# Annotation Type Header

@Retention(CLASS) @Target(PARAMETER) public @interface Header
Binds an interface method parameter to an HTTP request header. `null` argument values skip the header. `Authorization` is the usual carrier for the bearer token argument emitted by `cn1:generate-openapi`.

- ## Required Element Summary

  Required Elements
  Modifier and Type
  Required Element
  Description
  `String`
  `value`

- ## Element Details

  - ### value

    String value