public async Task <IActionResult> GetAction(string resourceType, string resourceId)
{
var scopes = new string[] { $"{_configuration["FhirImportService:Audience"].TrimEnd('/')}/.default" };
string accessToken;
try
{
accessToken = await _tokenAcquisition.GetAccessTokenOnBehalfOfUser(HttpContext, scopes);
}
catch (MsalUiRequiredException ex)
{
AuthenticationProperties properties = AuthenticationPropertiesBuilder.BuildForIncrementalConsent(scopes, HttpContext, ex);
return(Challenge(properties));
}
using (var client = new HttpClient())
{
client.BaseAddress = new Uri(_configuration["FhirServerUrl"]);
client.DefaultRequestHeaders.Add("Authorization", $"Bearer {accessToken}");
HttpResponseMessage result = await client.GetAsync($"/{resourceType}/{resourceId}");
result.EnsureSuccessStatusCode();
ViewData["ResourceJson"] = await result.Content.ReadAsStringAsync();
}
return(View("Index"));
}
public async Task <IActionResult> Index()
{
var scopes = new string[] { $"{_configuration["FhirServerAudience"].TrimEnd('/')}/.default" };
string accessToken;
try
{
accessToken = await _tokenAcquisition.GetAccessTokenOnBehalfOfUser(HttpContext, scopes);
}
catch (MsalUiRequiredException ex)
{
AuthenticationProperties properties = AuthenticationPropertiesBuilder.BuildForIncrementalConsent(scopes, HttpContext, ex);
return(Challenge(properties));
}
var client = GetClientAsync(accessToken);
Bundle result = null;
List <Patient> patientResults = new List <Patient>();
try
{
if (!string.IsNullOrEmpty(Request.Query["ct"]))
{
string cont = Request.Query["ct"];
result = client.Search <Patient>(new string[] { $"ct={cont}" });
}
else
{
result = client.Search <Patient>();
}
if (result.Entry != null)
{
foreach (var e in result.Entry)
{
patientResults.Add((Patient)e.Resource);
}
}
if (result.NextLink != null)
{
ViewData["NextLink"] = result.NextLink.PathAndQuery;
}
}
catch (Exception e)
{
ViewData["ErrorMessage"] = e.Message;
}
return(View(patientResults));
}
public async Task <IActionResult> AboutMe()
{
var identity = User.Identity as ClaimsIdentity; // Azure AD V2 endpoint specific
string preferred_username = identity.Claims.FirstOrDefault(c => c.Type == "preferred_username")?.Value;
ViewData["FhirServerUrl"] = _configuration["FhirServerUrl"];
ViewData["UPN"] = preferred_username;
var scopes = new string[] { $"{_configuration["FhirServerAudience"].TrimEnd('/')}/.default" };
try
{
var accessToken = await _tokenAcquisition.GetAccessTokenOnBehalfOfUser(HttpContext, scopes);
ViewData["token"] = accessToken;
return(View());
}
catch (MsalUiRequiredException ex)
{
AuthenticationProperties properties = AuthenticationPropertiesBuilder.BuildForIncrementalConsent(scopes, HttpContext, ex);
return(Challenge(properties));
}
}
public async Task <IActionResult> Details(string id)
{
var scopes = new string[] { $"{_configuration["FhirServerAudience"].TrimEnd('/')}/.default" };
string accessToken;
try
{
accessToken = await _tokenAcquisition.GetAccessTokenOnBehalfOfUser(HttpContext, scopes);
}
catch (MsalUiRequiredException ex)
{
AuthenticationProperties properties = AuthenticationPropertiesBuilder.BuildForIncrementalConsent(scopes, HttpContext, ex);
return(Challenge(properties));
}
var client = GetClientAsync(accessToken);
PatientRecord patientRecord = new PatientRecord();
try
{
var patientResult = client.Search <Patient>(new string[] { $"_id={id}" });
if ((patientResult.Entry != null) && (patientResult.Entry.Count > 0))
{
patientRecord.Patient = (Patient)patientResult.Entry[0].Resource;
}
if (patientRecord.Patient != null)
{
patientRecord.Observations = new List <Observation>();
var observationResult = client.Search <Observation>(new string[] { $"subject=Patient/{patientRecord.Patient.Id}" });
while (observationResult != null)
{
foreach (var o in observationResult.Entry)
{
patientRecord.Observations.Add((Observation)o.Resource);
}
observationResult = client.Continue(observationResult);
}
patientRecord.Encounters = new List <Encounter>();
var encounterResult = client.Search <Encounter>(new string[] { $"subject=Patient/{patientRecord.Patient.Id}" });
while (encounterResult != null)
{
foreach (var e in encounterResult.Entry)
{
patientRecord.Encounters.Add((Encounter)e.Resource);
}
encounterResult = client.Continue(encounterResult);
}
patientRecord.Conditions = new List <Condition>();
var conditionResult = client.Search <Condition>(new string[] { $"subject=Patient/{patientRecord.Patient.Id}" });
while (conditionResult != null)
{
foreach (var e in conditionResult.Entry)
{
patientRecord.Conditions.Add((Condition)e.Resource);
}
conditionResult = client.Continue(conditionResult);
}
}
}
catch (Exception e)
{
ViewData["ErrorMessage"] = e.Message;
}
var plainTextBytes = System.Text.Encoding.UTF8.GetBytes(JsonConvert.SerializeObject(new { patient = id }));
var launchContext = Convert.ToBase64String(plainTextBytes);
ViewData["launchContext"] = HttpUtility.UrlEncode(launchContext);
ViewData["fhirServerUrl"] = _configuration["FhirServerUrl"];
// Configure available Smart Apps for this patient
// TODO: Add logic to figure out if app is relevant for patient
patientRecord.SmartApps = new List <SmartAppConfig>();
_configuration.Bind("SmartOnFhirApps", patientRecord.SmartApps);
return(View(patientRecord));
}
