CODEWITHSUNDEEP
c#pdfasp.net-web-apiasp.net-core-webapi
developer
developer

Reputation: 1675

Pass PDF result to another web api in ASP.NET Core

I have a web api which retrieves PDF file stored in database. 

[HttpGet("file/{id}")]
public IActionResult GetFile(int id)
{
    var file = dataAccess.GetFileFromDB(id);

    HttpContext.Response.ContentType = "application/pdf";
    FileContentResult result = new FileContentResult(file, "application/pdf")
    {
        FileDownloadName = "test.pdf"
    };

    return result;
}

I need to write a wrapper web api which will pass result from the above web api to the client.

What is the best way to achieve this using .NET Core? should I return byte array from the above web api and convert byte array to FileContentResult in the wrapper api?

Any code sample would be very helpful.

Thanks.

Upvotes: 0

Views: 2657

Answers (1)

Federico Dipuma
Federico Dipuma

Reputation: 18265

You may try to just reroute the response from an HttpClient to the user:

using System.Net.Http;
using Microsoft.AspNetCore.Mvc;

public class TestController : Controller
{
    public async Task<IActionResult> Get()
    {
        using (var client = new HttpClient())
        {
            var response = await client.GetAsync("http://apiaddress", HttpCompletionOption.ResponseHeadersRead); // this ensures the response body is not buffered

            using (var stream = await response.Content.ReadAsStreamAsync()) 
            {
                return File(stream, "application/pdf");
            }
        }
    }
}

Upvotes: 1

Related Questions