Before we generate a token, you'll want to create some data to pass in the JWT payload and a secret to sign the token using the HS256 algorithm. This comes from the PyJWT package: import jwt. Switch (output.Length % 4) // Pad with trailing '='sĬase 0: break // No pad chars in this caseĬase 2: output += "=" break // Two pad charsĬase 3: output += "=" break // One pad charĭefault: throw new System. The first thing you'll need to do is to import the jwt object. Output = output.Replace('_', '/') // 63rd char of encoding Output = output.Replace('-', '+') // 62nd char of encoding Thanks to Kalten, here's the solution for my case: JwtTokenContent ReadJwtTokenContent(string token) (content is eyJJZCI6IjUyYjg3ZTUwLTViYmMtNDE0Ny1iOTMwLWY2ZGI0ZTUyNDEwYiIsIlVzZXJuYW1lIjoiZGF0dm1Ab3V0bG9vay5jb20iLCJpc3MiOiJodHRwczovL2xvY2FsaG9zdDo0NDMyMi8ifQ) The final part is the signature, and it helps you ensure that a given token wasn't tampered with because signing JWTs requires either a secret or a public/private key pair agreed on previously. In a login scenario, this would be information about the user. The input is not a valid Base-64 string as it contains a non-base 64 character, more than two padding characters, or an illegal character among the padding characters.ĮyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9.eyJJZCI6IjUyYjg3ZTUwLTViYmMtNDE0Ny1iOTMwLWY2ZGI0ZTUyNDEwYiIsIlVzZXJuYW1lIjoiZGF0dm1Ab3V0bG9vay5jb20iLCJpc3MiOiJodHRwczovL2xvY2FsaG9zdDo0NDMyMi8ifQ.4wKxDCwQ6onvNA_atndSitGjufR-tXutWq-tRNhqKzc While the payload (or the body) carries information about a given asset. circleci Fix circle config path ( 127) last year. auth0 / jwt-decode Public 340 2.9k Code Issues Pull requests 1 Actions Security Insights master 1 branch 24 tags Code stevehobbsdev Add browser dropdown to bug report form ( 144) f0524f3 on Apr 27 148 commits. How can I decode the payload? It doesn't seem to be just a base64 string. GitHub - auth0/jwt-decode: Decode JWT tokens useful for browser applications. ![]() Return JsonSerializer.Deserialize(jsonPayload) Exception here, it's not a valid base64 string If you want to decode a JWT, fill input field with the JWT that you want to decode. JwtTokenContent ReadJwtTokenContent(string token) If you want to generate a JWT, fill input field with the payload. If you are concerned about privacy, youll be happy to know the token. See the snippets page for code snippets on how to decode a token on your own computer. Tooltips help explain the meaning of common claims. I think parsing the payload content should be simple enough to just write it in a method. You can always decode and inspect your JWTs locally on your own machine. ![]() I'd like to know a simple way to read the token payload content without adding additional dependency because I don't need the other information and don't need to validate the token. ![]() I am writing the client app with Blazor that has access to a JWT.
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