[CAMEL-15163] Rest DSL Support for defaulting values for request headers

• Type: Improvement
• Status: Resolved
• Priority: Minor
• Resolution: Fixed
• Affects Version/s: 2.25.1, 3.x
• Fix Version/s: 3.4.0
• Component/s: rest
• Estimated Complexity: Unknown
• Assignee: Unassigned
• Reporter: Bob Paulin
• Created: 08/Jun/20 20:01
• Updated: 17/Jun/20 05:20
• Resolved: 17/Jun/20 05:20

Description

Within https://issues.apache.org/jira/browse/CAMEL-9312 support was added for defaulting query string values in the REST DSL. Other frameworks such as spring mvc also provide support for this in the request header fields:

@RequestMapping(value = "/test") 
public String test(@RequestHeader(value="X-SOME-HEADER", defaultValue="A VALUE") String someHeader)

 In camel this is possible however when the route is called the default value is not set from the rest definition.

.param()
  .name("X-SOME-HEADER")
  .type(RestParamType.header)
  .defaultValue("A VALUE")
.endParam()