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@tshio/redux-api-auth-middleware

v2.0.1

Published

This little tool will help you work with request authorization and token renewal.

Downloads

276

Readme

Redux API Auth Middleware

This little tool will help you work with request authorization and token renewal.

Use it to add Authentication header to your API requests and/or refresh your expired JWT/OAuth/custom tokens.

Installation

Using yarn:

$ yarn add @tshio/redux-api-auth-middleware

Using npm:

$ npm install --save @tshio/redux-api-auth-middleware

Then, to enable authMiddleware, use applyMiddleware:

import { applyMiddleware, createStore } from 'redux';

import { apiMiddleware } from 'redux-api-middleware';
import { createAuthMiddleware } from '@tshio/redux-api-auth-middleware';

import { appReducer } from 'app/app.reducer'; // your main reducer

// See config details below.
const authMiddleware = createAuthMiddleware({
  authConfig: {
    header: 'Authorization',
    type: 'Bearer',
  },
  refreshConfig: {
    endpoint: '/refresh-token',
    failedAction: { type: 'LOGOUT' },
    actionDefinition: ({ refreshToken, endpoint }) => refreshTokenAction(refreshToken, endpoint), //not required
  },
});
const middlewares = [authMiddleware, apiMiddleware];
const store = createStore(appReducer, applyMiddleware(...middlewares));

and add authReducer to your app:

import { combineReducers } from 'redux'
import { createAuthReducer } from '@tshio/redux-api-auth-middleware';

// See config details below.
const authReducer = createAuthReducer({
  getExpirationTimestamp: payload => payload.expiration,
});

export default combineReducers({
  auth: authReducer,
  ... // rest of your reducers
})

Usage

To use this middleware you have to save your accessToken and refreshToken using setTokenAction.

import { setTokenAction } from '@tshio/redux-api-auth-middleware';
import Component from './component';

const mapDispatchToProps = dispatch => ({
  onSignIn: ({accessToken, refreshToken}) => dispatch(setTokenAction({ access_token: accessToken, refresh_token: refreshToken, expires_in: 1555055916 }));
}

export default connect(
  null,
  mapDispatchToProps,
)(Component);

After that all you need to do is to dispatch an RSAA action, like the one below.

import { RSAA } from 'redux-api-middleware';

[RSAA]: {
  types: ['GET_USERS_API_REQUEST', 'GET_USERS_API_SUCCESS', 'GET_USERS_API_FAILURE'],
  endpoint: '/users',
  method: 'GET',
},

If for some reason you want to skip the middleware you have to add skipAuth key to your action.

import { RSAA } from 'redux-api-middleware';

[RSAA]: {
  types: ['LOGIN_REQUEST', 'LOGIN_SUCCESS', 'LOGIN_FAILURE'],
  endpoint: '/auth/login',
  method: 'POST',
  body: {
    username: '[email protected]',
    pass: 'terces',
  },
  skipAuth: true,
},

To clear the token use clearTokenAction.

import { clearTokenAction } from '@tshio/redux-api-auth-middleware';
import Component from './component';

const mapDispatchToProps = dispatch => ({
  onSignOut: () => dispatch(clearTokenAction());
}

export default connect(
  null,
  mapDispatchToProps,
)(Component);

Configuration

Auth middleware

| Key | Option name | Default value | Type | Role | | ------------- | ---------------- | ------------- | ------------- | ------------------------------------------------------------------------------ | | authConfig | - | - | - | Configuration for adding authorization headers | | | header | Authorization | string | Name of the header passed to every request that needs authorization | | | type | Bearer | string | Type of the token | | refreshConfig | - | - | - | Configuration for token refresh | | | endpoint | undefined | string | API endpoint for token renewal | | | failedAction | undefined | ReduxAction | Action that will be dispatched after failed token request | | | actionDefinition | undefined | ReduxAction | Function that will return RSAA Action that will be dispatched to refresh token |

Auth reducer

| Option name | Default value | Type | Role | | ---------------------- | ------------------------------- | ------------------ | ----------------------------------------------------------------------------------------------------------------------------------- | | getExpirationTimestamp | calculateJWTTokenExpirationDate | function<number> | Function returning expiration timestamp for requested token. Defaults to a function that sums iat and exp keys from JWT payload |

There are two built in functions for calculating token expiration timestamp, one for JWT and the other one for OAuth2. See examples below.

JWT Example

Function takes payload below, parses the access_token and looks for iat and exp keys to sum them. If they are not there it returns 0.

API Payload

{
  "access_token": "eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9.eyJpYXQiOjQxMzM5ODA3OTksImV4cCI6MzYwMH0.XzogySsPK2_KU4uceVR1rwwKa31_5Ur9zhqCaBYVzUw",
  "refresh_token": "..."
}

Reducer Configuration

import { calculateJWTTokenExpirationDate } from '@tshio/redux-api-auth-middleware';

const authReducer = createAuthReducer({
  getExpirationTimestamp: calculateJWTTokenExpirationDate,
});

OAuth2 Example

Function takes payload below and adds expires_in value to current timestamp.

API Payload

{
  "access_token": "MTQ0NjJkZmQ5OTM2NDE1ZTZjNGZmZjI3",
  "token_type": "bearer",
  "expires_in": 3600,
  "refresh_token": "IwOGYzYTlmM2YxOTQ5MGE3YmNmMDFkNTVk",
  "scope": "create"
}

Reducer Configuration

import { calculateOauthTokenExpirationDate } from '@tshio/redux-api-auth-middleware';

const authReducer = createAuthReducer({
  getExpirationTimestamp: calculateOauthTokenExpirationDate,
});