Json-server + mockjs模拟假数据

Posted 2022-12-09 suedarsam

鉴于这个代码开源出去感觉会被打，还是写个博客吧。

其实操作很简单，只要把文件读取，通过mock转化，再导出文件，然后在json-server填写相应路径即可。

源文件test.json

    "list|1-10": [
        "id|+1": 1
    ],
    "user": 
        "name": "@name",
        "id": "@id"
    

通过mockjs处理

const Mock = require('mockjs');
const fs = require("fs");

let data = fs.readFileSync("test.json", "utf-8");

data = data.toString();
data = JSON.parse(data)
data = Mock.mock(data);
data = JSON.stringify(data);

fs.writeFile('res.json', data, function(err)
    if(err)
        console.error(err);
    
)

得"list":["id":1,"id":2,"id":3],"user":"name":"John Martinez","id":"320000199809111043"

完整json-server配置文件

// server.js
const path = require('path');
const fs = require("fs");
const Mock = require('mockjs');
const jsonServer = require('json-server')

let data = fs.readFileSync("test.json", "utf-8");

data = data.toString();
data = JSON.parse(data)
data = Mock.mock(data);
data = JSON.stringify(data);

fs.writeFile('res.json', data, function(err) 
    if(err)
        console.error(err);
    
    const server = jsonServer.create()
    const router = jsonServer.router(path.join(__dirname, 'res.json'))
    const middlewares = jsonServer.defaults()

    // Set default middlewares (logger, static, cors and no-cache)
    server.use(middlewares)

    // Add custom routes before JSON Server router
    server.get('/echo', (req, res) => 
        res.jsonp(req.query)
    )

    // To handle POST, PUT and PATCH you need to use a body-parser
    // You can use the one used by JSON Server
    server.use(jsonServer.bodyParser)
    server.use((req, res, next) => 
        if (req.method === 'POST') 
            req.body.createdAt = Date.now()
        
        // Continue to JSON Server router
        next()
    )

    // Use default router
    server.use(router)
    server.listen(3000, () => 
        console.log('JSON Server is running')
    )

)

打开localhost:3000😄