Decode JSON Web Tokens (JWT) in Angular — onthecode | jwt-decode angular
JSONWebTokens(JWT)arecommonlyusedinsinglepageapplicationframeworkslikeAngular[1]forauthenticationandauthorisation.Insituationswhereyouwantgrabthedetailsoftheuserfromthetoken,youneedawaytodecodeityourself.Inthispost,Iwillbeusingjwt-decode[2],whichisanopen-sourcelibrarytodecodeJWTtokens.What’saJSONWebTokenAJWTissimplyalongstringvalue,whichisrepresentsa JSONobject[3] withalltheinformationaboutauser.Often,JWTsareinitiallygeneratedbyAPIsandpassedtotheclienttohelpauthenticatesubsequentrequests. In...
JSON Web Tokens (JWT) are commonly used in single page application frameworks like Angular[1] for authentication and authorisation. In situations where you want grab the details of the user from the token, you need a way to decode it yourself.
In this post, I will be using jwt-decode[2], which is an open-source library to decode JWT tokens.
What’s a JSON Web TokenA JWT is simply a long string value, which is represents a JSON object[3] with all the information about a user. Often, JWTs are initially generated by APIs and passed to the client to help authenticate subsequent requests.
In a typical client-server architecture, the client gets the token from the server and keeps it locally. The token would be embedded it in each request that requires authentication. A JWT token consists of three parts: header, payload and signature.
They are small in size for transmission and are also secure due to the algorithms (HMAC, RSA) used to sign them. These reasons make ...