Gratification API

gistfile1.txt

package com.paytm.wallet.gratification;

import com.google.gson.Gson;
import com.google.gson.JsonObject;
import com.google.gson.JsonPrimitive;
//import com.paytm.merchant.CheckSumServiceHelper;
import com.paytm.pg.merchant.CheckSumServiceHelper;

import java.io.BufferedReader;
import java.io.DataOutputStream;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.net.HttpURLConnection;
import java.net.URL;

public class gratification {
	public static String paytmGratificationTestUrl = "https://trust-uat.paytm.in/wallet-web/salesToUserCredit";
	public String paytmGratificationProdUrl = "https://trust.paytm.in/wallet-web/salesToUserCredit";
	public static String paytmMerchantGuid = "a2486a8d-e3a9-451f-86c7-3c2b2ddeba00";
	public static String paytmSalesWalletGuid = "179a368d-7e6b-45c5-8318-11d9192d94d8";
	public static String paytmMerchantKey = "Rhm6NEmoaiXDiFbO";

	public static String getJsonRequest() {
		JsonObject mainBody = new JsonObject();
		JsonObject requestBody = new JsonObject();

		requestBody.add("requestType", null);
		requestBody.add("merchantGuid", new JsonPrimitive(paytmMerchantGuid));
		requestBody.add("merchantOrderId", new JsonPrimitive("merchantOrderId-Mavin-0000000005"));
		requestBody.add("salesWalletName", null);
		requestBody.add("salesWalletGuid", new JsonPrimitive(paytmSalesWalletGuid));
		requestBody.add("payeeEmailId", null);
		requestBody.add("payeePhoneNumber", new JsonPrimitive("7777777777"));
		requestBody.add("payeeSsoId", null);
		requestBody.add("appliedToNewUsers", new JsonPrimitive("N"));
		requestBody.add("amount", new JsonPrimitive("1"));
		requestBody.add("currencyCode", new JsonPrimitive("INR"));

		mainBody.add("request", requestBody);
		mainBody.add("metadata", new JsonPrimitive("metadata-Mavin-0000000005"));
		mainBody.add("ipAddress", new JsonPrimitive("192.168.0.1"));
		mainBody.add("platformName", new JsonPrimitive("PayTM"));
		mainBody.add("operationType", new JsonPrimitive("SALES_TO_USER_CREDIT"));
		String jsonRes = new Gson().toJson(mainBody).toString();
		return jsonRes;
	}

	public static String gratificationRequest(String targetURL) throws Exception {
		HttpURLConnection connection = null;
		URL url = new URL(targetURL);
		String requestBody = getJsonRequest();

		connection = (HttpURLConnection) url.openConnection();
		connection.setRequestMethod("POST");

		String CHECKSUMHASH = CheckSumServiceHelper.getCheckSumServiceHelper().genrateCheckSum(paytmMerchantKey,
				requestBody.toString());
		System.out.println(CHECKSUMHASH);

		try {
			connection = (HttpURLConnection) url.openConnection();
			connection.setRequestProperty("Content-Type", "application/json");
			connection.setRequestProperty("mid", paytmMerchantGuid);
			connection.setRequestProperty("checksumhash", CHECKSUMHASH);
			// connection.setRequestProperty("Content-Length",
			// Integer.toString(requestBody.getBytes().length));
			// connection.setUseCaches(false);
			connection.setDoOutput(true);

			DataOutputStream wr = new DataOutputStream(connection.getOutputStream());
			wr.writeBytes(requestBody);
			wr.close();

			InputStream is;
			try {
				is = connection.getInputStream();
			} catch (Exception e) {
				is = connection.getErrorStream();
			}

			BufferedReader rd = new BufferedReader(new InputStreamReader(is));
			int statusCode = connection.getResponseCode();
			System.out.println("The http header code is = " + statusCode);
			StringBuilder response = new StringBuilder();
			String line = "";
			while ((line = rd.readLine()) != null) {
				response.append(line);
				response.append('\r');
			}
			rd.close();
			System.out.println("This is response string= " + response);
			return response.toString();
		} catch (Exception e) {
			System.out.println("This is response string= " + e.getMessage());
		} finally {
			if (connection != null) {
				connection.disconnect();
			}
		}
		return "";
	}

	public static void main(String[] args) throws Exception {
		gratificationRequest(paytmGratificationTestUrl);
	}

}