I want to add value to a response. But the response is in this format
{
"participants": [
{
"lat_long": "0.0,0.0",
"name": "alma"
}
],
"lat_long": "0.0,0.0",
"_id": "52a80a5dccb8137326000027"
}
How can I add values to the keys name & lat_long. I am using Sbjson method.
Thanks in advance.
NSURL * url=[NSURL URLWithString:#"Give your URL Here"];
NSData * data=[NSData dataWithContentsOfURL:url];
NSError * error;
NSMutableDictionary * jsonDic=[NSJSONSerialization JSONObjectWithData:data options:NSJSONReadingMutableLeaves error:&error];
NSLog(#"%#",jsonDic);
NSMutableArray * jsonArray=jsonDic[#"participants"];
NSLog(#"%#",jsonArray);
NSString * str =[jsonArray valueForKey:#"lat_long"];
NSString * str1 =[jsonArray valueForKey:#"name"];
NSLog(#"%#",str);
NSLog(#"%#",str1);
Try this code.
I'm not sure, what you are asking about, but This helps you to get the keys of the Disctionary .
NSDictionary *json = [NSJSONSerialization .....//Parsed JSon
NSMutableDictionary *arrCopy = [json mutableCopy];
NSArray *keys= [json allKeys];
for (NSString *keysV in keys){
NSLog(#"Keys are %#", keysV);
if ([keysV isEqualToString:#"_id"]) {
[arrCopy setValue:#"121213211323" forKey:keysV];
}else if (){
}.......................
}
NSLog(#"After Value added: %#", arrCopy);
Related
I have a JSON like below (getting from an URL)-
{
action :getAllJournal;
data :{
journalList :[{
cancelled : F;
"cust_code" : "700-T022";
"journal_amount" : 2216;
"journal_code" : "JV1603/001";
"journal_date" : "2016-03-15 00:00:00";
"journal_id" : 1;
outstanding : 0;
},
{
cancelled : F;
"cust_code" : "700-0380";
"journal_amount" : 120;
"journal_code" : "JV1605/006";
"journal_date" : "2016-05-31 00:00:00";
"journal_id" : 2;
outstanding : 120;
},
{
cancelled : F;
"cust_code" : "700-T280";
"journal_amount" : 57;
"journal_code" : "JV1609/001";
"journal_date" : "2016-09-22 00:00:00";
"journal_id" : 3;
outstanding : 0;
}
];
};
message = "";
"message_code" = "";
result = 1;}
The code below doing is getting the JSON from URL and storing them in NSMutableArray. Until storing them into array, it's working fine but I'm bit confused with the JSON format and don't know how to get result by a key.
__block NSMutableArray *jsonArray = nil;
[[UIApplication sharedApplication] setNetworkActivityIndicatorVisible:YES];
NSString *urlString = [NSString stringWithFormat:#"http://xxxxxxx/api.php?action=getAllJournal"];
NSURLRequest * request = [NSURLRequest requestWithURL:[NSURL URLWithString:urlString]];
[NSURLConnection sendAsynchronousRequest:request queue:[NSOperationQueue mainQueue] completionHandler:^(NSURLResponse * response, NSData * data, NSError * connectionError)
{
if (data)
{
id myJSON;
#try {
myJSON = [NSJSONSerialization JSONObjectWithData:data options:NSJSONReadingMutableContainers error:nil];
}
#catch (NSException *exception) {
}
#finally {
}
jsonArray = (NSMutableArray *)myJSON;
NSString *nsstring = [jsonArray description];
NSLog(#"IN STRING -> %#",nsstring);
NSData *data = [nsstring dataUsingEncoding:NSUTF8StringEncoding];
NSError *jsonError;
NSDictionary *jsonObject = [NSJSONSerialization JSONObjectWithData:data options:kNilOptions error:&jsonError];
if(jsonObject !=nil){
if(![[jsonObject objectForKey:#"journalList"] isEqual:#""]){
NSMutableArray *array=[jsonObject objectForKey:#"journalList"];
NSLog(#"array: %lu",(unsigned long)array.count);
int k = 0;
for(int z = 0; z<array.count;z++){
NSString *strfd = [NSString stringWithFormat:#"%d",k];
NSDictionary *dicr = jsonObject[#"journalList"][strfd];
k=k+1;
// NSLog(#"dicr: %#",dicr);
NSLog(#"cust_code - journal_amount : %# - %#",
[NSMutableString stringWithFormat:#"%#",[dicr objectForKey:#"cust_code"]],
[NSMutableString stringWithFormat:#"%#",[dicr objectForKey:#"journal_amount"]]);
}
}
}else{
NSLog(#"Error - %#",jsonError);
}
}
}];
From this, I am able to get the JSON successfully. But it's always giving me this error: Error Domain=NSCocoaErrorDomain Code=3840 "No string key for value in an object around character 6." UserInfo={NSDebugDescription=No string key for value in an object around character 6.} How can I get all values from journalList? I'm new to iOS, that's why not sure what I'm missing.
id myJSON;
#try {
myJSON = [NSJSONSerialization JSONObjectWithData:data options:NSJSONReadingMutableContainers error:nil];
}
#catch (NSException *exception) {
}
#finally {
}
jsonArray = (NSMutableArray *)myJSON;
NSString *nsstring = [jsonArray description];
NSLog(#"IN STRING -> %#",nsstring);
NSData *data = [nsstring dataUsingEncoding:NSUTF8StringEncoding];
NSError *jsonError;
NSDictionary *jsonObject = [NSJSONSerialization JSONObjectWithData:data options:kNilOptions error:&jsonError];
I'd say: NO and NO.
I wouldn't do a #try/#catch on a NSJSONSerialization, because the real issues are on the error parameter (and they won't throw a NSException for most of the cases). Just check if (data) is quite efficient.
Then, let's say it worked, and you have myJSON.
In fact, myJSON is a NSDictionary, not a NSArray, so the cast is useless and doesn't make sense.
Next issue:
Your are using -description (okay, if you want to debug), but you CAN'T use it to reconstruct AGAIN a JSON. It's not a valid JSON, it's the way the compiler "print" an object, it adds ";", etc.
If your print [nsstring dataUsingEncoding:NSUTF8StringEncoding] and data you'll see that they aren't the same.
For a more readable:
NSString *dataJSONStr = [[NSString alloc] initWithData:data encoding: NSUTF8StringEncoding];, it's clearly not the same structure as your nsstring.
Then, you are redoing the JSON serialization? Why ?
So:
NSError *errorJSON = nil;
NSDictionary *myJSON = [NSJSONSerialization JSONObjectWithData:data options:0 error:&errorJSON];
if (errorJSON)
{
NSLog(#"Oops error JSON: %#", errorJSON);
}
NSDictionary *data = myJSON[#"data"];
NSArray *journalList = data[#"journalList"]
for (NSDictionary *aJournalDict in journalList)
{
NSUInteger amount = [aJournalDict[#"journal_amount"] integerValue];
NSString *code = aJournalDict[#"journal_code"];
}
There is a dictionary named "data" you're not fetching, represented by {}.
NSDictionary *json = [NSJSONSerialization JSONObjectWithData:data options:kNilOptions error:&jsonError];
if (!jsonError) {
// Fetch the journalList
NSArray *journalList = json[#"data"][#"journalList"];
// iterate over every entry and output the wanted values
for (NSDictionary *journal in journalList) {
NSLog(#"%# %#", journal[#"cust_code"], journal[#"journal_amount"]);
}
}
json[#"key"] is a short form of [json objectForKey:#"key"] I find easier to read.
That is not a valid JSON. Entries should be separated by comma ,, not semicolon ;
You need to fetch journalList from data.
Try below code:
This is demo code to create array like you:
NSMutableDictionary *jsonObject = [NSMutableDictionary new];
jsonObject[#"action"]= #"";
jsonObject[#"message"]= #"";
jsonObject[#"message_code"]= #"";
jsonObject[#"result"]= #"1";
NSMutableArray *ary1 = [NSMutableArray new];
for(int i=0;i<5;i++)
{
NSMutableDictionary *dd = [NSMutableDictionary new];
dd[#"cancelled"]= #"F";
dd[#"cust_code"]= #"F";
[ary1 addObject:dd];
}
NSMutableDictionary *dicjournal = [NSMutableDictionary new];
[dicjournal setObject:ary1 forKey:#"journalList"];
[jsonObject setObject:dicjournal forKey:#"data"];
This is main Logic:
NSMutableArray *journalList = [NSMutableArray new];
NSMutableDictionary *dic = [jsonObject valueForKey:#"data"];
journalList = [[dic objectForKey:#"journalList"] mutableCopy];
Looks like your JSON is invalid. You can see whether your JSON is correct or not using http://jsonviewer.stack.hu/ and moreover format it. Meanwhile your code is not using "data" key to fetch "journalList" array.
Code : -
NSDictionary *dic = [jsonObject valueForKey:#"data"];
NSMutableArray *arr = [dic objectForKey:#"journalList"];
for (int index=0 ; index < arr.count ; index++){
NSDictionary *obj = [arr objectAtIndex:index];
// Now use object for key from this obj to get particular key
}
Thanks #Larme and #Amset for the help. I was doing wrong the in the NSMutableArray part. The correct version of this code is in the below:
[[UIApplication sharedApplication] setNetworkActivityIndicatorVisible:YES];
NSString *urlString = [NSString stringWithFormat:#"http://xxxxxxx/api.php?action=getAllJournal"];
NSURLRequest * request = [NSURLRequest requestWithURL:[NSURL URLWithString:urlString]];
[NSURLConnection sendAsynchronousRequest:request queue:[NSOperationQueue mainQueue] completionHandler:^(NSURLResponse * response, NSData * data, NSError * connectionError)
{
if (data)
{
id myJSON;
#try {
myJSON = [NSJSONSerialization JSONObjectWithData:data options:NSJSONReadingMutableContainers error:nil];
}
#catch (NSException *exception) {
}
#finally {
}
NSArray *journalList = myJSON[#"data"][#"journalList"];
for (NSDictionary *journal in journalList) {
NSLog(#"%# %#", journal[#"journal_date"], journal[#"journal_amount"]);
}
}
}];
I am new to iOS development. I am trying to covert JSOn array values to Objective-C values. My JSON values are like this:
{"result":
[{"alternative":
[{"transcript":"4"},
{"transcript":"four"},
{"transcript":"so"},
{"transcript":"who"}],
"final":true}],
"result_index":0}
I have tried it this way:
NSData *data = [NSData dataWithContentsOfURL:[NSURL URLWithString:speechrequestString]];
NSError *error;
NSDictionary *speechResult= [NSJSONSerialization JSONObjectWithData:data options:kNilOptions error:&error];
NSArray *speechArray= [speechResult valueForKey:#"result"];
NSLog(#"%#",speechArray);
NSLog(#"Response is of type: %#", [speechArray class]);
speechArray is always null. How to resolvee this problem?
At the same time I would like to print transcript values.
I think the problem might be in initializing the array and Dictionary.
Try doing this,
NSDictionary *speechResult = [NSDictionary new];
NSArray *speechArray = [NSArray new];
Hope it helps..
NSDictionary *json = [NSJSONSerialization JSONObjectWithData:data options:0 error:&error];//data is your response from server as NSData
if ([json isKindOfClass:[NSDictionary class]]){ //Added instrospection as suggested in comment.
NSArray * speechArray = json[#"result"];
}
NSLog(#"speech array %#",speechArray);
Did you check the value in NSDictionary (speechResult).
If it is nil, check the json data isValid or not.
NSError *error;
if ([NSJSONSerialization JSONObjectWithData:data
options:kNilOptions
error:&error] == nil)
{
// Check the error here
}else {
// here check whether it is a dictionary and it has key like #Bhadresh Mulsaniya mentioned.
}
If returns nil, then you check the error to understand what's wrong.
try this may be it will help you:-
NSData *data = [NSData dataWithContentsOfURL:[NSURL URLWithString:speechrequestString]];
NSError *error;
NSDictionary *speechResult = [NSDictionary new];
speechResult= [NSJSONSerialization JSONObjectWithData:data options:kNilOptions error:&error];
NSArray *speechArray = [[NSArray alloc]init];
speechArray= [speechResult valueForKey:#"result"];
NSLog(#"%#",speechArray);
NSLog(#"Response is of type: %#", [speechArray class]);
try this code,
restaurantdictionary = [NSJSONSerialization JSONObjectWithData:mutableData options:NSJSONReadingMutableContainers error:&e];
NSMutableArray *main_array=[[NSMutableArray alloc]init];
main_array=[restaurantdictionary valueForKey:#"results"];
NSLog(#"main_array %#", main_array);
its working for me, hope its helpful
You have to initialize the array before using it,
NSData *data = [NSData dataWithContentsOfURL:[NSURL URLWithString:speechrequestString]];
NSError *error;
NSDictionary *speechResult= [NSJSONSerialization JSONObjectWithData:data options:kNilOptions error:&error];
NSArray *speechArray= [[NSArray alloc] init];
speechArray= [speechResult valueForKey:#"result"];
if (speechArray.count>0) {
NSDictionary * alternativeDictn = [speechArray objectAtIndex:0];
NSArray *alternativeAry= [[NSArray alloc] init];
alternativeAry = [alternativeDictn objectForKey:#"alternative"];
NSLog(#"%#",alternativeAry);
}
NSLog(#"Response is of type: %#", [speechArray class]);
Using this code you will get following result,
(
{
transcript = 4;
},
{
transcript = four;
},
{
transcript = so;
},
{
transcript = who;
}
)
Try out the below code to get the transcripts:
NSData* jsonData = [yourJsonString dataUsingEncoding:NSUTF8StringEncoding];
NSError *error = nil;
NSDictionary *responseObj = [NSJSONSerialization
JSONObjectWithData:jsonData
options:0
error:&error];
if(! error) {
NSArray *responseArray = [responseObj objectForKey:#"result"];
for (NSDictionary *alternative in responseArray) {
NSArray *altArray = [alternative objectForKey:#"alternative"];
for (NSDictionary *transcript in altArray) {
NSLog(#"transcript : %#",[transcript objectForKey:#"transcript"]);
}
}
} else {
NSLog(#"Error in parsing JSON");
}
You should alloc your dictionary first like this-
NSDictionary *speechResult = [[NSDictionary alloc]init];
speechResult= [NSJSONSerialization JSONObjectWithData:data options:kNilOptions error:&error];
NSArray *speechArray = [[NSArray alloc]init];
speechArray= [speechResult valueForKey:#"result"];
The code:
NSURL * url=[NSURL URLWithString:#"alamghareeb.com/mobileData.ashx?catid=0&No=10"];
NSData * data=[NSData dataWithContentsOfURL:url];
NSError * error;
NSMutableDictionary * json = [NSJSONSerialization JSONObjectWithData:data options: NSJSONReadingMutableContainers error: &error];
NSMutableArray * referanceArray=[[NSMutableArray alloc]init];
NSMutableArray * periodArray=[[NSMutableArray alloc]init];
NSArray * responseArr = [NSArray arrayWithArray:json[#"item"]];
for (NSDictionary * dict in responseArr) {
[referanceArray addObject:[dict objectForKey:#"created"]];
}
The JSON looks like:
{
"item" = [
{
"id" : "2292",
"created" : "10/01/2015 10:21:18 ص",
"title" : "الإمارات: ملابس رياضية فاخرة لتحسين أداء الإبل في السباقات ",
"image_url" : "http://alamghareeb.com/Photos/L63556482078696289044.jpg",
"image_caption" : ""
},
{
"id" : "2291",
"created" : "10/01/2015 09:28:11 ص",
"title" : "طبيبة تجميل 'مزورة' تحقن مرضاها بالغراء والاسمنت",
"image_url" : "http://alamghareeb.com/Photos/L63556478891290039015.jpg",
"image_caption" : ""
}
]
}
This JSON is not valid. Did you build it manually? The "item" = ... should be "item" : ....
In the future, you can run your JSON through http://jsonlint.com to verify any issues. Likewise, you should add error checking in your Objective-C code, e.g.
NSMutableDictionary *json = [NSJSONSerialization JSONObjectWithData:data options: NSJSONReadingMutableContainers error: &error];
if (!json) {
NSLog(#"JSON parsing error: %#", error);
}
I'd also suggest changing your server code to not build JSON manually, but take advantage of JSON functions (e.g. if PHP, build associative arrays and then generate JSON output using the json_encode function).
So, once you fix the JSON error, to parse the results might look like:
NSError *error;
NSDictionary *dictionary = [NSJSONSerialization JSONObjectWithData:data options:0 error:&error];
if (!dictionary) {
NSLog(#"NSJSONSerialization error: %#", error);
return;
}
NSArray *items = dictionary[#"item"];
for (NSDictionary *item in items) {
NSString *identifier = item[#"id"];
NSString *created = item[#"created"];
NSString *title = item[#"title"];
NSString *urlString = item[#"image_url"];
NSString *caption = item[#"image_caption"];
NSLog(#"identifier = %#", identifier);
NSLog(#"created = %#", created);
NSLog(#"title = %#", title);
NSLog(#"urlString = %#", urlString);
NSLog(#"caption = %#", caption);
}
You can use NSJSONSerialization. No need to import any class.
NSDictionary *result = [NSJSONSerialization JSONObjectWithData:[strResult dataUsingEncoding:NSUTF8StringEncoding] options:0 error:nil];
or use NSData directly as
NSDictionary *result = [NSJSONSerialization JSONObjectWithData:theJSONDataFromTheRequest options:0 error:nil];
Source : Stackoveflow question
I need to get Particular Object values ( A, B, C, D) and related key values (#"name" ). Here below I have posted my sample code and response. Please help me.
NSString *combined = URL;
NSURL *url = [[NSURL alloc] initWithString:combined];
NSData *responseData=[NSData dataWithContentsOfURL:url];
NSError *error;
NSDictionary *jsonDictionary = [NSJSONSerialization JSONObjectWithData:responseData options:kNilOptions error:&error];
NSArray *responsData = [jsonDictionary objectForKey:#"response"];
// GET A,B,C Object values
NSDictionary *d1 = responsData.firstObject;
NSEnumerator *enum1 = d1.keyEnumerator;
NSArray *firstObject = [enum1 allObjects];
My JSON Response :
response : [ {
A = [ {
name : tango
}
{
name : ping
}
]
B = [ {
name : tango
}
{
name : ping
}
]
} ]
You can achieve the list of all names using this:
NSMutableArray *names = [[NSMutableArray alloc] init];
for (NSDictionary *dict in responsData) {
[dict enumerateKeysAndObjectsUsingBlock: ^(id key, id obj, BOOL *stop) {
NSArray *valueArray = (NSArray *)obj;
for (NSDictionary * namesDict in valueArray) {
[names addObject:namesDict[#"name"]];
}
}];
}
Output:
NSLog(#"Names %#",names);
tango, ping, tango, ping.
Hope that helps!
Simply
for(NSDictionary *dict in firstObject){
NSLog(#"%#",[dict objectForKey:#"name"]);
}
I am new in the iOS development and i am calling the web service that returns me data like
[
{
"ID": "3416a75f4cea9109507cacd8e2f2aefc3416a75f4cea9109507cacd8e2f2aefc",
"Name": "2M Enerji"
},
{
"ID": "072b030ba126b2f4b2374f342be9ed44072b030ba126b2f4b2374f342be9ed44",
"Name": "Çedaş"
},
{
"ID": "093f65e080a295f8076b1c5722a46aa2093f65e080a295f8076b1c5722a46aa2",
"Name": "Çelikler"
},
{
"ID": "7cbbc409ec990f19c78c75bd1e06f2157cbbc409ec990f19c78c75bd1e06f215",
"Name": "Çoruh EDAŞ"
},
{
"ID": "70efdf2ec9b086079795c442636b55fb70efdf2ec9b086079795c442636b55fb",
"Name": "İçdaş"
}
]
Now i am trying to get it in the array , the array will be seperate for the name and id , i am done till taking in NSDICT following is my code
-(void)connectionDidFinishLoading:(NSURLConnection *)connection
{
NSLog(#"finish loading");
NSString *loginStatus = [[NSString alloc] initWithBytes:[webData mutableBytes]
length:[webData length]
encoding:NSUTF8StringEncoding];
NSString *responsewith = [[NSString alloc] initWithData:webData
encoding:NSUTF8StringEncoding];
//providerData = [NSKeyedUnarchiver unarchiveObjectWithData:webData];
providerDropData = [NSString stringWithFormat:responsewith];
NSLog(#"drop %#",providerDropData);
NSArray *providerData = [providerDropData valueForKey:#"ID"];
NSLog(#"jey %#",responsewith);
NSLog(#"resonser %#",responsewith);
NSLog(#"laoding data %#",loginStatus);
//greeting.text = loginStatus;
[loginStatus release];
[connection release];
[webData release];
}
When i tried saving the NSDictionary to the NSArray for #"ID" the application get crashed.
Please help
You simply want to use NSJSONSerialization
NSError *error = nil;
NSArray *results = [NSJSONSerialization JSONObjectWithData:webData options:0 error:&error];
if (!results)
NSLog(#"%s: JSONObjectWithData error: %#", __FUNCTION__, error);
// get the first provider id
NSString *providerData = results[0][#"ID"];
You can fetch data from JSON like below way as well,
id jsonObjectData = [NSJSONSerialization JSONObjectWithData:webData error:&error];
if(jsonObjectData){
NSMutableArray *idArray = [jsonObjectData mutableArrayValueForKeyPath:#"ID"];
NSMutableArray *nameArray = [jsonObjectData mutableArrayValueForKeyPath:#"Name"];
}
Convert the data to NSDictionary by parsing, then you can extract using KVP.
NSDictionary *responseDict = [NSJSONSerialization JSONObjectWithData:response options:0 error:&error];
NSDictionary * providerDropData = [NSJSONSerialization JSONObjectWithData:webData error:&error];
NSLog(#"drop %#",providerDropData);
NSMutableArray *providerData = [NSMutableArray new];
NSString *key = #"ID";
for (key in providerDropData){
NSLog(#"Key: %#, Value %#", key, [providerDropData objectForKey: key]);
[providerData addObject:[providerDropData objectForKey:key]];
}
NSLog("ID Array = %#", providerData]);
}