PayU Payment gateway integration in IOS.

Kunal Prasad

26 October 2021

Pay U Payment Gateway

Sometimes we require to integrate an application with Payu payment gateway . for this, we require to follow some steps.

1: There are two ways to integrate with Payu .( seamless and non-seamless(inbuilt UI part)).

2: Here I am defining about non-seamless Integration.

3: Go to that Url and download their SDK. https://github.com/payu-intrepos/Documentations/wiki/8.-iOS-SDK-integration

4: Drag Payu folder in your Xcode project.

5: do some changes in the project.

Add libz.tbd libraries to your project (Project->Build Phases->Link Binary With Libraries)
Add -ObjC in Other Linker Flags in Project Build Settings(Project->Build Settings->Other Linker Flags)
To run the app on iOS9, please add the below code in info.plist

<key>NSAppTransportSecurity</key> <dict> <key>NSAllowsArbitraryLoads</key> <true/> </dict>

1
2
3
4
5

<key>NSAppTransportSecurity</key>
   <dict>
   <key>NSAllowsArbitraryLoads</key>
   <true/>
  </dict>

6: In AppDelegate.h add the below property

@property (weak, nonatomic) UIViewController *paymentOptionVC;

7: suppose you want to integrate into some class lets checkout class (example)

8: do some changes in .h file of checkout class

#import <UIKit/UIKit.h>

#import “PUUIBaseVC.h”

@interface checkout: PUUIBaseVC

9: Here I am giving .m file of checkout class .

//
//  checkout.m
//  PayU
//
//  Created by kunal prasad on 09/08/16.
//  Copyright © 2016 Webkul. All rights reserved.
//

#import "checkout.h"
#import "PUUIPaymentOptionVC.h"
#import "PUSAHelperClass.h"
#import "iOSDefaultActivityIndicator.h"

@interface checkout ()
@property (strong, nonatomic) PayUWebServiceResponse *webServiceResponse;
@property (strong, nonatomic) iOSDefaultActivityIndicator *defaultActivityIndicator;
@end
//PayUModelPaymentParams *paymentParam;
@implementation checkout

- (void)viewDidLoad {
    [super viewDidLoad];
    [self.buttonPressed addTarget:self action:@selector(btnClicked:) forControlEvents:UIControlEventTouchUpInside];
    [self addPaymentResponseNotofication];
    self.defaultActivityIndicator = [iOSDefaultActivityIndicator new];
    self.paymentParam = [PayUModelPaymentParams new];
    self.webServiceResponse = [PayUWebServiceResponse new];
    
}

-(void)btnClicked:(id)sender{
    [self dismissKeyboard];
    [self.defaultActivityIndicator startAnimatingActivityIndicatorWithSelfView:self.view];
    self.view.userInteractionEnabled = NO;
    //self.defaultActivityIndicator = [iOSDefaultActivityIndicator new];
    //self.paymentParam = [PayUModelPaymentParams new];
    
    //PayUModelHashes *hashes = [[PayUModelHashes alloc] init];// Set the hashes here
    self.paymentParam.firstName = @"Ram";
    self.paymentParam.key = @"0MQaQP";
    self.paymentParam.transactionID = [PUSAHelperClass getTransactionIDWithLength:15];
    self.paymentParam.amount = @"110.0";
    self.paymentParam.productInfo = @"Nokia";
    self.paymentParam.SURL = @"https://payu.herokuapp.com/success";
    self.paymentParam.FURL = @"https://payu.herokuapp.com/failure";
    self.paymentParam.phoneNumber = @"1111111111";
    self.paymentParam.email = @"email@testsdk1.com";
    self.paymentParam.udf1 = @"u1";
    self.paymentParam.udf2 = @"u2";
    self.paymentParam.udf3 = @"u3";
    self.paymentParam.udf4 = @"u4";
    self.paymentParam.udf5 = @"u5";
    
    self.scrollView = nil;
    
    // Set the environment according to merchant key ENVIRONMENT_PRODUCTION for Production &
    // ENVIRONMENT_MOBILETEST for mobiletest environment:
    self.paymentParam.environment = ENVIRONMENT_PRODUCTION;
    
    // Set this property if you want to give offer:
    self.paymentParam.offerKey = @"test123@6622"; ////bins@8427,srioffer@8428,cc2@8429,gtkffx@7236
    
    // Set this property if you want to get the stored cards:
    self.paymentParam.userCredentials = @"ra:ra";
    [PUSAHelperClass generateHashFromServer:self.paymentParam withCompletionBlock:^(PayUModelHashes *hashes, NSString *errorString) {
        [self callSDKWithHashes:hashes withError:errorString];
    }];

}
-(void)callSDKWithHashes:(PayUModelHashes *) allHashes withError:(NSString *) errorMessage{
    if (errorMessage == nil) {
        self.paymentParam.hashes = allHashes;
    }
    [self callSDKWithOneTap:nil];
    [self.defaultActivityIndicator stopAnimatingActivityIndicator];

}
-(void)viewWillAppear:(BOOL)animated{
    [super viewWillAppear:true];
}

-(void) callSDKWithOneTap:(NSDictionary *)oneTapDict{
    self.paymentParam.OneTapTokenDictionary = oneTapDict;
    PayUWebServiceResponse *respo = [PayUWebServiceResponse new];
    self.webServiceResponse = [PayUWebServiceResponse new];
    [self.webServiceResponse getPayUPaymentRelatedDetailForMobileSDK:self.paymentParam withCompletionBlock:^(PayUModelPaymentRelatedDetail *paymentRelatedDetails, NSString *errorMessage, id extraParam) {
        
        [self.defaultActivityIndicator stopAnimatingActivityIndicator];
        
        if (!errorMessage) {
            [respo callVASForMobileSDKWithPaymentParam:self.paymentParam];
            UIStoryboard *stryBrd = [UIStoryboard
                                     storyboardWithName:@"PUUIMainStoryBoard" bundle:nil];
            PUUIPaymentOptionVC *paymentOptionVC = [stryBrd instantiateViewControllerWithIdentifier:VC_IDENTIFIER_PAYMENT_OPTION];
            
            paymentOptionVC.paymentParam = self.paymentParam;
            paymentOptionVC.paymentRelatedDetail = paymentRelatedDetails;
            [self.navigationController pushViewController:paymentOptionVC animated:true];
        }
        else{
            NSLog(@" %@",errorMessage);
        }
    }];
    
}
-(void) dealloc{
    [[NSNotificationCenter defaultCenter] removeObserver:self];
}
-(void)addPaymentResponseNotofication{
    [[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(responseReceived:) name:kPUUINotiPaymentResponse object:nil];
}

-(void)responseReceived:(NSNotification *) notification{
        NSLog(@"Response Received message from server");
        [self.navigationController popToRootViewControllerAnimated:NO];
        //    self.textFieldTransactionID.text = [PUSAHelperClass getTransactionIDWithLength:15];
        NSString *strConvertedRespone = [NSString stringWithFormat:@"%@",notification.object];
        NSLog(@"Response Received %@",strConvertedRespone);
    
        NSError *serializationError;
        id JSON = [NSJSONSerialization JSONObjectWithData:[strConvertedRespone dataUsingEncoding:NSUTF8StringEncoding] options:kNilOptions error:&serializationError];
        if (serializationError == nil && notification.object) {
            NSLog(@"%@",JSON);
            //PAYUALERT([JSON objectForKey:@"status"], strConvertedRespone);
            if ([[JSON objectForKey:@"status"] isEqual:@"success"]) {
                NSString *merchant_hash = [JSON objectForKey:@"merchant_hash"];
                if ([[JSON objectForKey:@"card_token"] length] >1 && merchant_hash.length >1 && paymentParam) {
                    NSLog(@"Saving merchant hash---->");
                    [PUSAHelperClass saveOneTapTokenForMerchantKey:paymentParam.key withCardToken:[JSON objectForKey:@"card_token"] withUserCredential:paymentParam.userCredentials andMerchantHash:merchant_hash withCompletionBlock:^(NSString *message, NSString *errorString) {
                        if (errorString == nil) {
                            NSLog(@"Merchant Hash saved succesfully %@",message);
                        }
                        else{
                            NSLog(@"Error while saving merchant hash %@", errorString);
                        }
                    }];
                }
            }
        }
        else{
            PAYUALERT(@"Response", strConvertedRespone);
        }
}

@end

100

101

102

103

104

105

106

107

108

109

110

111

112

113

114

115

116

117

118

119

120

121

122

123

124

125

126

127

128

129

130

131

132

133

134

135

136

137

138

139

140

141

142

143

144

145

146

147

148

149

// checkout.m

// PayU

// Created by kunal prasad on 09/08/16.

#import "checkout.h"

#import "PUUIPaymentOptionVC.h"

#import "PUSAHelperClass.h"

#import "iOSDefaultActivityIndicator.h"

@interface checkout ()

@property (strong, nonatomic) PayUWebServiceResponse *webServiceResponse;

@property (strong, nonatomic) iOSDefaultActivityIndicator *defaultActivityIndicator;

@end

//PayUModelPaymentParams *paymentParam;

@implementation checkout

- (void)viewDidLoad {

[super viewDidLoad];

[self.buttonPressed addTarget:self action:@selector(btnClicked:) forControlEvents:UIControlEventTouchUpInside];

[self addPaymentResponseNotofication];

self.defaultActivityIndicator = [iOSDefaultActivityIndicator new];

self.paymentParam = [PayUModelPaymentParams new];

self.webServiceResponse = [PayUWebServiceResponse new];

}

-(void)btnClicked:(id)sender{

[self dismissKeyboard];

[self.defaultActivityIndicator startAnimatingActivityIndicatorWithSelfView:self.view];

self.view.userInteractionEnabled = NO;

//self.defaultActivityIndicator = [iOSDefaultActivityIndicator new];

//self.paymentParam = [PayUModelPaymentParams new];

//PayUModelHashes *hashes = [[PayUModelHashes alloc] init];// Set the hashes here

self.paymentParam.firstName = @"Ram";

self.paymentParam.key = @"0MQaQP";

self.paymentParam.transactionID = [PUSAHelperClass getTransactionIDWithLength:15];

self.paymentParam.amount = @"110.0";

self.paymentParam.productInfo = @"Nokia";

self.paymentParam.SURL = @"https://payu.herokuapp.com/success";

self.paymentParam.FURL = @"https://payu.herokuapp.com/failure";

self.paymentParam.phoneNumber = @"1111111111";

self.paymentParam.email = @"email@testsdk1.com";

self.paymentParam.udf1 = @"u1";

self.paymentParam.udf2 = @"u2";

self.paymentParam.udf3 = @"u3";

self.paymentParam.udf4 = @"u4";

self.paymentParam.udf5 = @"u5";

self.scrollView = nil;

// Set the environment according to merchant key ENVIRONMENT_PRODUCTION for Production &

// ENVIRONMENT_MOBILETEST for mobiletest environment:

self.paymentParam.environment = ENVIRONMENT_PRODUCTION;

// Set this property if you want to give offer:

self.paymentParam.offerKey = @"test123@6622"; ////bins@8427,srioffer@8428,cc2@8429,gtkffx@7236

// Set this property if you want to get the stored cards:

self.paymentParam.userCredentials = @"ra:ra";

[PUSAHelperClass generateHashFromServer:self.paymentParam withCompletionBlock:^(PayUModelHashes *hashes, NSString *errorString) {

[self callSDKWithHashes:hashes withError:errorString];

}];

}

-(void)callSDKWithHashes:(PayUModelHashes *) allHashes withError:(NSString *) errorMessage{

if (errorMessage == nil) {

self.paymentParam.hashes = allHashes;

}

[self callSDKWithOneTap:nil];

[self.defaultActivityIndicator stopAnimatingActivityIndicator];

}

-(void)viewWillAppear:(BOOL)animated{

[super viewWillAppear:true];

}

-(void) callSDKWithOneTap:(NSDictionary *)oneTapDict{

self.paymentParam.OneTapTokenDictionary = oneTapDict;

PayUWebServiceResponse *respo = [PayUWebServiceResponse new];

self.webServiceResponse = [PayUWebServiceResponse new];

[self.webServiceResponse getPayUPaymentRelatedDetailForMobileSDK:self.paymentParam withCompletionBlock:^(PayUModelPaymentRelatedDetail *paymentRelatedDetails, NSString *errorMessage, id extraParam) {

[self.defaultActivityIndicator stopAnimatingActivityIndicator];

if (!errorMessage) {

[respo callVASForMobileSDKWithPaymentParam:self.paymentParam];

UIStoryboard *stryBrd = [UIStoryboard

storyboardWithName:@"PUUIMainStoryBoard" bundle:nil];

PUUIPaymentOptionVC *paymentOptionVC = [stryBrd instantiateViewControllerWithIdentifier:VC_IDENTIFIER_PAYMENT_OPTION];

paymentOptionVC.paymentParam = self.paymentParam;

paymentOptionVC.paymentRelatedDetail = paymentRelatedDetails;

[self.navigationController pushViewController:paymentOptionVC animated:true];

}

else{

NSLog(@" %@",errorMessage);

}

}];

}

-(void) dealloc{

[[NSNotificationCenter defaultCenter] removeObserver:self];

}

-(void)addPaymentResponseNotofication{

[[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(responseReceived:) name:kPUUINotiPaymentResponse object:nil];

}

-(void)responseReceived:(NSNotification *) notification{

NSLog(@"Response Received message from server");

[self.navigationController popToRootViewControllerAnimated:NO];

// self.textFieldTransactionID.text = [PUSAHelperClass getTransactionIDWithLength:15];

NSString *strConvertedRespone = [NSString stringWithFormat:@"%@",notification.object];

NSLog(@"Response Received %@",strConvertedRespone);

NSError *serializationError;

id JSON = [NSJSONSerialization JSONObjectWithData:[strConvertedRespone dataUsingEncoding:NSUTF8StringEncoding] options:kNilOptions error:&serializationError];

if (serializationError == nil && notification.object) {

NSLog(@"%@",JSON);

//PAYUALERT([JSON objectForKey:@"status"], strConvertedRespone);

if ([[JSON objectForKey:@"status"] isEqual:@"success"]) {

NSString *merchant_hash = [JSON objectForKey:@"merchant_hash"];

if ([[JSON objectForKey:@"card_token"] length] >1 && merchant_hash.length >1 && paymentParam) {

NSLog(@"Saving merchant hash---->");

[PUSAHelperClass saveOneTapTokenForMerchantKey:paymentParam.key withCardToken:[JSON objectForKey:@"card_token"] withUserCredential:paymentParam.userCredentials andMerchantHash:merchant_hash withCompletionBlock:^(NSString *message, NSString *errorString) {

if (errorString == nil) {

NSLog(@"Merchant Hash saved succesfully %@",message);

}

else{

NSLog(@"Error while saving merchant hash %@", errorString);

}

}];

}

else{

PAYUALERT(@"Response", strConvertedRespone);

}

@end

10: above value is dummy data for testing purpose.

11: Now I am attaching two file for generating Hash Value , here i am using for only dummy checking so if you want to configure for live payment then you have to write your server file for generating HASH VALUE.

live: https://github.com/payu-intrepos/Documentations/wiki/4.-Server-Side

//
//  PUSAHelperClass.m
//  PayUNonSeamlessTestApp

#import "PUSAHelperClass.h"

NSString *const URLGetHash = @"https://payu.herokuapp.com/get_hash";
NSString *const URLGetMerchantHash = @"https://payu.herokuapp.com/get_merchant_hashes";
NSString *const URLStoreMerchantHash = @"https://payu.herokuapp.com/store_merchant_hash";

@implementation PUSAHelperClass

// To get Hashes from server

+(void) generateHashFromServer:(PayUModelPaymentParams *) paymentParam withCompletionBlock:(hashRequestCompletionBlock)completionBlock{
    
    void(^serverResponseForHashGenerationCallback)(PayUModelHashes *hashes, NSString *errorString) = completionBlock;
    
    NSMutableString *postParam = [NSMutableString new];
    
    if (paymentParam.offerKey) {
        [postParam appendFormat:@"offer_key=%@",paymentParam.offerKey];
    }
    if (paymentParam.key) {
        [postParam appendFormat:@"&key=%@",paymentParam.key];
    }
    if (paymentParam.hashes.paymentHash) {
        [postParam appendFormat:@"&hash=%@",paymentParam.hashes.paymentHash];
    }
    if (paymentParam.email) {
        [postParam appendFormat:@"&email=%@",paymentParam.email];
    }
    if (paymentParam.amount) {
        [postParam appendFormat:@"&amount=%@",paymentParam.amount];
    }
    if (paymentParam.firstName) {
        [postParam appendFormat:@"&firstname=%@",paymentParam.firstName];
    }
    if (paymentParam.transactionID) {
        [postParam appendFormat:@"&txnid=%@",paymentParam.transactionID];
    }
    if (paymentParam.userCredentials) {
        [postParam appendFormat:@"&user_credentials=%@",paymentParam.userCredentials];
    }
    if (paymentParam.udf1) {
        [postParam appendFormat:@"&udf1=%@",paymentParam.udf1];
    }
    if (paymentParam.udf2) {
        [postParam appendFormat:@"&udf2=%@",paymentParam.udf2];
    }
    if (paymentParam.udf3) {
        [postParam appendFormat:@"&udf3=%@",paymentParam.udf3];
    }
    if (paymentParam.udf4) {
        [postParam appendFormat:@"&udf4=%@",paymentParam.udf4];
    }
    if (paymentParam.udf5) {
        [postParam appendFormat:@"&udf5=%@",paymentParam.udf5];
    }
    if (paymentParam.productInfo) {
        [postParam appendFormat:@"&productinfo=%@",paymentParam.productInfo];
    }
    
    NSLog(@"-->>Hash generation Post Param = %@",postParam);
    
    [PUSAWSManager getWebServiceResponse:[PUSAWSManager getURLRequestWithPostParam:postParam withURL:[NSURL URLWithString:URLGetHash]] withCompletionBlock:^(id JSON, NSString *errorMessage, id extraParam) {
        if (JSON) {
            if([[JSON objectForKey:@"message"] isEqualToString:@"successfully generated hash"]){
                PayUModelHashes *payUHashes = [PayUModelHashes new];
                payUHashes.paymentHash = [JSON objectForKey:@"payment_hash"];
                payUHashes.paymentRelatedDetailsHash = [JSON objectForKey:@"payment_related_details_for_mobile_sdk_hash"];
                payUHashes.VASForMobileSDKHash = [JSON objectForKey:@"vas_for_mobile_sdk_hash"];
                payUHashes.deleteUserCardHash = [JSON objectForKey:@"delete_user_card_hash"];
                payUHashes.editUserCardHash = [JSON objectForKey:@"edit_user_card_hash"];
                payUHashes.saveUserCardHash = [JSON objectForKey:@"save_user_card_hash"];
                payUHashes.getUserCardHash = [JSON objectForKey:@"get_user_cards_hash"];
                payUHashes.offerHash = [JSON objectForKey:@"check_offer_status_hash"];
                serverResponseForHashGenerationCallback(payUHashes ,nil);
            }
            else{
                serverResponseForHashGenerationCallback(nil,[JSON objectForKey:@"message"]);
            }
            
        }
        else{
            serverResponseForHashGenerationCallback(nil,errorMessage);
        }
    }];
}

// To get transactionID

+(NSString *) getTransactionIDWithLength:(int) len {
    NSString *letters = @"abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789";
    
    NSMutableString *randomString = [NSMutableString stringWithCapacity: len];
    
    for (int i=0; i<len; i++) {
        [randomString appendFormat: @"%C", [letters characterAtIndex: arc4random_uniform((u_int32_t)[letters length])]];
    }
    
    return randomString;
}

@end

100

101

102

103

104

105

106

107

// PUSAHelperClass.m

// PayUNonSeamlessTestApp

#import "PUSAHelperClass.h"

NSString *const URLGetHash = @"https://payu.herokuapp.com/get_hash";

NSString *const URLGetMerchantHash = @"https://payu.herokuapp.com/get_merchant_hashes";

NSString *const URLStoreMerchantHash = @"https://payu.herokuapp.com/store_merchant_hash";

@implementation PUSAHelperClass

// To get Hashes from server

+(void) generateHashFromServer:(PayUModelPaymentParams *) paymentParam withCompletionBlock:(hashRequestCompletionBlock)completionBlock{

void(^serverResponseForHashGenerationCallback)(PayUModelHashes *hashes, NSString *errorString) = completionBlock;

NSMutableString *postParam = [NSMutableString new];

if (paymentParam.offerKey) {

[postParam appendFormat:@"offer_key=%@",paymentParam.offerKey];

}

if (paymentParam.key) {

[postParam appendFormat:@"&key=%@",paymentParam.key];

}

if (paymentParam.hashes.paymentHash) {

[postParam appendFormat:@"&hash=%@",paymentParam.hashes.paymentHash];

}

if (paymentParam.email) {

[postParam appendFormat:@"&email=%@",paymentParam.email];

}

if (paymentParam.amount) {

[postParam appendFormat:@"&amount=%@",paymentParam.amount];

}

if (paymentParam.firstName) {

[postParam appendFormat:@"&firstname=%@",paymentParam.firstName];

}

if (paymentParam.transactionID) {

[postParam appendFormat:@"&txnid=%@",paymentParam.transactionID];

}

if (paymentParam.userCredentials) {

[postParam appendFormat:@"&user_credentials=%@",paymentParam.userCredentials];

}

if (paymentParam.udf1) {

[postParam appendFormat:@"&udf1=%@",paymentParam.udf1];

}

if (paymentParam.udf2) {

[postParam appendFormat:@"&udf2=%@",paymentParam.udf2];

}

if (paymentParam.udf3) {

[postParam appendFormat:@"&udf3=%@",paymentParam.udf3];

}

if (paymentParam.udf4) {

[postParam appendFormat:@"&udf4=%@",paymentParam.udf4];

}

if (paymentParam.udf5) {

[postParam appendFormat:@"&udf5=%@",paymentParam.udf5];

}

if (paymentParam.productInfo) {

[postParam appendFormat:@"&productinfo=%@",paymentParam.productInfo];

}

NSLog(@"-->>Hash generation Post Param = %@",postParam);

[PUSAWSManager getWebServiceResponse:[PUSAWSManager getURLRequestWithPostParam:postParam withURL:[NSURL URLWithString:URLGetHash]] withCompletionBlock:^(id JSON, NSString *errorMessage, id extraParam) {

if (JSON) {

if([[JSON objectForKey:@"message"] isEqualToString:@"successfully generated hash"]){

PayUModelHashes *payUHashes = [PayUModelHashes new];

payUHashes.paymentHash = [JSON objectForKey:@"payment_hash"];

payUHashes.paymentRelatedDetailsHash = [JSON objectForKey:@"payment_related_details_for_mobile_sdk_hash"];

payUHashes.VASForMobileSDKHash = [JSON objectForKey:@"vas_for_mobile_sdk_hash"];

payUHashes.deleteUserCardHash = [JSON objectForKey:@"delete_user_card_hash"];

payUHashes.editUserCardHash = [JSON objectForKey:@"edit_user_card_hash"];

payUHashes.saveUserCardHash = [JSON objectForKey:@"save_user_card_hash"];

payUHashes.getUserCardHash = [JSON objectForKey:@"get_user_cards_hash"];

payUHashes.offerHash = [JSON objectForKey:@"check_offer_status_hash"];

serverResponseForHashGenerationCallback(payUHashes ,nil);

}

else{

serverResponseForHashGenerationCallback(nil,[JSON objectForKey:@"message"]);

}

else{

serverResponseForHashGenerationCallback(nil,errorMessage);

}

}];

}

// To get transactionID

+(NSString *) getTransactionIDWithLength:(int) len {

NSString *letters = @"abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789";

NSMutableString *randomString = [NSMutableString stringWithCapacity: len];

for (int i=0; i<len; i++) {

[randomString appendFormat: @"%C", [letters characterAtIndex: arc4random_uniform((u_int32_t)[letters length])]];

}

return randomString;

}

@end

#import "PUSAWSManager.h"

@implementation PUSAWSManager

+(NSMutableURLRequest *)getURLRequestWithPostParam:(NSString *) postParam withURL:(NSURL *) paramURL{
    NSMutableURLRequest *request;
    request = [NSMutableURLRequest requestWithURL:paramURL cachePolicy:NSURLRequestUseProtocolCachePolicy timeoutInterval:60.0];
    [request setValue:@"application/x-www-form-urlencoded; charset=utf-8" forHTTPHeaderField:@"Content-Type"];
    if (postParam) {
        request.HTTPMethod = @"POST";
        [request setHTTPBody:[postParam dataUsingEncoding:NSUTF8StringEncoding]];
    }
    else{
        request.HTTPMethod = @"GET";
    }
    return request;
}

+(void)getWebServiceResponse:(NSMutableURLRequest *) webServiceRequest withCompletionBlock:(completionBlockForWebServiceResponse) completionBlock{
    void(^callBackForWebServiceResponse)(id JSON ,NSString *errorMessage, id extraParam) = completionBlock;
    
    NSURLSession *defaultSession = [NSURLSession sharedSession];
    NSURLSessionDataTask *dataTask = [defaultSession dataTaskWithRequest:webServiceRequest completionHandler:^(NSData * data, NSURLResponse * response, NSError * error) {
        if (error == nil) {
            NSError *parseError = nil;
            id object = [NSJSONSerialization JSONObjectWithData:data options:NSJSONReadingAllowFragments error:&parseError];
            NSLog(@"Response after hitting webService --> %@",object);
            if (parseError == nil) {
                callBackForWebServiceResponse(object,nil,nil);
            }
            else{
                NSLog(@"Parse Error: %@",parseError.localizedDescription);
                callBackForWebServiceResponse(nil,parseError.localizedDescription,nil);
            }
        }
        else{
            NSLog(@"Parse Error: %@",error.localizedDescription);
            callBackForWebServiceResponse(nil,error.localizedDescription,nil);
        }
    }];
    [dataTask resume];
}

@end

// PUSAWSManager.m

// PayUNonSeamlessTestApp

// Created by Umang Arya on 04/01/16.

#import "PUSAWSManager.h"

@implementation PUSAWSManager

+(NSMutableURLRequest *)getURLRequestWithPostParam:(NSString *) postParam withURL:(NSURL *) paramURL{

NSMutableURLRequest *request;

request = [NSMutableURLRequest requestWithURL:paramURL cachePolicy:NSURLRequestUseProtocolCachePolicy timeoutInterval:60.0];

[request setValue:@"application/x-www-form-urlencoded; charset=utf-8" forHTTPHeaderField:@"Content-Type"];

if (postParam) {

request.HTTPMethod = @"POST";

[request setHTTPBody:[postParam dataUsingEncoding:NSUTF8StringEncoding]];

}

else{

request.HTTPMethod = @"GET";

}

return request;

}

+(void)getWebServiceResponse:(NSMutableURLRequest *) webServiceRequest withCompletionBlock:(completionBlockForWebServiceResponse) completionBlock{

void(^callBackForWebServiceResponse)(id JSON ,NSString *errorMessage, id extraParam) = completionBlock;

NSURLSession *defaultSession = [NSURLSession sharedSession];

NSURLSessionDataTask *dataTask = [defaultSession dataTaskWithRequest:webServiceRequest completionHandler:^(NSData * data, NSURLResponse * response, NSError * error) {

if (error == nil) {

NSError *parseError = nil;

id object = [NSJSONSerialization JSONObjectWithData:data options:NSJSONReadingAllowFragments error:&parseError];

NSLog(@"Response after hitting webService --> %@",object);

if (parseError == nil) {

callBackForWebServiceResponse(object,nil,nil);

}

else{

NSLog(@"Parse Error: %@",parseError.localizedDescription);

callBackForWebServiceResponse(nil,parseError.localizedDescription,nil);

}

else{

NSLog(@"Parse Error: %@",error.localizedDescription);

callBackForWebServiceResponse(nil,error.localizedDescription,nil);

}

}];

[dataTask resume];

}

@end

12: Now its works fine and you can set according to your need.