Connect to Google Healthcare

[hongyu0324]

I got error message as below

Operation was unsuccessful because of a client error (NotAcceptable). OperationOutcome: Overall result: FAILURE (1 errors and 0 warnings)
[ERROR] invalid_headers(further diagnostics: invalid Accept headers)

I try to use firely NET SDK for Google Healthcare FHIR Stor，code is as listed :

FhirClient client = new FhirClient(url);
client.RequestHeaders.Add("Authorization", $"Bearer {token}");

try
{    
    var result = await client.ReadAsync<Patient>("Patient/3219f9b7-0ed8-cc42-683a-c2a06fafab0a");
    Console.WriteLine(result.Id);
}
catch (Exception e)
{
    Console.WriteLine(e.Message);
}

The token works well as I use HttpClient

using System.Net.Http;
using System.Threading.Tasks;
using Hl7.Fhir.Model; 
using Hl7.Fhir.Serialization;

var client = new HttpClient();
client.DefaultRequestHeaders.Add("Authorization", $"Bearer {token}");

var response = await client.GetAsync(url+"/Patient/e2551e8f-c1b4-a79f-0a02-f8ac5a6cfa83");
var content = await response.Content.ReadAsStringAsync();

But I got error message when I use FhirClient,

Thanks.

[mmsmits]

Hi,

We normally advise users to add authorization headers, using MessageHandlers like described here:
https://docs.fire.ly/projects/Firely-NET-SDK/en/latest/client/request-response.html#adding-extra-headers

Can you try and see if this will solve your problem?

[hongyu0324]

I got the same error message

public class AuthorizationMessageHandler : HttpClientHandler
{
        public System.Net.Http.Headers.AuthenticationHeaderValue Authorization { get; set; }
        protected async override Task<HttpResponseMessage> SendAsync(HttpRequestMessage request, CancellationToken cancellationToken)
        {
                if (Authorization != null)
                        request.Headers.Authorization = Authorization;
                return await base.SendAsync(request, cancellationToken);
        }
}

var handler = new AuthorizationMessageHandler();
handler.Authorization = new AuthenticationHeaderValue("Bearer", token);
var client = new FhirClient(url,null,handler);

try
{
    var result = await client.ReadAsync<Patient>("Patient/3219f9b7-0ed8-cc42-683a-c2a06fafab0a");
    Console.WriteLine(result.Id);
}
catch (Exception e)
{
    Console.WriteLine(e.Message);
}

[brianpos]

You can pass the httpclient to the FhirClient constructor...