[CAMEL-20490] camel-openapi-java - Empty server url due to X-Forward-Headers

• Type: Improvement
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 4.5.0
• Component/s: camel-rest-openapi
• Estimated Complexity: Unknown
• Assignee: Claus Ibsen
• Reporter: Claus Ibsen
• Created: 29/Feb/24 09:42
• Updated: 01/Mar/24 09:53
• Resolved: 01/Mar/24 09:53

Description

This looks a bit mysterious as restConfiguration has `useXForwardHeaders=true` as default which causes the url to be empty or just the base path (but you can have / as base-path)

{
  "openapi" : "3.0.0",
  "info" : { },
  "servers" : [ {
    "url" : ""
  } ],
  "paths" : {
    "/account" : {
      "get" : {
        "operationId" : "get-c5d3",
        "responses" : {
          "200" : {
            "description" : "Output type",
            "content" : {
              "application/json" : {
                "schema" : {
                  "$ref" : "#/components/schemas/Account"
                }
              }
            }
          }
        }
      }
    }
  },
  "components" : {
    "schemas" : {
      "Account" : {
        "type" : "object",
        "properties" : {
          "accountNumber" : {
            "type" : "string"
          },
          "accountName" : {
            "type" : "string"
          },
          "balance" : {
            "type" : "number",
            "format" : "double"
          }
        }
      }
    }
  }
}

Notice how the server urls is "" (empty).

But the server url has been computed to http://0.0.0.0:8080 by default prior to setupXForwardedHeaders is invoked.

I am not sure why this line is as-is
https://github.com/apache/camel/blob/f234dae17fa1c6090e13ffd898c8287bf149b57f/components/camel-openapi-java/src/main/java/org/apache/camel/openapi/RestOpenApiSupport.java#L136

Issue Links

• duplicates: CAMEL-19925 openapi-java not showing full url server
• relates to: CAMEL-20487 REST API generator issue with typeOut
• relates to: CAMEL-20488 camel-openapi-java - Drop support for openapi v2
• relates to: CAMEL-20489 camel-openapi-java - Rest configuration for servers
• links to: GitHub Pull Request #13359