JWT is a very important part to guarantee trust and security are in the program. JWT, cause that items such as user data to secure are displayed.

a JWT, in fact, a objects in the JSON that is in the RFC 7519 as a way to display a set of information securely between two persons is defined. This token from a header, a payload, and a sign is formed.

As a simple, a JWT string that has this format are:
header.payload.signature

note: a string is in a """" the. A objects in the JSON with a valid account comes.

to show that JWT, why and how had been built, three example entities we use. The existence of this example includes the user, server application and server authentication. Server authentication, JWT for the user and provides the user with having JWT, etc. can be secured with the program in connection.