Axios JWT Refresh

Simple npm package that lets you refresh your access token with axios Interceptor. Simple and Elegant.

Npm:

npm i axios-refresh-jwt

Yarn:

yarn add axios-refresh-jwt

Usage:

Define Storage Object:

Basically, this storage object is used by axios-jwt-refresh to store, retrieve, and update the tokens for API calls. If you're using TypeScript, consider creating a Storage object from IStorage type at axios-jwt-refresh/types

Storage Object

import {IStorage} from 'axios-jwt-refresh/types'

const Storage: IStorage  = {
    setTokens: (tokens) => {
        localStorage.setItem("ACCESS_TOKEN", tokens.accessToken)
        localStorage.setItem("REFRESH_TOKEN", tokens.refreshToken)
    },

    updateAccessToken: ({accessToken}) => {
        localStorage.setItem("ACCESS_TOKEN", accessToken)
    },

    removeTokens: () => {
        localStorage.removeItem("ACCESS_TOKEN")
        localStorage.removeItem("REFRESH_TOKEN")
    },

    getTokens: () => {
        return {
            accessToken: localStorage.getItem("ACCESS_TOKEN"),
            refreshToken: localStorage.getItem("REFRESH_TOKEN")
        }
    }
}

API Client

requestInterceptor accepts the following params:

• axiosInstance: actual axios instance.
• tokenStorage: token storage class. The method signature is as above. It must be of type: IStorage
• onTokenSuccess: called when the new token request succeeds. axiosConfig, accessToken are callback params.
• onTokenFailure: called when the new token request fails. tokenStorage, axiosConfig are callback params.
• getNewToken: async function that handles getting a new token with refreshToken. Note that this mustn't be the call from axiosInstance to prevent the request looping.
• expiryKey: expiry key in token payload. You can check the decoded token right here. If unset, the default value is exp.
• authHeaderName: auth header to use for subsequent requests. If unset, the default value isAuthorization.
• tokenPrefix: token prefix string. If unset, the default value is Bearer.

import axios from 'axios';

import requestInterceptor from 'axios-jwt-refresh'

const API_URL = "http://foo.bar/api"

const api = axios.create({
    baseURL: API_URL
})

requestInterceptor({
    axiosInstance: api, // axios instance
    tokenStorage: Storage, // your preferred storage, IStorage type
    expiryKey: "exp", // default, optional
    authHeaderName: "Authorization", // default, optional
    tokenPrefix: "Bearer", // default, optional
    getNewToken: async ({refreshToken}) => { // must be instantiated from axios to prevent infinite loop
        const resp = await axios.post(`${API_URL}/token/refresh/`, {
            "refresh": refreshToken
        })
        const token = resp.data.access
        return token
    },
    onTokenFailure: ({tokenStorage, axiosConfig}) => { // called when refreshing token fails
        tokenStorage.removeTokens()
        window.location.reload()
    },
    onTokenSuccess: ({axiosConfig, accessToken}) => { // called when obtaining a token succeeds
        console.log("Token successfully updated")
    
        if(axiosConfig.url == "/token/verify/" && accessToken){
            axiosConfig.data = {
                "token": accessToken
            }
        }
    }
})

export default api;