NestJS CRUD
Refine provides a data provider for APIs powered with Nest.js CRUD, a module for Nest.js that provides easier ways to build CRUD RESTful APIs.
Good to know:
- This library uses 
axiosto handle the requests. - To learn more about data fetching in Refine, check out the Data Fetching guide.
 
Installation
- npm
 - pnpm
 - yarn
 
npm i @refinedev/nestjsx-crud
pnpm add @refinedev/nestjsx-crud
yarn add @refinedev/nestjsx-crud
Usage
We'll provide the API url to the dataProvider function to create a data provider.
app.tsx
import Refine from "@refinedev/core";
import dataProvider from "@refinedev/nestjsx-crud";
const App = () => (
  <Refine
    dataProvider={dataProvider("<API_URL>")}
  >
    {/* ... */}
  </Refine>
);
Authentication
If your API uses authentication, you can easily provide an axios instance with the authentication headers to the dataProvider function via second argument.
- Using Headers
 - Using Interceptors
 
Using Headers
App.tsx
import { Refine, AuthProvider } from "@refinedev/core";
/**
 * We're using the `axiosInstance` exported from the package
 * But you are free to use your own instance with your own configuration.
 */
import dataProvider, { axiosInstance } from "@refinedev/nestjsx-crud";
const authProvider: AuthProvider = {
  login: async () => {
    // ...
    // We're setting the Authorization header when the user logs in.
    axiosInstance.defaults.headers.common[
      "Authorization"
    ] = `Bearer ${localStorage.getItem("token")}`;
  },
  logout: async () => {
    // ...
    // We're removing the Authorization header when the user logs out.
    axiosInstance.defaults.headers.common["Authorization"] = undefined;
  },
  // ...
};
const App = () => {
  return (
    <Refine
      dataProvider={dataProvider("<API_URL>", axiosInstance)}
      authProvider={authProvider}
    >
      {/* ... */}
    </Refine>
  );
};
Using Interceptors
App.tsx
import { Refine, AuthProvider } from "@refinedev/core";
/**
 * We're using the `axiosInstance` exported from the package
 * But you are free to use your own instance with your own configuration.
 */
import dataProvider, { axiosInstance } from "@refinedev/nestjsx-crud";
axiosInstance.interceptors.request.use(
  (config) => {
    // ...
    // We're setting the Authorization header if it's available in the localStorage.
    const token = localStorage.getItem("token");
    if (token) {
      config.headers["Authorization"] = `Bearer ${token}`;
    }
    return config;
  },
  (error) => {
    return Promise.reject(error);
  },
);
const App = () => {
  return (
    <Refine
      dataProvider={dataProvider("<API_URL>", axiosInstance)}
    >
      {/* ... */}
    </Refine>
  );
};
Example
Run on your local
npm create refine-app@latest -- --example data-provider-nestjsx-crud