How to pass dictionary as a parameter in JSON - ios

Question

I am new to json, I want to pass dictionary as a parameter along with the url to server, how it can be done while method is post ? Ihad tried sample codes but not found my exact solution.below is my sample code
NSMutableDictionary *callDict =[[NSMutableDictionary alloc] init];
[callDict setObject:#"messages-getModuleMessages" forKey:#"call"];
[callDict setObject:FB_API_KEY forKey:#"accessSecret"];
NSString *x=[FBUserManager sharedUserManager].authToken;
[callDict setObject:x forKey:#"authToken"];
[callDict setObject:#"json" forKey:#"format"];
[callDict setObject:#"inbox" forKey:#"callType"];
NSMutableURLRequest *request=[NSMutableURLRequest requestWithURL:[NSURL URLWithString:#"http://www.fretbay.com/fr/private/api/rest-server.php?",calldict]];//here recieving warning
[request setHTTPMethod:#"GET"];
[request setValue:#"application/json;charset=UTF-8" forHTTPHeaderField:#"content-type"];
NSError *err;
NSURLResponse *response;
NSData *responseData = [NSURLConnection sendSynchronousRequest:request returningResponse:&response error:&err];
NSArray *jsonArray = [NSJSONSerialization JSONObjectWithData:responseData options: NSJSONReadingMutableContainers error: &err]; // here parsing the array

Answer 1

NSDictionary *parameters = #{
#"call": #"messages-getModuleMessages",
#"accessSecret": FB_API_KEY,
#"authToken": [FBUserManager sharedUserManager].authToken,
#"format": #"json",
#"inbox":#"callType"
};
NSData *data = [NSJSONSerialization dataWithJSONObject:parameters options:0 error:nil];
NSMutableURLRequest *request = [NSMutableURLRequest requestWithURL:[NSURL URLWithString:#"http://www.fretbay.com/fr/private/api/rest-server.php?"]];
[request setHTTPMethod:#"POST"];
[request setValue:#"application/json;charset=UTF-8" forHTTPHeaderField:#"content-type"];
NSURLSession *session = [NSURLSession sessionWithConfiguration:[NSURLSessionConfiguration defaultSessionConfiguration]];
NSURLSessionUploadTask *dataTask = [session uploadTaskWithRequest: request
fromData:data completionHandler:^(NSData *data, NSURLResponse *response, NSError *error) {
NSDictionary *json = [NSJSONSerialization JSONObjectWithData:data options:0 error:nil];
NSLog(#"%#", json);
}];
[dataTask resume];

Answer 2

assume that these are your strings
NSString *messages-getModuleMessages=#"messages-getModuleMessages";
NSString * authtincateToken=#"WWc3ZFZCcEtWcGxLTk1hZHhEb2hMelFNZzdGcXgwdTBxeU51NWFwUE44TnkrcnF5SCtSMDxxxxxxx";
NSString *accessSecretkey =#"WWc3ZFZCcEtWcGxLTk1hZHhEb2hMelFNZzdGcXgwdTBxeU51NWFwUE44TnkrcnF5SCtxxxxxxxx";
NSString *inboxvalue =#"hai thios is textmessage";
// this is your dictionary value are you passed
NSDictionary * callDict = [NSDictionary dictionaryWithObjectsAndKeys:messages-getModuleMessages,#"call",authtincateToken,#"authToken", accessSecretkey, #"accessSecret",inboxvalue,#"calotype",#"json",#"format",nil];
// convert your dictionary to NSData
NSData *jsonData = [NSJSONSerialization dataWithJSONObject:callDict options:kNilOptions error:nil];
// this is your service request url
NSMutableURLRequest *request = [NSMutableURLRequest requestWithURL:[NSURL URLWithString:#"http://xxxxxxxx"]];
// set the content as format
[request setHTTPMethod:#"POST"];
[request setHTTPBody: jsonData];
// this is your response type
[request setValue:#"application/json;charset=UTF-8" forHTTPHeaderField:#"content-type"];
NSError *err;
NSURLResponse *response;
// send the synchronous connection
NSData *responseData = [NSURLConnection sendSynchronousRequest:request returningResponse:&response error:&err];
// here add your server response NSJSONSerialization
NSArray *jsonArray = [NSJSONSerialization JSONObjectWithData:responseData options: NSJSONReadingMutableContainers error: &err];
// if u want to check the data in console
NSString *tmp=[[NSString alloc]initWithData:responseData encoding:NSUTF8StringEncoding];
NSLog(#"%#", tmp);

Answer 3

Put following method to Call WebService
- (void) callWebservice_Block : (NSDictionary *) jsonDict :(void(^)(NSDictionary * dic, NSError * err))responseHandler{
NSError * err;
NSData * jsonData = [NSJSONSerialization dataWithJSONObject:jsonDict options:0 error:&err];
NSString * jsonRequest = [[NSString alloc] initWithData:jsonData encoding:NSUTF8StringEncoding];;
NSLog(#"jsonRequest is %#", jsonRequest);
NSURL *url = [NSURL URLWithString:#"Past your URL Here"];
NSMutableURLRequest *request = [NSMutableURLRequest requestWithURL:url
cachePolicy:NSURLRequestUseProtocolCachePolicy timeoutInterval:60.0];
NSData *requestData = [jsonRequest dataUsingEncoding:NSUTF8StringEncoding];
[request setHTTPMethod:#"POST"];
[request setValue:#"application/json" forHTTPHeaderField:#"Accept"];
[request setValue:#"application/json" forHTTPHeaderField:#"Content-Type"];
[request setValue:[NSString stringWithFormat:#"%d", [requestData length]] forHTTPHeaderField:#"Content-Length"];
[request setHTTPBody: requestData];
[NSURLConnection sendAsynchronousRequest:request queue:[NSOperationQueue mainQueue] completionHandler:^(NSURLResponse *response, NSData *data, NSError *error) {
if (error) {
responseHandler (nil,error);
} else {
NSDictionary * returnDict = [NSJSONSerialization JSONObjectWithData:data
options: NSJSONReadingMutableContainers
error: &error];
responseHandler (returnDict,nil);
}
}];}
you can Call Method via following way.
NSDictionary *jsonDict = [NSDictionary dictionaryWithObjectsAndKeys:#"FirstValue",#"FirstKey",#"SecondValue",#"SecondKey", nil];
[self callWebservice_Block:jsonDict :^(NSDictionary *dic, NSError *err) {
if(!err){
NSLog(#"Got Response :- %#",dic);
}
}];