proxy a request on docusaurus - node.js

Question

// #ts-check
// Note: type annotations allow type checking and IDEs autocompletion
const lightCodeTheme = require('prism-react-renderer/themes/github');
const darkCodeTheme = require('prism-react-renderer/themes/dracula');
/** #type {import('#docusaurus/types').Config} */
const config = {
title: 'title',
tagline: 'tag,
url: 'some-utl',
baseUrl: '/',
onBrokenLinks: 'throw',
onBrokenMarkdownLinks: 'warn',
favicon: 'img/favicon.ico',
organizationName: 'facebook', // Usually your GitHub org/user name.
projectName: 'project', // Usually your repo name.
plugins: [
[
'docusaurus-plugin-openapi',
{
id: 'api',
path: './openapi.json',
routeBasePath: '/api',
},
],
],
presets: [
[
'docusaurus-preset-openapi',
/** #type {import('docusaurus-preset-openapi').Options} */
({
api: {
path: './openapi.json',
},
theme: {
customCss: require.resolve('./src/css/custom.css'),
},
proxy: {
'/api': {
target: 'http://localhost:3000',
},
},
}),
],
],
themeConfig:
/** #type {import('docusaurus-preset-openapi').ThemeConfig} */
({
navbar: {
title: 'title',
logo: {
alt: 'My Site Logo',
src: 'img/logo.svg',
},
items: [{ to: '/api', label: 'API', position: 'left' }],
},
prism: {
theme: lightCodeTheme,
darkTheme: darkCodeTheme,
},
}),
};
module.exports = config;
This is my code for the docusaurus config file but some how the proxy doesn't work