Extended Operation with Resource Parameter

[andrewmic...@gmail.com]

Is there documentation of how to create an extended operation that uses a resource parameter?  Does anyone have a working example?  It looks like there are only extended operations with simple parameters here:

http://jamesagnew.github.io/hapi-fhir/doc_rest_operations.html

I've tried a bunch of different things on the server side and on the client, but I haven't gotten it to work yet.  Currently my Location resource provider has this method:

@Operation(name="$match")
public Bundle match(final @OperationParam(name="input") Location toFind) {

I've been using an identical annotation-driven client interface.  I've tried invoking it like this:

LocationClient client = ctx.newRestfulClient(LocationClient.class, url);
Location loc = new Location();
loc.setName("Sample Clinic");
run(client.match(loc));

ca.uhn.fhir.rest.server.exceptions.InvalidRequestException: HTTP 400 Bad Request: Invalid request: The FHIR endpoint on this server does not know how to handle POST operation[$match] with parameters [[]]

Am I don't something wrong on the server side or the client side (or both)?

[andrewmic...@gmail.com]

I changed the client to use the fluent API, and it worked:

final IGenericClient client = ctx.newRestfulGenericClient(url);
final Parameters parms = new Parameters();
final Parameter parm = parms.addParameter();
parm.setName("input");
parm.setResource(loc);
for (final Parameter p : client.operation().onType(Location.class).named("$match").withParameters(parms).execute().getParameter()) {

[James Agnew]

Hi there,

Glad you found a workaround. I just tried to reproduce and it looks like this was a bug with the annotation based client, where it was not able to handle operations that return a raw resource (e.g. Bundle) instead of a Parameters resource. I've just checked in a fix to correct that.

Cheers,

James

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