public async Task Invoke(HttpContext context, IApiLogger logger)
{
try
{
await _next(context);
}
catch (Exception ex)
{
logger.LogException(ex);
}
}
public async Task Invoke(HttpContext context, IApiLogger logger)
{
var currentBody = context.Response.Body;
using (var memoryStream = new MemoryStream())
{
//set the current response to the memorystream.
context.Response.Body = memoryStream;
try
{
await _next(context);
}
catch (Exception e)
{
logger.LogException(e);
context.Response.StatusCode = (int)HttpStatusCode.InternalServerError;
}
//reset the body
context.Response.Body = currentBody;
memoryStream.Seek(0, SeekOrigin.Begin);
var readToEnd = new StreamReader(memoryStream).ReadToEnd();
var objResult = JsonConvert.DeserializeObject(readToEnd);
if (context.Response.StatusCode > 400 && objResult == null)
{
var result = StausCodeMapper.Map((HttpStatusCode)context.Response.StatusCode);
//Ideally this should be retrieved from System.Net.Mime.Mediatypes but application/json does not yet exist
//So manually added the exact type with charset from an example response that's set by asp.net core (used the else part
//of this if to see what asp.net core uses by default)
//See: https://github.com/dotnet/corefx/issues/24895
context.Response.ContentType = "application / json; charset = utf - 8";
await context.Response.WriteAsync(JsonConvert.SerializeObject(result));
}
else
{
await context.Response.WriteAsync(JsonConvert.SerializeObject(objResult));
}
}
}
