/// <summary>
/// save patient demography to file/Azure Storage
/// </summary>
/// <param name="savePath"></param>
/// <param name="id"></param>
/// <returns></returns>
public PatientViewModel GetPatient(string savePath, string id, bool saveToFile = true)
{
string getPatientUrl = AppSettings.FhirAPIBaseUrl + string.Format("Patient/{0}", id);
//call API to get patient list
string response = APIHelper.CallFhirApi(BearerToken, getPatientUrl);
string fhirXml = RemoveAllEmptyNode(response);
if (saveToFile)
{
if (AppSettings.StoredPatientInAzure)
{
//stored the patient information into azure storage to demo
MemoryStream stream = new MemoryStream();
StreamWriter writer = new StreamWriter(stream);
writer.Write(fhirXml);
writer.Flush();
stream.Position = 0;
AzureStorageHelper.UploadBlobToAzure("", string.Format("{0}.xml", id), stream);
}
else
{
//stored the patient information into local folder to demo
string saveFilePath = Path.Combine(savePath, string.Format("{0}.xml", id));
File.WriteAllText(saveFilePath, fhirXml);
}
}
FhirXmlParser fxp = new FhirXmlParser();
var patient = fxp.Parse <Hl7.Fhir.Model.Patient>(fhirXml);
return(ConvertFhirToViewModel(patient));
}
/// <summary>
/// Search pathent from API
/// </summary>
/// <param name="family"></param>
/// <param name="given"></param>
/// <param name="dob"></param>
/// <param name="gender"></param>
/// <returns></returns>
public List <PatientViewModel> SearchPatients(string _id, string family, string given, string birthdate, string gender, string MRN)
{
List <PatientViewModel> results = new List <PatientViewModel>();
string searchPatientUrl = AppSettings.FhirAPIBaseUrl + "Patient?";
if (!string.IsNullOrEmpty(_id))
{
searchPatientUrl += string.Format("_id={0}", _id);
}
else
{
if (!string.IsNullOrEmpty(family))
{
searchPatientUrl += string.Format("family={0}", family);
}
if (!string.IsNullOrEmpty(given))
{
searchPatientUrl += "&" + string.Format("given={0}", given);
}
if (!string.IsNullOrEmpty(birthdate))
{
searchPatientUrl += "&" + string.Format("birthdate={0}", birthdate);
}
if (!string.IsNullOrEmpty(gender))
{
searchPatientUrl += "&" + string.Format("gender={0}", GetGenderFromHl7(gender).ToString().ToLower());
}
if (!string.IsNullOrEmpty(MRN))
{
searchPatientUrl += "&" + string.Format("identifier={0}", MRN);
}
searchPatientUrl = searchPatientUrl.Replace("?&", "?");
}
//call API to get patient list
string response = APIHelper.CallFhirApi(BearerToken, searchPatientUrl);
if (CheckIfNotEmptyBundle(response))
{
FhirXmlParser fxp = new FhirXmlParser();
var bundle = fxp.Parse <Hl7.Fhir.Model.Bundle>(RemoveAllEmptyNode(response));
results = ExtraFhirResourceFromBundle(bundle, "Patient").Select(r => ConvertFhirToViewModel((Patient)r)).ToList();
//ConvertFhirBundleToViewModel(bundle);
}
return(results.OrderBy(p => p.FullName).ToList());
}
/// <summary>
/// get patient details information. (include demographic/encounter/observations...)
/// </summary>
/// <param name="filePath"></param>
/// <param name="id"></param>
/// <returns></returns>
public PatientViewModel GetPatientDetails(string filePath, string id)
{
PatientViewModel patient = GetPatient(filePath, id, false);
//Get encounter information
string apiUrl = AppSettings.FhirAPIBaseUrl + string.Format("Encounter?patient={0}", id);
//call API to get encounter
string response = APIHelper.CallFhirApi(BearerToken, apiUrl);
FhirXmlParser fxp = new FhirXmlParser();
if (CheckIfNotEmptyBundle(response))
{
var bundle = fxp.Parse <Hl7.Fhir.Model.Bundle>(RemoveAllEmptyNode(response));
patient.PatientEncounters = ExtraFhirResourceFromBundle(bundle, "Encounter").Select(o => o as Encounter).ToList();
patient.PatientEncounters.ForEach(item =>
{
if (item.Location == null)
{
item.Location = new List <Encounter.LocationComponent>();
}
});
}
else
{
patient.PatientEncounters = new List <Encounter>();
}
//set patient.location
if (patient.PatientEncounters.Count > 0 &&
patient.PatientEncounters[0].Location != null &&
patient.PatientEncounters[0].Location.Count > 0 &&
patient.PatientEncounters[0].Location[0] != null &&
patient.PatientEncounters[0].Location[0].Location != null &&
!string.IsNullOrEmpty(patient.PatientEncounters[0].Location[0].Location.Display))
{
patient.Location = patient.PatientEncounters[0].Location[0].Location.Display;
}
//Get observation information
apiUrl = AppSettings.FhirAPIBaseUrl + string.Format("Observation?patient={0}", id);
response = APIHelper.CallFhirApi(BearerToken, apiUrl);
if (CheckIfNotEmptyBundle(response))
{
var bundle = fxp.Parse <Hl7.Fhir.Model.Bundle>(RemoveAllEmptyNode(response));
patient.PatientObservations = ExtraFhirResourceFromBundle(bundle, "Observation").Select(o => o as Observation).ToList();
}
else
{
patient.PatientObservations = new List <Observation>();
}
//Get Coverage
apiUrl = AppSettings.FhirAPIBaseUrl + string.Format("Coverage?patient={0}", id);
response = APIHelper.CallFhirApi(BearerToken, apiUrl);
if (CheckIfNotEmptyBundle(response))
{
var bundle = fxp.Parse <Hl7.Fhir.Model.Bundle>(RemoveAllEmptyNode(response));
patient.PatientCoverages = ExtraFhirResourceFromBundle(bundle, "Coverage").Select(o => o as Coverage).ToList();
}
else
{
patient.PatientCoverages = new List <Coverage>();
}
if (patient.PatientCoverages.Count > 0 &&
patient.PatientCoverages[0].Grouping != null &&
!string.IsNullOrEmpty(patient.PatientCoverages[0].Grouping.PlanDisplay))
{
patient.Payor = patient.PatientCoverages[0].Grouping.PlanDisplay;
}
//get AllergyIntolerance
apiUrl = AppSettings.FhirAPIBaseUrl + string.Format("AllergyIntolerance?patient={0}", id);
response = APIHelper.CallFhirApi(BearerToken, apiUrl);
if (CheckIfNotEmptyBundle(response))
{
var bundle = fxp.Parse <Hl7.Fhir.Model.Bundle>(RemoveAllEmptyNode(response));
patient.PatientAllergyIntolerances = ExtraFhirResourceFromBundle(bundle, "AllergyIntolerance").Select(o => o as AllergyIntolerance).ToList();
patient.PatientAllergyIntolerances.ForEach(item =>
{
if (item.Reaction == null || item.Reaction.Count == 0)
{
item.Reaction = new List <AllergyIntolerance.ReactionComponent>()
{
new AllergyIntolerance.ReactionComponent()
{
Substance = new CodeableConcept()
{
Text = ""
},
Manifestation = new List <CodeableConcept>()
{
new CodeableConcept()
{
Text = ""
}
}
}
}
}
;
if (item.Reaction[0].Substance == null)
{
item.Reaction[0].Substance = new CodeableConcept()
{
Text = ""
};
}
if (item.Reaction[0].Manifestation == null || item.Reaction[0].Manifestation.Count == 0)
{
item.Reaction[0].Manifestation = new List <CodeableConcept>()
{
new CodeableConcept()
{
Text = ""
}
};
}
});
}
else
{
patient.PatientAllergyIntolerances = new List <AllergyIntolerance>();
}
//get Medicatioin
apiUrl = AppSettings.FhirAPIBaseUrl + string.Format("MedicationRequest?patient={0}", id);
response = APIHelper.CallFhirApi(BearerToken, apiUrl);
if (CheckIfNotEmptyBundle(response))
{
var bundle = fxp.Parse <Hl7.Fhir.Model.Bundle>(RemoveAllEmptyNode(response));
patient.PatientMedications = ExtraFhirResourceFromBundle(bundle, "MedicationRequest").Select(o => o as MedicationRequest).ToList();
}
else
{
patient.PatientMedications = new List <MedicationRequest>();
}
return(patient);
}
