Hardware⏱️ 2 min read📅 2026-06-03

How to Fix: Http 415 Unsupported Media type error with JSON

The issue is likely due to the request body not being properly serialized or deserialized. Try using a different JSON library, such as Jackson or Gson's own `Gson` class with the `setPrettyPrint()` method.

Quick Answer: Check the server-side configuration for any specific requirements on JSON serialization.

The HTTP 415 Unsupported Media Type error occurs when the server cannot parse the request content type. In your case, the issue is likely due to the fact that the Content-Type header is set to `application/json; charset=utf8`, but the server expects a different format for JSON data.

✅ Best Solutions to Fix It

Method 1: Specifying the Accept Header

  1. Step 1: Add an Accept header with the `application/json` format to your request.

Method 2: Using a JSON Library

  1. Step 1: Use a library like Gson to serialize your JSON data before sending it in the request.

🎯 Final Words

By specifying the Accept header or using a library to serialize your JSON data, you should be able to resolve the HTTP 415 Unsupported Media Type error and successfully call the REST service.

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