private string GetToken()
    {
        HttpWebRequest request = HttpWebRequest.CreateHttp("http://sandbox.evoluservices.com/remote/token");
        request.Method = "POST";
        request.ContentType = "application/json";
        using (Stream requestStream = request.GetRequestStream())
        {
            string auth = JsonConvert.SerializeObject(new { auth = new { username = "teste", apiKey = "123mudar" } });
            byte[] buffer = Encoding.ASCII.GetBytes(auth);
            requestStream.Write(buffer, 0, buffer.Length);
        }
        try
        {
            using (WebResponse response = request.GetResponse())
            {
                using (Stream responseStream = response.GetResponseStream())
                {
                    using (StreamReader sr = new StreamReader(responseStream))
                    {
                        return JsonConvert.DeserializeObject<dynamic>(sr.ReadToEnd()).Bearer.Value;
                    }
                }
            }
        }
        catch (WebException webException)
        {
            throw new ApiError(webException.Message, ((HttpWebResponse)webException.Response).StatusCode, ((HttpWebResponse)webException.Response).StatusDescription);
        }
    }

public class ApiError : Exception
    {
        public HttpStatusCode StatusCode { get; set; }
        public string ReasonPhrase { get; set; }

        public ApiError(string message, HttpStatusCode statusCode, string reasonPhrase) : base(message)
        {
            ReasonPhrase = reasonPhrase;
            StatusCode = statusCode;
        }
    }

{
 "auth": {
   "username": "teste",
   "apiKey": "123mudar"
 }
}

{
    "Bearer": "token"
}

{
   "success": "false",
   "error": "<Error message>"
}

 public static void main(String[] args) throws IOException {
        // JSON com as informações de inicio da transação remota
        String rawData = "{'transaction': { 'merchantId': 'ABC123','value': '10.00','installments': '2','paymentBrand': 'VISA_CREDITO'}}";

        // Endpoint com somente os atributos necessários setados
        URL u = new URL("https://sandbox.evoluservices.com/remote/transaction");
        HttpURLConnection conn = (HttpURLConnection) u.openConnection();
        conn.setDoOutput(true);
        conn.setRequestMethod("POST");
        conn.setRequestProperty("Content-Type", "application/json; charset=utf8");
        conn.setRequestProperty(
                "Bearer",
                "xyz_456");
        OutputStream os = conn.getOutputStream();
        os.write(rawData.toString().getBytes("UTF-8"));
        os.close();

        StringBuilder sb = new StringBuilder();
        int HttpResult = conn.getResponseCode();

        // Se o resultado for HTTP OK, recebemos uma mensagem de sucesso
        if (HttpResult == HttpURLConnection.HTTP_OK) {
            BufferedReader br = new BufferedReader(new InputStreamReader(conn.getInputStream(), "utf-8"));

            String line = null;
            while ((line = br.readLine()) != null) {
                sb.append(line + "\n");
            }
            br.close();
            System.out.println("" + sb.toString());

        } else {
            // Caso contrário, lemos o código e mensagem de erro
            System.out.println(conn.getResponseCode());
            System.out.println(conn.getResponseMessage());
        }

    }

private static void CreateTransaction()
    {
        HttpWebRequest request = (HttpWebRequest)WebRequest.Create("http://sandbox.evoluservices.com/remote/transaction");
        request.Method = "POST";
        request.ContentType = "application/json";
        request.Headers["Bearer"] = "XYZ456";
        using (Stream requestStream = request.GetRequestStream())
        {
            string auth = JsonConvert.SerializeObject(new { transaction = new { merchantId = "ABC123", value = "10.00", installments = "2", paymentBrand = "VISA_CREDITO" } });
            byte[] buffer = Encoding.ASCII.GetBytes(auth);
            requestStream.Write(buffer, 0, buffer.Length);
        }

        try
        {
            using (HttpWebResponse response = (HttpWebResponse)request.GetResponse())
            {
                using (Stream responseStream = response.GetResponseStream())
                {
                    using (StreamReader sr = new StreamReader(responseStream))
                    {
                        dynamic transactionApproved = JsonConvert.DeserializeObject<dynamic>(sr.ReadToEnd());
                        string transactionId = transactionApproved.transactionId.Value;
                        Debug.WriteLine("TransactionID:" + transactionId);
                    }
                }
            }
        }
        catch (WebException webException)
        {
            throw new ApiError(webException.Message, ((HttpWebResponse)webException.Response).StatusCode, ((HttpWebResponse)webException.Response).StatusDescription);
        }
    }

    public class ApiError : Exception
    {
        public HttpStatusCode StatusCode { get; set; }
        public string ReasonPhrase { get; set; }

        public ApiError(string message, HttpStatusCode statusCode, string reasonPhrase) : base(message)
        {
            ReasonPhrase = reasonPhrase;
            StatusCode = statusCode;
        }
    }

{
  "transaction": { 
    "merchantId": "<id>",
    "terminalId": "<id>",
    "value": "10.00",
    "installments": 2,
    "paymentBrand": "VISA_CREDITO",
    "callbackUrl": "<url>",
    "clientName": "<name>",
    "installmentsCanChange" : "false",
    "clientEmail": "<email>",
    "splits": [{
      "code": "<code>",
      "value": "2.00",
      "chargeFees": true
    },  {
      "code": "<code>",
      "value": "3.00",
      "chargeFees": false
    }]
  }
}

// Exemplos
{
  "paymentBrand" : "MAESTRO", // Transação de débito
},
{
  "paymentBrand" : "MASTERCARD", // Transação de crédito
}

{
  "success": "true",
  "error": "REMOTE_TRANSACTION_SUCCESS",
  "transactionId": "NTcwMA*3"
}

{
   "success": "false",
   "error": "<Error message>"
}

{ 
  "remoteTransactionId": "<id>",
  "status": "APPROVED",
  "merchantId": "<id>",
  "value": "10.00",
  "paymentBrand": "VISA_CREDITO",
  "transactionNumber": "<transactionNumber>",
  "paymentQuantity": "2",
  "clientName": "CLIENT_NOT_INFORMED",
  "terminalId": "<id>",
  "payments": [
    {
      "status": "UNPAID",
      "value": 4.95,
      "number": 1,
      "date": "21/12/2016",
      "recipientName": "<name>",
      "recipientDocument": "<document>"
    },
    {
      "status": "UNPAID",
      "value": 4.95,
      "number": 2,
      "date": "21/01/2017",
      "recipientName": "<name>",
      "recipientDocument": "<document>"
    }
  ],
  "splits": [
    {
      "status": "UNPAID",
      "value": 2.35,
      "number": 1,
      "date": "02/02/2020",
      "recipientName": "<name>",
      "recipientDocument": "<document>"
    },
    {
      "status": "UNPAID",
      "value": 3.15,
      "number": 2,
      "date": "02/03/2020",
      "recipientName": "<name>",
      "recipientDocument": "<document>"
    }
  ]
}

{
   "success": "false",
   "error": "<Error message>"
}

[
    {
        "macAddress": "8d:c1:d3:12:14:bb",
        "computerName": "DESKTOP",
        "terminalId": "AA009999",
        "terminalStatus": "ONLINE"
    }
]

{
   "success": "false",
   "error": "<Error message>"
}

[
  {
    "name": "<name>",
    "document": "<document>",
    "code": "<code>"
  }
]

{
   "success": "false",
   "error": "<Error message>"
}

{
   "success": "false",
   "error": "<Error message>"
}

{
   "success": "false",
   "error": "<Error message>"
}