public async Task InvokeAsync(HttpContext context, ILoggerRepository repo)
{
var log = new LogMessage
{
Path = context.Request.Path,
Method = context.Request.Method,
QueryString = context.Request.QueryString.ToString()
};
if (context.Request.Method == "POST")
{
context.Request.EnableBuffering();
var body = await new StreamReader(context.Request.Body).ReadToEndAsync();
context.Request.Body.Position = 0;
log.Payload = body;
}
log.RequestedOn = DateTime.Now;
Stream originalRequest = context.Response.Body;
try
{
await next.Invoke(context);
using (originalRequest)
{
using (var memStream = new MemoryStream())
{
context.Response.Body = memStream;
memStream.Position = 0;
var response = await new StreamReader(memStream).ReadToEndAsync();
log.Response = response;
log.ResponseCode = context.Response.StatusCode.ToString();
log.IsSuccessStatusCode = (
context.Response.StatusCode == 200 ||
context.Response.StatusCode == 201);
log.RespondedOn = DateTime.Now;
memStream.Position = 0;
await memStream.CopyToAsync(originalRequest);
}
}
}
catch (Exception ex)
{
StringBuilder sb = new StringBuilder();
sb.Append($"Error: {ex.Message}");
Exception?error = ex;
do
{
sb.Append($"{Environment.NewLine}Inner exception: {ex.StackTrace}");
error = error.InnerException;
} while (error != null);
log.Exception = sb.ToString();
throw;
}
finally
{
// assign the response body to the actual context
context.Response.Body = originalRequest;
repo.AddToLogs(log);
}
}