production"',
 HOST: '"'+HOST+'"'
}

3. Modification of ajax encapsulation in the project ：

/**
** 设置API接口域名
**/
let apiUrl = '';
// 根据 process.env.HOST 的值判断当前是什么环境
// 命令：npm run build -- test ，process.env.HOST就设置为：'test'
let HOST = process.env.HOST;
HOST = HOST === 'prod' ? '' : '-' + HOST;
apiUrl = 'http://api'+HOST+'.demo.com';
axios.defaults.baseURL = apiUrl;

4. Finally type the command:

npm run build -- test

Note – Yes 2 horizontal bars, followed by parameters, so process.env.HOST will get the parameter 'test',

apiUrl = 'http://api-test.demo.com'

If prod is released and packaged online,npm run build -- prod

apiUrl = 'http://api.demo.com'

I believe you have mastered the method after reading the case in this article. For more exciting information, please pay attention to other related articles on the php Chinese website!

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