addRefreshAuthToDataProvider

This helper function wraps an existing dataProvider to support authentication token refreshing mechanisms.

Usage

Use addRefreshAuthToDataProvider to decorate an existing data provider. In addition to the base provider, this function takes a function responsible for refreshing the authentication token if needed.

Here is a simple example that refreshes an expired JWT token when needed:

// in src/refreshAuth.js
import { getAuthTokensFromLocalStorage } from './getAuthTokensFromLocalStorage';
import { refreshAuthTokens } from './refreshAuthTokens';

export const refreshAuth = () => {
    const { accessToken, refreshToken } = getAuthTokensFromLocalStorage();
    if (accessToken.exp < Date.now().getTime() / 1000) {
        // This function will fetch the new tokens from the authentication service and update them in localStorage
        return refreshAuthTokens(refreshToken);
    }
    return Promise.resolve();
}

// in src/dataProvider.js
import { addRefreshAuthToDataProvider } from 'ra-core';
import simpleRestProvider from 'ra-data-simple-rest';
import { refreshAuth } from 'refreshAuth';

const baseDataProvider = simpleRestProvider('http://path.to.my.api/');

export const dataProvider = addRefreshAuthToDataProvider(baseDataProvider, refreshAuth);

Then, pass the decorated provider to the <CoreAdmin> component

// in src/App.js
import { CoreAdmin } from 'ra-core';
import { dataProvider } from './dataProvider';

export const App = () => (
    <CoreAdmin dataProvider={dataProvider}>
        {/* ... */}
    </CoreAdmin>
)

Tip: We usually wrap the auth provider’s methods in the same way. You can use the addRefreshAuthToAuthProvider helper function to do so.

provider

The first argument must be a valid dataProvider object - for instance, any third-party data provider.

// in src/dataProvider.js
import { addRefreshAuthToDataProvider } from 'ra-core';
import simpleRestProvider from 'ra-data-simple-rest';

const baseDataProvider = simpleRestProvider('http://path.to.my.api/');

export const dataProvider = addRefreshAuthToDataProvider(baseDataProvider, [ /* refreshAuth function */ ]);

refreshAuth

The second argument is a function responsible for refreshing the authentication tokens if needed. It must return a promise.

import jsonServerProvider from "ra-data-json-server";
import { refreshAuth } from "./refreshAuth";

export const dataProvider = addRefreshAuthToDataProvider(baseDataProvider, refreshAuth);

See Also

• addRefreshAuthToAuthProvider