obtain the authentication token and print it

Hello!

I'm starting todevelop an app  that needsLTI.I havealready installedLTI.Thisworks perfectly,and I managed tosharefiles on amoodleto another.

Tofurther developthe application, Ineed to:

1.         Once installedmywebService,itreceives fromMoodle, the requestof use.
2.         thenMoodle, sends thetoken.

       **Ineed mywebServiceprint this tokeninto ahtmlfile. ??