Hi, Issue created : https://issues.apache.org/jira/browse/CAMEL-24649 PR submitted:; https://github.com/apache/camel/pull/26203
// Pontus On Sat, 5 Sept 2026 at 18:39, Claus Ibsen <[email protected]> wrote: > > Hi > > Yeah you are welcome to do that on the main branch > > On Mon, Aug 31, 2026 at 10:21 AM Pontus Ullgren <[email protected]> wrote: > > > Hello, > > > > We are using the REST OpenApi to publish rest services from a OAS (as > > a consumer). > > > > The OAS spec specifies that error responses, such as 400, 404 and so > > on, should have a JSON body > > that follows a specific schema. > > > > Using a `RestClientRequestValidator` implementation we can achive this > > for client request validation errors. > > > > However when/if the client requests a path or a method on a path that > > is not present in the OAS, > > then there does not seem to be anyway to hook in and change the response > > body. > > > > > > https://github.com/apache/camel/blob/main/components/camel-rest-openapi/src/main/java/org/apache/camel/component/rest/openapi/RestOpenApiProcessor.java#L128-L142 > > > > I would like to propose adding a new SPI, following the same pattern > > as `RestClientRequestValidator` to make it possible to change the > > response > > produced when there is no match for the operation in the OAS. > > > > My proposal is to create a new interface > > > > ``` > > public interface RestOpenApiUnmatchedRequestHandler { > > /** > > * Handles the incoming request that did not match any operation > > in the OpenAPI specification. > > * > > * @param exchange the current exchange > > * @param statusCode the HTTP status code (404 or 405) > > * @param allowedMethods the list of allowed HTTP methods for the > > requested path (empty for 404) > > */ > > void handle(Exchange exchange, int statusCode, List<String> > > allowedMethods); > > } > > ``` > > > > And also a default handler that implements the current behaviour. > > > > Does this sound like a resonable change ? If so I would be happy to > > open a Jira issue and provide a PR with my proposed changes. > > > > Best regards > > Pontus Ullgren > > > > > -- > Claus Ibsen
