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reindex-js is a client library that makes using Reindex ( easier. It provides support for authentication, including social login. It also exposes hooks for using Reindex with Relay and other libraries.

reindex-js is a universal JavaScript library, so it works in the browser, React Native and Node.js. However, log in with social providers (the login() method) is only available in the browser. Log in with Auth0 (loginWithToken()) is also supported on React Native.


npm install reindex-js


Import the library

import Reindex from 'reindex-js'

Create an instance.

const reindex = new Reindex('');


new Reindex(url: String) -> Reindex

Create a new instance of Reindex. Usually only one instance is needed so you can create it in one model and export.

import Reindex from 'reindex';

const reindex = new Reindex('');
export default reindex;

In browser environment, if token was stored in localStorage, it will be retrieved and stored inside the instance.


.login(providerName: String) -> Promise

Browser only

Attempt to login with a providerName (google, facebook, twitter or github). The provider should be set up and enabled in your Reindex app.

Opens a browser window with provider's login screen, where the user needs to grant your application permissions to read their data. If everything succeeds the promise returned is resolved with an object with following properties:

  • token - JSON Web Token for the user,
  • user - information about the user.

If the log in fails, the promise is reject with an error.

The token is stored in the Reindex instance and in localStorage of the browser.

Emits login and tokenChange events.

.loginWithToken(providerName: String, loginToken: String)

Attempt to login to Reindex with an Auth0 id_token. Reindex validates the token on the backend side and logs the user in. Like login, sets token in the Reindex object and stores it in localStorage (if available).

Emits login and tokenChange events.

Example usage with Auth0 Lock:

const reindex = new Reindex(reindexURL);
const lock = new Auth0Lock(auth0ClientID, auth0Domain);, profile, id_token) => {
  reindex.loginWithToken('auth0', id_token);
.logout() -> Promise

Browser only

Clears token from the instance and localStorage. Resolve promise with map of token and user, both of which are null.

Emits logout and tokenChange events.

.isLoggedIn() -> Boolean

Returns true if there is a token stored inside the instance.

.setToken(token: String)

Set the token manually. Can be used when custom authentication provider is used or on server.

Emits tokenChange event.


.query(query: String, variables: Object) -> Promise

Queries the Reindex backend. Returns Promise that resolves if HTTP request succeeded, rejects otherwise.

.getAuthenticationHeaders() -> Object

Returns map of header name to value that need to be used to authenticate request with Reindex backend.

Usage with Relay

.getRelayNetworkLayer(timeout: int, retryDelays: int) -> RelayNetworkLayer

Returns RelayNetworkLayer. Usage:

import Relay from 'react-relay';
import Reindex from 'reindex-js';

const reindex = new Reindex('');



Reindex extends EventEmitter, so it can be (un)subscribed with on and off. Here are the possible events:

login (loginResponse: Object)

When login succeded. loginResponse is the response from backend.


When logout succeded.

tokenChange (token: String)

When token changes. token is the new token.

Compiling manually

To build UMD bundle:

npm run build:umd


Reindex JavaScript client library




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