React项目配置axios和反向代理和process.env环境配置等问题

npm i axios http-proxy-middleware -S

//  request.ts
import axios from "axios"

declare module 'axios' {
  export interface AxiosResponse<T = any> extends Promise<T> { }
}

export const Service = axios.create({
  timeout: 3000, //延迟时间
  baseURL: process.env.REACT_APP_BASE_API,
  headers: {
    "content-Type": "application/x-www-form-urlencoded",
  },
})

//请求拦截
Service.interceptors.request.use((config) => config)

//响应拦截
Service.interceptors.response.use(
  (response) => response.data,
  (err) => console.log(err)
)

//index.ts
import { Service } from './request'

//获取列表
export function getList(config: { page: string, limit: string }) {
  const params = new URLSearchParams()
  params.append('page', config.page)
  params.append('limit', config.limit)
  return Service({
    method: 'get',
    url: 'api/goodlist',
    params
  })
}

const { createProxyMiddleware } = require('http-proxy-middleware')

module.exports = function (app) {
  app.use([process.env.REACT_APP_BASE_API], createProxyMiddleware({
    target: 'http://localhost:5000/', // 后台服务器地址
    changeOrigin: true,
    pathRewrite: {
      ['^' + process.env.REACT_APP_BASE_API]: '',
    },
  }))
}

"include": [
    "src",
    "config/setupProxy.js"
 ]

import React, { useState, useEffect } from "react"

//导入要使用的接口
import { getList } from "../../api/index";

class About extends React.Component {
  constructor(props: any) {
    super(props)
    this.state = {}
  }

  // 定义方法调接口
  getList() {
    getList({ page: "1", limit: "5" }).then((res) => console.log(res));
  }

  render() {
    return (
      <div className="about">
        <button onClick={this.getList}>获取数据</button>
      </div>
    )
  }
}

export default About

npm install dotenv-cli --save-dev

"start": "node scripts/start.js",
"build": "node --max_old_space_size=4096 scripts/build.js",
"test": "node scripts/test.js",
"build:dev": "dotenv -e .env.development node --max_old_space_size=4096 scripts/build.js",
"build:prod": "dotenv -e .env.production node --max_old_space_size=4096 scripts/build.js",
"build:test": "dotenv -e .env.test node --max_old_space_size=4096 scripts/build.js"

NODE_ENV = 'development'

# just a flag
ENV = 'development'

# base api 这里是代理的时候用到的
REACT_APP_BASE_API = '/dev'