vue simple use of mock

I. mock

1, introduction

mock is an analog data generator designed to help the front-end develop independently of the back-end and help write unit tests. It can simulate Ajax and return simulation data, so that the front end does not need to call the back-end interface, which is convenient for testing.
　

2. vue directly uses mock

step1: install mock

npm install mockjs

Step 2: introduce mock.js directly and write mock interface (Mock.mock).

[mock.js]
//Introduce mock module
import Mock from 'mockjs';

Mock.mock('/login', { //output data
    'name': '@name', //Randomly generated name
    //You can also customize other data
});
Mock.mock('/list', { //output data
    'name': '@name', //Randomly generated name
    'age|10-20': 10
    //You can also customize other data
});

Step 3: introduce the compiled interface js where necessary.

[App.vue]
<template>
    <div>
        <button @click="login">login</button>
        <button @click="list">list</button>
    </div>
    <!--App -->
</template>

<script>
    import mock from './mock.js'
    import axios from 'axios'
    export default {
        methods: {
            login() {
                axios.post("/login").then(response => {
                    if (response.data) {
                        console.log(response.data)
                        alert(response.data.name)
                    }
                })
            },
            
            list() {
                axios.post("/list").then(response => {
                    if (response.data) {
                        console.log(response.data)
                        alert(response.data.name + ',' + response.data.age)
                    }
                })
            }
        }
    }
</script>

<style>

</style>

Step 4: code and screenshot
Directory structure. Create a project using Vue cli (see https://www.cnblogs.com/l-y-h/p/11241503.html).

Complete code

[main.js]
import Vue from 'vue'
import App from './App.vue'

Vue.config.productionTip = false

new Vue({
  render: h => h(App),
}).$mount('#app')


[mock.js]
//Introduce mock module
import Mock from 'mockjs';

Mock.mock('/login', { //output data
    'name': '@name', //Randomly generated name
    //You can also customize other data
});
Mock.mock('/list', { //output data
    'name': '@name', //Randomly generated name
    'age|10-20': 10
    //You can also customize other data
});



[App.vue]
<template>
    <div>
        <button @click="login">login</button>
        <button @click="list">list</button>
    </div>
    <!--App -->
</template>

<script>
    import mock from './mock.js'
    import axios from 'axios'
    export default {
        methods: {
            login() {
                axios.post("/login").then(response => {
                    if (response.data) {
                        console.log(response.data)
                        alert(response.data.name)
                    }
                })
            },
            
            list() {
                axios.post("/list").then(response => {
                    if (response.data) {
                        console.log(response.data)
                        alert(response.data.name + ',' + response.data.age)
                    }
                })
            }
        }
    }
</script>

<style>

</style>

Running screenshot:
Initial picture

Click the login button (randomly generate a person's name)

Click the list button (randomly generate a person's name and age)

3. In the Vue project, use webpack API mocker for mocking

step1: install webpack API mocker

npm i webpack-api-mocker --save-dev

step2: write / mocker/index.js to define the mock interface

[/mocker/index.js]
// Using require to import json files, you can directly access the data
const appData = require('../data.json')

const proxy = {
    'GET /api/login': {
        success: appData.login.success,
        message: appData.login.message
    },
    'GET /api/list': [{
            id: 1,
            username: 'kenny',
            sex: 6
        },
        {
            id: 2,
            username: 'kenny',
            sex: 6
        }
    ],
    'POST /api/post': (req, res) => {
        res.send({
            status: 'error',
            code: 403
        });
    },
    'DELETE /api/remove': (req, res) => {
        res.send({
            status: 'ok',
            message: 'Delete successfully!'
        });
    }
}
module.exports = proxy

step3: modify the vue.config.js configuration file (if not, create a new one under the project)

[vue.config.js]
const path = require('path')
const apiMocker = require('webpack-api-mocker')

module.exports = {
  devServer: {
    before(app) {
　　　　// Note that the custom interface file is referenced here
      apiMocker(app, path.resolve('./mocker/index.js'), {
        proxy: {
          '/repos/*': 'https://api.github.com/',
        },
        changeHost: true,
      })
    }
  }
}

Step 4: define a random set of json data (for testing).

{
    "login": {
      "success": "true",
      "message": "Landing successfully"
    },
    "fileList": {
      "success":"true",
      "list":[
      {"fileId":"1","fileName":"a1.c","content":"content-test1"
      },
      {"fileId":"2","fileName":"a2.c","content":"content-test2"
      },
      {"fileId":"3","fileName":"a3.c","content":"content-test2"
      },
      {"fileId":"4","fileName":"a4.c","content":"content-test2"
      },
      {"fileId":"5","fileName":"a5.c","content":"content-test2"
      },
      {"fileId":"6","fileName":"a8.c","content":"content-test2"
      },
      {"fileId":"7","fileName":"a9.c","content":"content-test2"
      }]
    }
}

Step 5: complete code, screenshot
File directory structure:

Complete code

[main.js]
import Vue from 'vue'
import App from './App.vue'

Vue.config.productionTip = false

new Vue({
  render: h => h(App),
}).$mount('#app')


[App.vue]
<template>
    <div>
        <button @click="login">login</button>
        <button @click="list">list</button>
        <button @click="post">post</button>
        <button @click="remove">remove</button>
    </div>
    <!--App -->
</template>

<script>
    import axios from 'axios'
    export default {
        methods: {
            login() {
                axios.get("/api/login").then(response => {
                    if (response.data) {
                        console.log(response.data)
                        alert(response.data.success + ',' + response.data.message)
                    }
                })
            },
            
            list() {
                axios.get("/api/list").then(response => {
                    if (response.data) {
                        console.log(response.data)
                        let list1 = response.data[0].id + ',' + response.data[0].sex + ',' + response.data[0].username
                        let list2 = response.data[1].id + ',' + response.data[1].sex + ',' + response.data[1].username
                        alert(list1 + '\n' + list2)
                    }
                })
            },
            
            post() {
                axios.post("/api/post").then(response => {
                    if (response.data) {
                        console.log(response.data)
                        alert(response.data.status + ',' + response.data.code)
                    }
                })
            },
            
            remove() {
                axios.delete("/api/remove").then(response => {
                    if (response.data) {
                        console.log(response.data)
                        alert(response.data.status + ',' + response.data.message)
                    }
                })
            }
        }
    }
</script>

<style>

</style>



[data.json]
{
    "login": {
      "success": "true",
      "message": "Login successfully"
    },
    "fileList": {
      "success":"true",
      "list":[
      {"fileId":"1","fileName":"a1.c","content":"content-test1"
      },
      {"fileId":"2","fileName":"a2.c","content":"content-test2"
      },
      {"fileId":"3","fileName":"a3.c","content":"content-test2"
      },
      {"fileId":"4","fileName":"a4.c","content":"content-test2"
      },
      {"fileId":"5","fileName":"a5.c","content":"content-test2"
      },
      {"fileId":"6","fileName":"a8.c","content":"content-test2"
      },
      {"fileId":"7","fileName":"a9.c","content":"content-test2"
      }]
    }
}
  
  
  
[vue.config.js]
const path = require('path')
const apiMocker = require('webpack-api-mocker')

module.exports = {
  devServer: {
    before(app) {
        // path.resolve import mock
      apiMocker(app, path.resolve('./mocker/index.js'), {
        proxy: {
          '/repos/*': 'https://api.github.com/',
        },
        changeHost: true
      })
    }
  }
}



[/mocker/index.js]
// Using require to import json files, you can directly access the data
const appData = require('../data.json')

const proxy = {
    'GET /api/login': {
        success: appData.login.success,
        message: appData.login.message
    },
    'GET /api/list': [{
            id: 1,
            username: 'kenny',
            sex: 6
        },
        {
            id: 2,
            username: 'kenny',
            sex: 6
        }
    ],
    'POST /api/post': (req, res) => {
        res.send({
            status: 'error',
            code: 403
        });
    },
    'DELETE /api/remove': (req, res) => {
        res.send({
            status: 'ok',
            message: 'Delete successfully!'
        });
    }
}
module.exports = proxy