When using

_format

or

_pretty

query params on a request I get a

400 Bad Request

error: Request:

bash
GET https://api.medplum.com/fhir/R4/CarePlan?_count=30&_offset=0&_format=json&_pretty=true

Response:

json
{
  "resourceType": "OperationOutcome",
  "issue": [
    {
      "severity": "error",
      "code": "invalid",
      "details": {
        "text": "Unknown search parameter: _format"
      }
    }
  ],
  "extension": [
    {
      "url": "https://medplum.com/fhir/StructureDefinition/tracing",
      "extension": [
        {
          "url": "requestId",
          "valueUuid": "58966f33-c251-4e8d-b0f4-d6e72150ba40"
        },
        {
          "url": "traceId",
          "valueUuid": "8b67f061-e6fc-4fc5-865c-df8e611f66ee"
        }
      ]
    }
  ]
}

These params are valid query params according to https://build.fhir.org/http.html#parameters so it should work, anyway I think it would be better if the request doesn't fail because of unrecognized params.

Hi @luis901101 - we're sorry but as you noted, we don't support the _format or _pretty search parameters at this time.

I see, but in this case they are valid parameters according to FHIR, I understand Medplum doesn't support it yet, but the params are valid, and according to the docs Medplum is based on the FHIR API so it's confusing

Fix is under review: https://github.com/medplum/medplum/pull/3993 Sorry for the delay, thanks @luis901101 ! 🙏