How to set the http authorization Header Value?

问题

Hey i came across JWT and saw that these tokens are oftenly stored in the http: header -> authorization -> Bearer ""tokenname"".

Now my question is how to actually store the token in this section and with a actual API (no software like postman). And from where does this "Bearer" prefix come from ? Who sets it ?

Already thankful for any advice

来源：https://stackoverflow.com/questions/63230599/how-to-set-the-http-authorization-header-value