mocker-api 是一个为 REST API 建立 mock 的 webpack-dev-server 中间件。 当您尝试在没有实际的 REST API 服务器的状况下,测试您的应用程序时,这将会颇有帮助。css
npm install mocker-api --save-dev
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定义API,假设咱们讲API放到一个独立文件 mocker.js
中, 下面咱们定义四个 API
,每一个 API
都放到 json
的 key
和 value
中,以下:html
const proxy = { 'GET /api/user': {id: 1, username: 'kenny', sex: 6 }, 'GET /api/user/list': [ {id: 1, username: 'kenny', sex: 6 }, {id: 2, username: 'kenny', sex: 6 } ], 'POST /api/login/account': (req, res) => { const { password, username } = req.body; if (password === '888888' && username === 'admin') { return res.send({ status: 'ok', code: 0, token: "sdfsdfsdfdsf", data: {id: 1, username: 'kenny', sex: 6 } }); } else { return res.send({status: 'error', code: 403 }); } }, 'DELETE /api/user/:id': (req, res) => { console.log('---->', req.body) console.log('---->', req.params.id) res.send({ status: 'ok', message: '删除成功!' }); } } module.exports = proxy; 复制代码
上面的 key
比较特殊,由 methd
和 path
组合,中间一个空格间隔,如:GET /api/user
。value
能够是 json
或者 函数
。webpack
⚠ ️不依赖于webpack和webpack-dev-server。git
# 全局安装依赖. npm install mocker-api -g # 运行服务 mocker ./mocker/index.js 复制代码
或者您能够将 mocker-api 在当前项目安装,配置运行脚本命令。github
{ "name": "base-example", "scripts": { + "api": "mocker ./mocker" }, "devDependencies": { + "mocker-api": "^1.6.4" }, "license": "MIT" } 复制代码
要在你的 Webpack
项目中使用 api mocker
,只需将设置选项,添加到你的 webpack-dev-server 选项中便可:web
改变你的配置文件,告诉dev服务器在哪里查找文件:webpack.config.js。express
const path = require('path'); const HtmlWebpackPlugin = require('html-webpack-plugin'); const CleanWebpackPlugin = require('clean-webpack-plugin'); + const apiMocker = require('mocker-api'); + const mocker = require('./mocker'); module.exports = { entry: { app: './src/index.js', print: './src/print.js' }, devtool: 'inline-source-map', + devServer: { + ... + before(app){ + apiMocker(app, path.resolve('./mocker/index.js'), { + proxy: { + '/repos/*': 'https://api.github.com/', + '/:owner/:repo/raw/:ref/*': 'http://127.0.0.1:2018' + }, + changeHost: true, + }) + } + }, plugins: [ new CleanWebpackPlugin(['dist']), new HtmlWebpackPlugin({ title: 'Development' }) ], output: { filename: '[name].bundle.js', path: path.resolve(__dirname, 'dist') } }; 复制代码
让咱们添加一个脚原本轻松运行开发服务器:npm
修改 package.json
json
{ "name": "development", "version": "1.0.0", "description": "", "main": "webpack.config.js", "scripts": { "test": "echo \"Error: no test specified\" && exit 1", "watch": "webpack --progress --watch", + "start": "webpack-dev-server --open", "build": "webpack" }, "keywords": [], "author": "", "license": "ISC", "devDependencies": { "clean-webpack-plugin": "^0.1.16", "css-loader": "^0.28.4", "csv-loader": "^2.1.1", "file-loader": "^0.11.2", "html-webpack-plugin": "^2.29.0", "style-loader": "^0.18.2", "webpack": "^3.0.0", "xml-loader": "^1.2.1" } } 复制代码
运行下面命令,跑起来,经过工具测试一下你模拟的API是否能返回结果。api
npm run start
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const express = require('express'); + const path = require('path'); + const apiMocker = require('mocker-api'); const app = express(); + apiMocker(app, path.resolve('./mocker/index.js')) app.listen(8080); 复制代码