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Http Error 415 when trying to remove an uploaded file

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This is a migrated thread and some comments may be shown as answers.
Mark Stevens
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Mark Stevens asked on 02 Apr 2020, 07:18 PM

I get the following error when attempting to remove an uploaded file. I'm using the example code from the Upload Overview Document https://docs.telerik.com/blazor-ui/components/upload/overview?_ga=2.20672573.407168315.1585784320-1941347284.1557871324

 

VS 2019 Output Window.

Failed to load resource: the server responded with a status of 415 () [https://localhost:44326/api/upload/remove]

Microsoft.AspNetCore.Routing.EndpointMiddleware: Information: Executed endpoint 'TestUpload.Controllers.UploadController.Remove (TestUpload)'
Microsoft.AspNetCore.Hosting.Diagnostics: Information: Request finished in 69.8482ms 415 application/problem+json; charset=utf-8

 

Browser Console.

telerik-blazor.js:39 POST https://localhost:44326/api/upload/remove 415
value @ telerik-blazor.js:39
value @ telerik-blazor.js:39
value @ telerik-blazor.js:39
value @ telerik-blazor.js:39
value @ telerik-blazor.js:39
u @ telerik-blazor.js:1
(anonymous) @ blazor.server.js:8
beginInvokeJSFromDotNet @ blazor.server.js:8
(anonymous) @ blazor.server.js:1
e.invokeClientMethod @ blazor.server.js:1
e.processIncomingData @ blazor.server.js:1
connection.onreceive @ blazor.server.js:1
i.onmessage @ blazor.server.js:1

 

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Mark Stevens
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answered on 02 Apr 2020, 08:48 PM

I added the [FromForm] attribute to the Remove method of the API and it's working now.

 

     public ActionResult Remove([FromForm] string[] files)

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Marin Bratanov
Telerik team
answered on 03 Apr 2020, 08:01 AM

Thank you for sharing your solution with the community, Mark. I have marked it as the answer to this thread.

It is a bit odd that the docs wouldn't work immediately, but there can be many specifics around the API endpoints an app can have and the Remove request is, ultimately, a form field in the POST query that contains a string.

 

Regards,
Marin Bratanov
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Mark Stevens
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Mark Stevens
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Marin Bratanov
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