cra-template-jam/template/src/app/api.ts

A quick start Create React App template with React Router, Redux Toolkit, TypeScript, Styled Components and custom ESlint configurations

import { createApi, fetchBaseQuery } from '@reduxjs/toolkit/query/react';
import { BASE_API_URL } from './config';

export const api = createApi({
    reducerPath: 'api',
    baseQuery: fetchBaseQuery({
        baseUrl: BASE_API_URL,
    }),
    endpoints: () => ({}),
});

export const {} = api;