ASP.Net Core 1.1 MiddleWare response

Question

I am replacing a HttpHandler with a middleware service. I have all the code working except for returning the actual image. All the existing samples are for asp.net Core (or earlier) , but with asp.net core 1.1 the response object has change?

public async Task Invoke(HttpContext context)
{
      var mediaType = new MediaTypeHeaderValue("image/jpeg");
      mediaType.Encoding = System.Text.Encoding.UTF8;
      context.Response.ContentType = mediaType.ToString();
      byte[] results = some process that generates a byte array
      Stream stream = new MemoryStream(results);
      context.Response.Body = stream;
      await _next.Invoke(context);
 }

So how do we attach the byte array to the response object?

Thanks this was the exact solution to my problem

Guy Gallant
– Guy Gallant

2016-12-01 02:04:25 +00:00
Commented Dec 1, 2016 at 2:04 — Guy Gallant
– Guy Gallant, Commented Dec 1, 2016 at 2:04

Dawid Rutkowski · Accepted Answer · 2016-11-29 09:36:17Z

1

There is couple of methods which you can use on .NET Core 1.1:

httpContext.Response.Body.WriteAsync([BUFFER], [OFFSET], [COUNT]);
httpContext.Response.Body.Write([BUFFER], [OFFSET], [COUNT]);
httpContext.Response.Body.WriteByte([BYTE]);
httpContext.Response.WriteAsync([TEXT])

answered Nov 29, 2016 at 9:36

Dawid Rutkowski

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