React 配置代理

根目录新建 setupProxy.js 安装 http-proxy 依赖

const proxy = require('http-proxy-middleware');
module.exports = function (app) {
  app.use(proxy.createProxyMiddleware(
    "/api", {
      target: "http:// localhost:3000",
      changeOrigin: true,
      pathRewrite: {
        "^/api": ""
      }
    }
  ));
};