Extending Rest Service API

[Martin Spindler]

Hi everyone,

is it possible to extend the rest services for a certain process engine?

My environment:

Apache Tomcat 7

Spring integration

Rest integration

Camunda engine

Now I want to add some rest services to my process engine, like get all usernames or something like that.

Best regards 

Martin Spindler

[Daniel Meyer]

Hi Martin,

you can
(1) embedd the camunda-engine-rest resources inside your application and
combine them with additial JAX-RS resources
(2) add additional resources to camunda-engine-rest.

Form your description I gather that you are already building a custom
application to which you add camunda / spring / rest etc. and want to
add additional JAX-RS resources to the camunda engine rest Application?
(-> 1)
In that case you have to provide a custom JAX-RS application class in
which you add the camunda resources and your custom resources to the
JAX-RS deployment:
See Example:
http://docs.camunda.org/latest/api-references/rest/#overview-embedding-the-api

Note that with 7.1.0 final you will be able to get the camunda resource
list from a constant:
https://github.com/camunda/camunda-bpm-platform/commit/e863d553cec7cee7a1a7967ed349a427524b4076#diff-bcb4ad0f20d75992354b057307284c90R33

Does this help?

Regards,
Daniel

[Martin Spindler]

Hi Daniel,

I want to do something like this:

class ExampleRestServiceImpl extends UserRestServiceImpl implements ExampleRestService

I exend from UserRestServiceImpl and implement my own Interface where I have special resources. Now I want to access to this resources for example: 

[Martin Spindler]

[Martin Spindler]

Hi Daniel,

I want to do something like this:

class ExampleRestServiceImpl extends UserRestServiceImpl implements ExampleRestService

I exend from UserRestServiceImpl and implement my own Interface where I have special resources. Now I want to access to this resources for example: 

   http://localhost:8080/example.camunda.rest-0.0.1-SNAPSHOT/engine/exampleCamundaEngine/user/ ==> thats the camunda resource 

   http://localhost:8080/example.camunda.rest-0.0.1-SNAPSHOT/engine/exampleCamundaEngine/user/userNames ==> thats my resource (userNames)

 I always get an error 405 No resource method found for GET

Am Mittwoch, 26. März 2014 10:39:20 UTC+1 schrieb Martin Spindler:

[Christian Lipphardt]

Hi Martin,

You need to register your own resource class inside the JAX-RS
application class and remove the reference to the overwritten class I think.

Cheers,
Christian

[Martin Spindler]

Hi Christian,

I already have registered my resource class as follows:

@Override

public Set<Class<?>> getClasses() {

Set<Class<?>> classes = new HashSet<Class<?>>();

classes.add(ExampleRestServiceImpl.class);

classes.add(ProcessEngineRestServiceImpl.class);

classes.add(JacksonConfigurator.class);

classes.add(JacksonJsonProvider.class);

classes.add(JsonMappingExceptionMapper.class);

classes.add(JsonParseExceptionMapper.class);

classes.add(ProcessEngineExceptionHandler.class);

classes.add(RestExceptionHandler.class);

return classes;

}

Now I don't know what reference to remove?

Regards

Martin

[Martin Spindler]

Hi Daniel,

how can I add additional resources to camunda-engine-rest. You wrote Point (2), but there is no explanation.

Best regards,

Martin

Am Mittwoch, 26. März 2014 09:48:12 UTC+1 schrieb Daniel Meyer: