fun.cs

using System;
using System.IO;
using System.Linq;
using System.Threading.Tasks;
using Microsoft.AspNetCore.Mvc;
using Microsoft.Azure.WebJobs;
using Microsoft.Azure.WebJobs.Extensions.Http;
using Microsoft.AspNetCore.Http;
using Microsoft.Extensions.Logging;
using Newtonsoft.Json;
using System.Net.Http;

namespace Bonliva
{
  public static class MyHttpTriggerDemo
  {
    [FunctionName("MyHttpTriggerDemo")]
    public static async Task<IActionResult> Run(
        [HttpTrigger(AuthorizationLevel.Anonymous, "get", "post", Route = null)] HttpRequestMessage req,
        ILogger log)
    {
      log.LogInformation("C# HTTP trigger function processed a request.");

      var provider = new MultipartMemoryStreamProvider();
      await req.Content.ReadAsMultipartAsync(provider);
      var file = provider.Contents.First();
      var fileInfo = file.Headers.ContentDisposition;
      var fileData = await file.ReadAsByteArrayAsync();

      string tempDir = Path.Combine(Path.GetTempPath(), "MyData");
      if (!Directory.Exists(tempDir))
      {
          Directory.CreateDirectory(tempDir);
      }
      string tempFile = Path.Combine(tempDir, "test.txt");

      File.WriteAllBytes(tempFile, fileData);

      File.Delete(tempFile);

      return new OkObjectResult($"Nice!");
    }
  }
}