> Sharing data between servers & clients while being able to make sure the data wasn't changed. I think the main use is sharing data between the server and its

> Sharing data between servers & clients while being able to make sure the data wasn't changed. I think the main use is sharing data between the server and itself. The client shouldn’t depend on the internal structure of the token. The token should just be issued by the server to the client, and the client passes it along to subsequent requests to the server.