Fix HTTP 415 Unsupported Media Type Error

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The HTTP 415 Unsupported Media Type Client Error Response Code indicates that the server does not accept the request because the payload format is in an unsupported format.

The format problem may be due to the type of content or the specified encoding of the request, or to the direct verification of the data.

The error message is as follows:

The server is refusing to service the request because the entity of the request is in a format not supported by the requested resource for the requested method.

What does the unsupported media type 415 mean?

An unsupported media type error occurs when the source server rejects a particular request because the resource is in a format that the server does not support for the HTTP method used. This problem of unsupported format type can be caused by the definition in the Content-Type or Content-Encoding headers of the resource.

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Error 415 is somewhat related to error 406 because it occurs due to media type problems. However, error 406 is not triggered by the value in the Content-Type or Content-Encoding headers, but by the value in the HTTP Accept header.

The Content-Type header can be contained in the request and response headers and is used to inform the server of the data actually involved. An example of this is the submission of a form on a website. The form is transmitted by the POST method and therefore sends the data to the server. The Content-Type header is included in the request so that the server knows what type of data is being sent. However, if the server is not able to process the Content-Type value of this request, the client receives an unsupported 415 media response.


You must send “username=admin&password=admin” in the body with the content type=”application/x-www-form-urlencoded” from the POST request to the authentication API URL.

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