iOS Post JSON Array. Wrap it up and send it away.

[IDMah]

Hi all Nob Question... of the day.

I'd like to take an array of High Score Objects, and send them all as one JSON Array. I can do this right?

Here's what I have so far. I'm definitely confused as the code probably tells, and not sure I'm even approaching this correctly..

-(void) sendQuedItemsNow
{
    NSLog(@"Sending Qued Data");
      
    NSURL *url = [NSURL URLWithString:@"http://localhost"]; 
    AFHTTPClient *httpClient = [[AFHTTPClient alloc] initWithBaseURL:url];
    
    // SingletonCentre is a singleton that holds the mutable array myQuedHighScores 
    // which holds HighScoreKeeper objects I want to send //

    SingletonCentre *sharedHSData = [SingletonCentre sharedSingleton];
    
    NSMutableArray* sendAllJSONDICT = [[NSMutableArray alloc]init];
    NSLog(@"Found Qued HighScores: %i",[sharedHSData.myQuedHighScores count]);
    
    for (HighScoreKeeper *myHighscoreToSend in sharedHSData.myQuedHighScores ) {
        NSLog(@"name: %@ time: %@ gametime: %i",myHighscoreToSend.name,myHighscoreToSend.gameTime,
          myHighscoreToSend.gameTimeSeconds);
        
        NSDictionary *params = [NSDictionary dictionaryWithObjectsAndKeys:
                                myHighscoreToSend.name,@"userName",
                                myHighscoreToSend.gameTime,@"userID",
                                [NSNumber numberWithInt:myHighscoreToSend.gameTimeSeconds],@"score",
                                nil];

        [sendAllJSONDICT addObject:params];
        
       
    }    
   NSData *jsonData = [NSJSONSerialization dataWithJSONObject:sendAllJSONDICT options:NSJSONWritingPrettyPrinted error:nil];
    NSString *jsonString = [[NSString alloc] initWithData:jsonData encoding:NSUTF8StringEncoding];
    
   
 NSLog(@"jsonData sending string:\n%@", jsonString);  
    
 // ***What do I do now.???? Defiantly where I'm stuck !! **** //
  NSDictionary *paramsit = [NSDictionary dictionaryWithObjectsAndKeys:@{jsonString,nil}];
 
    [httpClient postPath:@"/registar_working_score.php" parameters:paramsit success:^(AFHTTPRequestOperation *operation, id responseObject) {
        NSString *responseStr = [[NSString alloc] initWithData:responseObject encoding:NSUTF8StringEncoding];
        NSLog(@"Request Successful, response '%@'", responseStr);
        sharedHSData.queuedItems--;
        // if the HighScore was sent then return YES if not NO //
        sharedHSData.errorUploading=NO;
        [[NSNotificationCenter defaultCenter] postNotificationName:@"OKTOUPDATEHIGHSCORES" object:nil];
        
    } failure:^(AFHTTPRequestOperation *operation, NSError *error) {
        NSLog(@"[HTTPClient Error]: %@", error.localizedDescription);
        sharedHSData.errorUploading=YES; 
        [[NSNotificationCenter defaultCenter] postNotificationName:@"SHOWMETHESTATUSE" object:nil];
        
    }];
}

Here's the output:

2013-10-12 15:46:59.294 UIScrollView-Paging-networked[3567:207] Sending Qued Data
2013-10-12 15:46:59.301 UIScrollView-Paging-networked[3567:207] Found Qued HighScores: 4
2013-10-12 15:46:59.302 UIScrollView-Paging-networked[3567:207] name: UghBugs time: 00:08:01 gametime: 481
2013-10-12 15:46:59.302 UIScrollView-Paging-networked[3567:207] name: 1 UghBugs time: 00:08:02 gametime: 0
2013-10-12 15:46:59.302 UIScrollView-Paging-networked[3567:207] name: 2 UghBugs time: 00:08:03 gametime: 0
2013-10-12 15:46:59.302 UIScrollView-Paging-networked[3567:207] name: 3 UghBugs time: 00:08:32 gametime: 0
2013-10-12 15:46:59.303 UIScrollView-Paging-networked[3567:207] jsonData sending string:
[
  {
    "userName" : "UghBugs",
    "userID" : "00:08:01",
    "score" : 481
  },
  {
    "userName" : "1 UghBugs",
    "userID" : "00:08:02",
    "score" : 0
  },
  {
    "userName" : "2 UghBugs",
    "userID" : "00:08:03",
    "score" : 0
  },
  {
    "userName" : "3 UghBugs",
    "userID" : "00:08:32",
    "score" : 0
  }
]
2013-10-12 15:46:59.304 UIScrollView-Paging-networked[3567:207] *** Terminating app due to uncaught exception 'NSInvalidArgumentException', reason: '+[NSDictionary dictionaryWithObjectsAndKeys:]: second object of each pair must be non-nil.  Or, did you forget to nil-terminate your parameter list?'

 

[Sonnestah]

Good lord mate, your code is a mess

Why do you need this?

NSDictionary *paramsit = [NSDictionary dictionaryWithObjectsAndKeys:@{jsonString,nil}];

You got your json string already, no need to put it into a NSDictionary, plus its wrong!

 

[IDMah]

I know.. Sorry!!! I'm new to all this..

But:

    [httpClient postPath:@"/registar_working_score.php" parameters:paramsit success:^(AFHTTPRequestOperation *operation, id responseObject) {
        NSString *responseStr = [[NSString alloc] initWithData:responseObject encoding:NSUTF8StringEncoding];

Seems to want a NSDictionary for parameters. SO I was Grasping at straws.

I think I found what I needed.

// for nubes like me I think this just casts a string as a dictionary 
NSDictionary *paramss =(NSDictionary *)jsonString;

Now I just have to modify PHP to receive a JSON Array.

 

[Sonnestah]

I know.. Sorry!!! I'm new to all this..

But:

    [httpClient postPath:@"/registar_working_score.php" parameters:paramsit success:^(AFHTTPRequestOperation *operation, id responseObject) {
        NSString *responseStr = [[NSString alloc] initWithData:responseObject encoding:NSUTF8StringEncoding];

seems to want a NSDictionary for parameters. SO I'm Grasping at straws.

Haha no problem

This should be enough to send a post request:

    NSData *payloadData = [jsonString dataUsingEncoding:NSUTF8StringEncoding];
    
    NSMutableURLRequest *request = [NSMutableURLRequest requestWithURL:[NSURL URLWithString:@"[B]YOUR FULL URL[/B]"]];
    [request setHTTPMethod:@"POST"];
    [request setHTTPBody:payloadData];
    
    [NSURLConnection sendAsynchronousRequest:request
                                       queue:[NSOperationQueue mainQueue]
                           completionHandler:^(NSURLResponse *response, NSData *data, NSError *error) {
                               
                               NSString *responseString = [[NSString alloc] initWithData:data encoding:NSUTF8StringEncoding];
                               
                              //Check the contents of responseString

                           }];

 

[xStep]

// ***What do I do now.???? Defiantly where I'm stuck !! **** //

NSDictionary *paramsit = [NSDictionary dictionaryWithObjectsAndKeys:@{jsonString,nil}];

You start by reading the documentation for NSDictionary dictionaryWithObjectsAndKeys:. That will allow you to fix the exception.

According the docs, the AFNetworking method you are using does require a NSDictionary, so you are are correct to build it.

It has been a while, but I think you can just place your jsonData into that dictionary as a value. I don't think converting it to a NSString has any value. I'll leave that to you to experiment with.

As for the rest of it, I don't know. I didn't dig that deep.

 

[devilofspades]

Hi all Nob Question... of the day.

I'd like to take an array of High Score Objects, and send them all as one JSON Array. I can do this right?

Here's what I have so far. I'm definitely confused as the code probably tells, and not sure I'm even approaching this correctly..

-(void) sendQuedItemsNow
{
    NSLog(@"Sending Qued Data");
      
    NSURL *url = [NSURL URLWithString:@"http://localhost"]; 
    AFHTTPClient *httpClient = [[AFHTTPClient alloc] initWithBaseURL:url];
    
    // SingletonCentre is a singleton that holds the mutable array myQuedHighScores 
    // which holds HighScoreKeeper objects I want to send //

    SingletonCentre *sharedHSData = [SingletonCentre sharedSingleton];
    
    NSMutableArray* sendAllJSONDICT = [[NSMutableArray alloc]init];
    NSLog(@"Found Qued HighScores: %i",[sharedHSData.myQuedHighScores count]);
    
    for (HighScoreKeeper *myHighscoreToSend in sharedHSData.myQuedHighScores ) {
        NSLog(@"name: %@ time: %@ gametime: %i",myHighscoreToSend.name,myHighscoreToSend.gameTime,
          myHighscoreToSend.gameTimeSeconds);
        
        NSDictionary *params = [NSDictionary dictionaryWithObjectsAndKeys:
                                myHighscoreToSend.name,@"userName",
                                myHighscoreToSend.gameTime,@"userID",
                                [NSNumber numberWithInt:myHighscoreToSend.gameTimeSeconds],@"score",
                                nil];

        [sendAllJSONDICT addObject:params];
        
       
    }    
   NSData *jsonData = [NSJSONSerialization dataWithJSONObject:sendAllJSONDICT options:NSJSONWritingPrettyPrinted error:nil];
    NSString *jsonString = [[NSString alloc] initWithData:jsonData encoding:NSUTF8StringEncoding];
    
   
 NSLog(@"jsonData sending string:\n%@", jsonString);  
    
 // ***What do I do now.???? Defiantly where I'm stuck !! **** //
  NSDictionary *paramsit = [NSDictionary dictionaryWithObjectsAndKeys:@{jsonString,nil}];
 
    [httpClient postPath:@"/registar_working_score.php" parameters:paramsit success:^(AFHTTPRequestOperation *operation, id responseObject) {
        NSString *responseStr = [[NSString alloc] initWithData:responseObject encoding:NSUTF8StringEncoding];
        NSLog(@"Request Successful, response '%@'", responseStr);
        sharedHSData.queuedItems--;
        // if the HighScore was sent then return YES if not NO //
        sharedHSData.errorUploading=NO;
        [[NSNotificationCenter defaultCenter] postNotificationName:@"OKTOUPDATEHIGHSCORES" object:nil];
        
    } failure:^(AFHTTPRequestOperation *operation, NSError *error) {
        NSLog(@"[HTTPClient Error]: %@", error.localizedDescription);
        sharedHSData.errorUploading=YES; 
        [[NSNotificationCenter defaultCenter] postNotificationName:@"SHOWMETHESTATUSE" object:nil];
        
    }];
}

Here's the output:

2013-10-12 15:46:59.294 UIScrollView-Paging-networked[3567:207] Sending Qued Data
2013-10-12 15:46:59.301 UIScrollView-Paging-networked[3567:207] Found Qued HighScores: 4
2013-10-12 15:46:59.302 UIScrollView-Paging-networked[3567:207] name: UghBugs time: 00:08:01 gametime: 481
2013-10-12 15:46:59.302 UIScrollView-Paging-networked[3567:207] name: 1 UghBugs time: 00:08:02 gametime: 0
2013-10-12 15:46:59.302 UIScrollView-Paging-networked[3567:207] name: 2 UghBugs time: 00:08:03 gametime: 0
2013-10-12 15:46:59.302 UIScrollView-Paging-networked[3567:207] name: 3 UghBugs time: 00:08:32 gametime: 0
2013-10-12 15:46:59.303 UIScrollView-Paging-networked[3567:207] jsonData sending string:
[
  {
    "userName" : "UghBugs",
    "userID" : "00:08:01",
    "score" : 481
  },
  {
    "userName" : "1 UghBugs",
    "userID" : "00:08:02",
    "score" : 0
  },
  {
    "userName" : "2 UghBugs",
    "userID" : "00:08:03",
    "score" : 0
  },
  {
    "userName" : "3 UghBugs",
    "userID" : "00:08:32",
    "score" : 0
  }
]
2013-10-12 15:46:59.304 UIScrollView-Paging-networked[3567:207] *** Terminating app due to uncaught exception 'NSInvalidArgumentException', reason: '+[NSDictionary dictionaryWithObjectsAndKeys:]: second object of each pair must be non-nil.  Or, did you forget to nil-terminate your parameter list?'

take this

 NSMutableArray* sendAllJSONDICT = [[NSMutableArray alloc]init];

and make it an NSMutableDictionary then add all your JSON data

 

[IDMah]

Solved

Most of the problems were with my php.
So I wrapped the JSON String in another dictionary.

NSData *jsonData = [NSJSONSerialization dataWithJSONObject:sendAllJSONDICT options:NSJSONWritingPrettyPrinted error:nil];
    NSString *jsonString = [[NSString alloc] initWithData:jsonData encoding:NSUTF8StringEncoding];
   // this is the important part. 
 NSDictionary *paramass =[NSDictionary dictionaryWithObject:jsonString forKey:@"jsonarr"];

 // Basically because I want to keep working with AFNetworking. which wanted a dictionary. 


    [httpClient postPath:@"/myphptodealwithHSs.php" parameters:paramass success:^(AFHTTPRequestOperation *operation, id responseObject) {
// stuff happens // 
} failure:^(AFHTTPRequestOperation *operation, NSError *error) {
// deal with errors 
}

then on the PHP side.

$arr = $_POST['jsonarr'];
$decarr = json_decode($arr,true); // $arr, true
// do some loop to make a long list of values  // 
//  so it can be upload in one Querry // 

$sql = "INSERT INTO HighScore_elements_global(userName, userID, score) VALUES ".implode(',', $values);

Thanks for all your help.. hope this helps someone else!