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Key Takeaways

All right. So what exactly is JWT? JWT is JSON web token. It is a token that is exchanged over internet over web between two parties. Now this token has some information which is also called the payload and the format of that payload is JSON. That is why it is called JSON web token. As you can see from the definition that this is an open standard and it is used to securely transmit information between two parties as JSON object. Additionally, this token can be digitally signed. Okay. And it can be verified. Now that we understand what is JWT, let's understand when to use JWT. So there are two primary use cases. Number one, authorization. This is the primary use case of JWT. And we have heard and seen JWT being used with OOTH for example. So we can use JWTs in the authorization. The second of course is the information exchange because we have seen in the definition that it is securely transmitting some information between two parties.