lucarp / ra-data-rest-hapi

Rest Hapi provider for react-admin

Rest Hapi Provider For React-Admin

Rest Hapi Provider for react-admin, the frontend framework for building admin applications on top of REST/GraphQL services.

Installation

npm install --save ra-data-rest-hapi

Usage

// in src/App.js
import React from 'react';
import { Admin, Resource } from 'react-admin';
import restHapiProvider from 'ra-data-rest-hapi';

import { PostList } from './posts';

const App = () => (
    <Admin dataProvider={restHapiProvider('http://jsonplaceholder.typicode.com')}>
        <Resource name="posts" list={PostList} />
    </Admin>
);

export default App;

Adding Custom Headers

The provider function accepts an HTTP client function as second argument. By default, they use react-admin's fetchUtils.fetchJson() as HTTP client. It's similar to HTML5 fetch(), except it handles JSON decoding and HTTP error codes automatically.

That means that if you need to add custom headers to your requests, you just need to wrap the fetchJson() call inside your own function:

import { fetchUtils, Admin, Resource } from 'react-admin';
import restHapiProvider from 'ra-data-rest-hapi';

const httpClient = (url, options = {}) => {
    if (!options.headers) {
        options.headers = new Headers({ Accept: 'application/json' });
    }
    // add your own headers here
    options.headers.set('X-Custom-Header', 'foobar');
    return fetchUtils.fetchJson(url, options);
}
const dataProvider = restHapiProvider('http://jsonplaceholder.typicode.com', httpClient);

render(
    <Admin dataProvider={dataProvider} title="Example Admin">
       ...
    </Admin>,
    document.getElementById('root')
);

Now all the requests to the REST API will contain the X-Custom-Header: foobar header.

Tip: The most common usage of custom headers is for authentication. fetchJson has built-on support for the Authorization token header:

const httpClient = (url, options = {}) => {
    options.user = {
        authenticated: true,
        token: 'SRTRDFVESGNJYTUKTYTHRG'
    }
    return fetchUtils.fetchJson(url, options);
}

Now all the requests to the REST API will contain the Authorization: SRTRDFVESGNJYTUKTYTHRG header.

Note: In case of REST verb "CREATE" consider that the response body is the same as the request body but with the object ID injected .

case CREATE:
return { data: { ...params.data, id: json.id } };

This is because of backwards compatibility compliance.

License

This data provider is licensed under the MIT License, and sponsored by marmelab.