Why Do I Get an HTTP 415 Unsupported Media Type Error When Sending a JSON Request?

HTTP 415 Unsupported Media Type with JSON Request

When sending a JSON request to a REST API, you may encounter an "Unsupported Media Type" (HTTP 415) error. This typically indicates that the server is expecting a different content type for the request's body.

In the example provided, the problem stems from specifying "charset=utf8" in the Content-Type header. The server is likely configured to accept JSON requests with a content type of "application/json" without any additional charset specification.

To resolve the issue, modify the code to remove "charset=utf8" from the Content-Type header:

<code class="java">con.setRequestProperty("Content-Type", "application/json");</code>

This change ensures that the request is sent with a content type of "application/json" only, which is what the server is expecting.

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