I have to integrate PayUMoney payment gateway in my iOS app. They don't have SDK for iOS. So I have to load some web URL in webview for the payment. My parameters are
int i = arc4random() % 9999999999;
NSString *strHash = [self createSHA512:[NSString stringWithFormat:@"%d%@",i,[NSDate date]]];// Generatehash512(rnd.ToString() + DateTime.Now);
NSString *txnid1 = [strHash substringToIndex:20];
NSLog(@"tnx1 id %@",txnid1);
NSString *key = @"JBZaLc";
NSString *amount = @"1000";
NSString *productInfo = @"Nice product";
NSString *firstname = @"Mani";
NSString *email = @"mani.ingenius@gmail.com";
NSString *phone = @"1234566";
NSString *surl = @"www.google.com";
NSString *furl = @"www.google.com";
NSString *serviceprovider = @"payu_paisa";
NSString *action = @"https://test.payu.in/_payment";
NSString *hashValue = [NSString stringWithFormat:@"%@|%@|%@|%@|%@|%@|udf1|udf2|udf3|udf4|udf5||||||salt",key,txnid1,amount,productInfo,firstname,email];
NSString *hash = [self createSHA512:hashValue];
NSDictionary *parameters = [NSDictionary dictionaryWithObjects:[NSArray arrayWithObjects:txnid1,key,amount,productInfo,firstname,email,phone,surl,furl,hash,serviceprovider,action, nil] forKeys:[NSArray arrayWithObjects:@"txnid",@"key",@"amount",@"productinfo",@"firstname",@"email",@"phone",@"surl",@"furl",@"hash",@"service_provider",@"action", nil]];
I have to use POST method with my test URL (https://test.payu.in/_payment) and need to pass parameters. I have all parameters with key and value in dictionary("parameters"). So I tried following code
NSData *dataValue = [self getPropertiesAsData:parameters];
NSURLRequest *request = [NSURLRequest requestWithURL:[NSURL URLWithString:@"https://test.payu.in/_payment"]];
// Create a mutable copy of the immutable request and add more headers
NSMutableURLRequest *mutableRequest = [request mutableCopy];
[mutableRequest setHTTPMethod: @"POST"];
[mutableRequest setHTTPBody: dataValue];
request = [mutableRequest copy];
[_webviewSample loadRequest:request];
-(NSData *)getPropertiesAsData :(NSDictionary *)dict{
NSMutableData *body = [NSMutableData postData];
[dict enumerateKeysAndObjectsUsingBlock:^(id key, id obj, BOOL *stop) {
[body addValue:[obj stringByReplacingOccurrencesOfString:@" " withString:@"%20"] forKey:key];
}];
return body;
}
-(NSString *)createSHA512:(NSString *)string
{
const char *cstr = [string cStringUsingEncoding:NSUTF8StringEncoding];
NSData *data = [NSData dataWithBytes:cstr length:string.length];
uint8_t digest[CC_SHA512_DIGEST_LENGTH];
CC_SHA512(data.bytes, data.length, digest);
NSMutableString* output = [NSMutableString stringWithCapacity:CC_SHA512_DIGEST_LENGTH * 2];
for(int i = 0; i < CC_SHA512_DIGEST_LENGTH; i++)
[output appendFormat:@"%02x", digest[i]];
return output;
}
But when I run this, it says "Mandatory parameter tnxid is missing". But I have passed the tnxid which you can see in parameters dictionary. If I pass everything correctly then result will be the webpage where user can select bank details, etc that I have to load it in my web view.
Please help me to find what I did wrong or what I should do to get correct result.
