Header

```
@Target(PARAMETER)
@Retention(RUNTIME)
public @interface Header
```
Marker Annotation for denoting a Jackson "injectable value" which should be obtained from a Finagle HTTP Message header parameter.

See Also:

InjectableValue, Finatra User's Guide - JSON Injectable Values, Finatra User's Guide - HTTP Request Field Annotations

- Optional Element Summary
  
  Optional Elements
  Modifier and Type Optional Element Description
  
  java.lang.String value
  An optional field name to use for reading the header parameter from the Finagle HTTP Message.

- Element Detail
  - value
```
java.lang.String value
```
    An optional field name to use for reading the header parameter from the Finagle HTTP Message. When empty, the annotated case class field name will be used to read the header parameter from the Finagle HTTP Message parameters.
    
    Returns:
    
    the name of the header parameter field.
    
    Default:
    
    ""