Added REST call to get latest Obs for patient

omod/src/main/java/org/openmrs/module/kenyaemr/web/controller/KenyaemrCoreRestController.java

@@ -3089,4 +3089,39 @@ public Object modifyNUPI(HttpServletRequest request, @PathVariable String nupinu
 
  return ResponseEntity.badRequest().contentType(MediaType.APPLICATION_JSON).body(ret);
  }
+
+ /**
+ * Returns the latest patient Obs value coded concept ID and UUID given the patient UUID and Concept UUID
+ * @param patientUuid
+ * @return value coded concept id and uuid
+ */
+ @CrossOrigin(origins = "*", methods = {RequestMethod.GET, RequestMethod.OPTIONS})
+ @RequestMapping(method = RequestMethod.GET, value = "/latestobs")
+ @ResponseBody
+ public Object getLatestObs(@RequestParam("patientUuid") String patientUuid, @RequestParam("concept") String conceptIdentifier) {
+ SimpleObject ret = SimpleObject.create("conceptId", 0, "conceptUuid", "");
+ if (StringUtils.isBlank(patientUuid)) {
+ return new ResponseEntity<Object>("You must specify a patientUuid in the request!",
+ new HttpHeaders(), HttpStatus.BAD_REQUEST);
+ }
+
+ if (StringUtils.isBlank(conceptIdentifier)) {
+ return new ResponseEntity<Object>("You must specify a concept in the request!",
+ new HttpHeaders(), HttpStatus.BAD_REQUEST);
+ }
+
+ Patient patient = Context.getPatientService().getPatientByUuid(patientUuid);
+
+ Concept concept = Dictionary.getConcept(conceptIdentifier);
+ List<Obs> obsList = Context.getObsService().getObservationsByPersonAndConcept(patient, concept);
+ if (obsList.size() > 0) {
+ // these are in reverse chronological order
+ Obs currentObs = obsList.get(0);
+ ret.put("conceptId", currentObs.getValueCoded().getId());
+ ret.put("conceptUuid", currentObs.getValueCoded().getUuid());
+ }
+
+ return ret;
+
+ }
 }