byte[] over 3MB comes up NULL in API C#-CodePudding

I have an desktop application written in .NET 4.7.2 that uses an API to upload files to SharePoint.

This is the call to the API

var responseMessage = this
                      .Client
                      .PostAsync("/Upload", new StringContent(JsonConvert.SerializeObject(file), Encoding.UTF8, "application/json"))
                      .Result;

if (!responseMessage.IsSuccessStatusCode)
    throw new Exception("Save to Sharepoint Failed");

return responseMessage;

The content type and the byte[] are all good in the file object, it successfully uploads a file less than 3MB just fine.

The API .NET 4.7.1
Once it gets here the request.doc object, if over ~3MB then the request.doc will be NULL and as such the upload will fail.

[HttpPost]
[Route("Upload")]
public async Task<IHttpActionResult> SaveFileToSharePointStream([FromBody] SharepointFileUploadRequest request)
{
    using (var ms = new MemoryStream(request.doc))
    {
        var result = await _sharepointBll.SaveFileToSharePointStream(request.newFileName, ms, request.folderPath, request.fileTags);
        return Ok(result);
    }
}

I tried adding in the web.config on both the client and the server to no avail.

<system.webServer>
  <security>
    <requestFiltering>
      <requestLimits>
        <headerLimits>
          <add header="Content-type" sizeLimit="30000000" />
        </headerLimits>
      </requestLimits>
    </requestFiltering>
  </security>
</system.webServer>

I think the issue might be with String.Content(), but I can't seem to find a way to increase the amount of data I can pass to it.

CodePudding user response：

Instead of passing new StringContent(JsonConvert.SerializeObject(file), you can try by passing the SharepointFileUploadRequest as parameter from your given code.

CodePudding user response：

On the api in the config I had to add maxRequestLength

<httpRuntime targetFramework="4.7.1" executionTimeout="1000" maxRequestLength="30720" />