private static Exception buildFhirOperationException(HttpStatusCode status, Resource body)
{
string message;
if (status.IsInformational())
{
message = $"Operation resulted in an informational response ({status})";
}
else if (status.IsRedirection())
{
message = $"Operation resulted in a redirection response ({status})";
}
else if (status.IsClientError())
{
message = $"Operation was unsuccessful because of a client error ({status})";
}
else
{
message = $"Operation was unsuccessful, and returned status {status}";
}
if (body is OperationOutcome outcome)
{
return(new FhirOperationException($"{message}. OperationOutcome: {outcome.ToString()}.", status, outcome));
}
else if (body != null)
{
return(new FhirOperationException($"{message}. Body contains a {body.TypeName}.", status));
}
else
{
return(new FhirOperationException($"{message}. Body has no content.", status));
}
}
public static bool IsErrorStatus(this HttpStatusCode statusCode)
{
if (statusCode.IsClientError())
{
return(true);
}
if (statusCode.IsServerError())
{
return(true);
}
return(false);
}
/// <summary>
/// Convert a status code into an exception, or null if everything is fine.
/// </summary>
/// <param name="status">HTTP status code</param>
/// <param name="body">Content delivered by the server, parsed as a FHIR resource</param>
/// <returns></returns>
private static Exception httpNonSuccessStatusToException(HttpStatusCode status, Resource body)
{
if (status.IsInformational() || status.IsRedirection()) // 1xx and 3xx codes - we don't handle them, unless the .NET API did it for us
{
return(Error.NotSupported("Server returned a status code '{0}', which is not supported by the FhirClient".FormatWith(status)));
}
else if (status.IsClientError() || status.IsServerError()) // 4xx/5xx codes - client or server error.
{
return(buildFhirOperationException(status, body));
}
else
{
return(Error.NotSupported("Server returned an illegal http status code '{0}', which is not defined by the Http standard".FormatWith(status)));
}
}
public void IsClientError(bool expected, HttpStatusCode httpStatusCode) => Assert.Equal(expected, httpStatusCode.IsClientError());