Client is a client jwt middleware.

FromContext extract auth info from context.

NewContext put auth info into context.

Server is a server auth middleware.

WithClaims with customer claim If you use it in Server, f needs to return a new jwt.Claims object each time to avoid concurrent write problems If you use it in Client, f only needs to return a single object to provide performance.

WithSigningMethod with signing method option.

WithTokenHeader withe customer tokenHeader for client side.

Option is jwt option.