Paypal Adaptive Payment in Java with spring boot

Question

Hello I am implementing adaptive payment in pay-pal with spring boot. But i am getting an error when i hit api in postman. Error is : com.paypal.exception.MissingCredentialE

Answer 1

I solved this problem. i am posting the answer

Here is Service class

package com.AdaptivePayment.Service;

import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import javax.servlet.http.HttpServletRequest;
import org.springframework.stereotype.Service;
import com.AdaptivePayment.Config.AdaptivePaymentConfig;
import com.paypal.svcs.services.AdaptivePaymentsService;
import com.paypal.svcs.types.ap.ExecutePaymentRequest;
import com.paypal.svcs.types.ap.ExecutePaymentResponse;
import com.paypal.svcs.types.ap.PayRequest;
import com.paypal.svcs.types.ap.PayResponse;
import com.paypal.svcs.types.ap.Receiver;
import com.paypal.svcs.types.ap.ReceiverList;
import com.paypal.svcs.types.common.AckCode;
import com.paypal.svcs.types.common.RequestEnvelope;

@Service
public class AdaptivePaymentService {

    public Map<String, Object> createPayment() {
        Map<String, Object> response = new HashMap<String, Object>();

        RequestEnvelope env = new RequestEnvelope();
        env.setErrorLanguage("en_US");

        Receiver rec1 = new Receiver();
        rec1.setAmount(2.00);
        rec1.setEmail("admin-buyer@gmail.com");

        Receiver rec2 = new Receiver();
        rec2.setAmount(4.00);
        rec2.setEmail("admin-facilitator@gmail.com");

        List<Receiver> receiver = new ArrayList<Receiver>();
        receiver.add(rec1);
        receiver.add(rec2);
        ReceiverList receiverlst = new ReceiverList(receiver);

        PayRequest payRequest = new PayRequest();
        payRequest.setReceiverList(receiverlst);
        payRequest.setRequestEnvelope(env);
        payRequest.setActionType("PAY");
        payRequest.setCurrencyCode("USD");

        payRequest.setCancelUrl("http://localhost:9090/cancel");
        payRequest.setReturnUrl("http://localhost:9090/success");

        Map<String, String> configurationMap = AdaptivePaymentConfig.getAcctAndConfig();

        AdaptivePaymentsService service = new AdaptivePaymentsService(configurationMap);
        try {
            String redirectUrl = null;
            PayResponse resp = service.pay(payRequest);
            if(!resp.getResponseEnvelope().getAck().toString().trim().toUpperCase().equals(AckCode.FAILURE.toString())&& !resp.getResponseEnvelope().getAck().toString().trim().toUpperCase().equals(AckCode.FAILUREWITHWARNING.toString()));
            {
                redirectUrl = "https://www.sandbox.paypal.com/us/cgi-bin/webscr?cmd=_ap-payment&paykey=" + resp.getPayKey();
            }
            response.put("status", "success");
            response.put("redirect_url", redirectUrl);

        } catch (Exception e) {
            e.printStackTrace();
        }
        return response;
    }

Here is Controller Class

 package com.AdaptivePayment.Controller;

import java.util.HashMap;
import java.util.Map;
import javax.servlet.http.HttpServletRequest;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.http.HttpStatus;
import org.springframework.http.ResponseEntity;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestMethod;
import org.springframework.web.bind.annotation.RequestParam;
import com.AdaptivePayment.Service.AdaptivePaymentService;

@Controller
public class AdaptivePaymentController {

    @Autowired
    private AdaptivePaymentService adaptiveService;

    @RequestMapping(value = "adaptivePayment", method = RequestMethod.POST)
    public ResponseEntity<Map<String, Object>> adaptivePayment() {
        Map<String, Object> response = new HashMap<String, Object>();
        Map<String, Object> data = new HashMap<String, Object>();
        try {
            Map<String, Object> adaptiveResponse = adaptiveService.createPayment();
            data.put("Adaptive", adaptiveResponse.get("redirect_url"));
            response.put("data", data);
            response.put("status", "OK");
            response.put("code", "200");
            response.put("message", "Click on this Link to pay.");
            return new ResponseEntity<Map<String, Object>>(response, HttpStatus.OK);
        } catch (Exception e) {
            e.printStackTrace();
            response.put("status", "ERROR");
            response.put("code", "500");
            response.put("message", "Something went wrong");
            return new ResponseEntity<Map<String, Object>>(response, HttpStatus.INTERNAL_SERVER_ERROR);
        }
    }