shiny

  export const makeRequest = <Name extends keyof Endpoints>(
    _name: Name,
    method: Endpoints[Name]['method'],
    path: Endpoints[Name]['path'],
    props: {
      data: Endpoints[Name]['clientSends'];
      onSuccess: (json: Endpoints[Name]['serverResponds']) => void;
      onError: (json: any) => void;
    }
  ) => { // ...

  export type Endpoints = {
    createProduct: {
      path: '/api/products.json';
      method: 'POST';
      clientSends: { name: string };
      serverResponds: ProductJSON;
    };
  }