In Postman I call endpoint (method GET) : http://192.168.0.9/I_REST_TEST/api/Z_V6/GetChanged
I set in Postman Body raw json parameter like :

 {
        "ContextKey": "8271e9bd-1f09-47f9-af5c",
        "Prs": {
            "GetOne": false,
            "GetAll": true
        },
        "FILTERS": [
            {
                "NAME": "wp12",
                "PARS": [
                    {
                        "NAME": "prs1",
                        "VALUE": "car"
                    }
                ]
            }
        ]
    }

Respond is OK.

I would like to do the same in Delphi but every time I receive message “Unsupported Media Type”.
I added Content-Type=application/json but this error is again.
What is incorrect?

Best regards