public async SystemTask.Task Invoke(HttpContext context)
{
context.Response.StatusCode = (int)HttpStatusCode.InternalServerError;
var ex = context.Features.Get <IExceptionHandlerFeature>()?.Error;
if (ex == null)
{
return;
}
var ooException = new HttpFhirException();
OperationOutcome.IssueComponent fhirIssue = null;
var issue = new Issue
{
Message = "An unkown error has occured."
};
if (ex.GetType() == typeof(HttpFhirException))
{
ooException = ex as HttpFhirException;
fhirIssue = ooException.OperationOutcome?.Issue.FirstOrDefault();
}
if (fhirIssue != null)
{
issue.Message = fhirIssue?.Code.ToString();
issue.Severity = EnumHelpers.GetEnum <IssueSeverity>(fhirIssue.Severity.ToString());
issue.Details = fhirIssue.Details;
}
if (_env.IsDevelopment())
{
issue.Diagnostics = $"Message: {ex.Message}. StackTrace: {ex.StackTrace}.";
if (ex.InnerException != null)
{
issue.Diagnostics = $"{issue.Diagnostics}. Inner Exception Stack Trace: {ex.InnerException.StackTrace}";
}
if (fhirIssue != null)
{
issue.Diagnostics = fhirIssue?.Diagnostics;
}
}
context.Response.ContentType = "application/json";
using (var writer = new StreamWriter(context.Response.Body))
{
new JsonSerializer().Serialize(writer, issue);
await writer.FlushAsync().ConfigureAwait(false);
}
}
public async SystemTasks.Task Invoke(HttpContext context)
{
context.Response.StatusCode = (int)HttpStatusCode.InternalServerError;
HttpFhirException ooException = null;
var ex = context.Features.Get <IExceptionHandlerFeature>()?.Error;
if (ex == null)
{
return;
}
if (ex.GetType() == typeof(HttpFhirException))
{
ooException = ex as HttpFhirException;
context.Response.StatusCode = (int)ooException.StatusCode;
}
var diagnostics = "An unknown error has occured.";
if (_env.IsDevelopment())
{
diagnostics = $"Message: {ex.Message}. StackTrace: {ex.StackTrace}";
if (ex.InnerException != null)
{
diagnostics = $"Message: {ex.Message}. StackTrace: {ex.StackTrace}. Inner Exception Stack Trace: {ex.InnerException.StackTrace}";
}
}
var outcome = ooException?.OperationOutcome != null ? ooException.OperationOutcome : OperationOutcomeFactory.CreateInternalError(diagnostics);
string output;
if (UseJsonOutput(context))
{
output = new FhirJsonSerializer().SerializeToString(outcome);
context.Response.ContentType = $"{ContentType.JSON_CONTENT_HEADER}; charset={Encoding.UTF8.WebName}";
}
else
{
output = new FhirXmlSerializer().SerializeToString(outcome);
output = Regex.Replace(output, @"((\s){1})(/>)", "/>", RegexOptions.Compiled);
context.Response.ContentType = $"{ContentType.XML_CONTENT_HEADER}; charset={Encoding.UTF8.WebName}";
}
await context.Response.WriteAsync(output, Encoding.UTF8);
return;
}