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Parsing JSON response .
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Closed 8 years ago.
I have some values in an array ,using dictionary I need to show these values through some key value
{
"table_id": "180PTTBL",
"table_name": "180 Points",
"stake": 100,
"game_type": "180PT"
}
Please help me out this problem
You can use NSJSONSerialization
NSError *e = nil;
NSDictionary *dict = [NSJSONSerialization JSONObjectWithData: data options: NSJSONReadingMutableContainers error: &e];
if (!dict) {
NSLog(#"Error parsing JSON: %#", e);
} else {
.. do your stuff
}
NSString *jsonString = #"YOUR_JSON_STRING";
NSData *data = [jsonString dataUsingEncoding:NSUTF8StringEncoding];
id json = [NSJSONSerialization JSONObjectWithData:data options:0 error:nil];
NSLog(#"%#",[json objectForKey:#"table_id"]);
Related
I want to try to convert NSData to NSDictionary or NSArray but some how i can't do that but whenever try to convert into NSString it will converted and gating data so any one can know what is mistake ,help me below is code for convert
NSDictionary *json = [NSJSONSerialization JSONObjectWithData:data
options:0
error:nil];
Below code for convert into NSString
NSString *str = [[NSString alloc]initWithData:data encoding:NSUTF8StringEncoding];
But Problem is that When get this type of data it will converted on array
Response:
[["superwoman",0],["sugar",0],["sultan trailer",0],["summer",0],["superman",0],["sunday candy",0],["sublime",0],["summer sixteen",0],["superfruit",0],["sultan songs",0]]
but Whenever gat this type of response it will not converted on array formated because of ,[3 on response
Response:
[["ssundee",0],["selena gomez",0],["sia",0],["sorry beyonce",0],["smosh",0],["sweatshirt jacob
sartorius",0],["skydoesminecraft",0],["secret life of pets
trailer",0,[3]]
try this one
NSError* error;
NSDictionary* json = [NSJSONSerialization JSONObjectWithData:responseObject
options:kNilOptions
error:&error];
1)You need to take the response in id type variable & check the class of response like below.
2)You also need to check if JSON convertion is successful
NSError * error;
id result = [NSJSONSerialization JSONObjectWithData:data
options:0 error:&error];
if (!error) {
if([id isKindOfClass:[NSDictionary class]]){
//Response is Dictonary
} else if ([id isKindOfClass:[NSArray class]]){
//Response is Array
} else {
//any other format
}
} else {
//Handle error
}
I have a dictionary that looks like this.
NSDictionary *dict = #{#"cpu" : self.proData ,
#"date" : timeMilliString,
#"memory" : self.memData,
#"battery" : self.batData,
#"deviceID" : #"1"
};
I'm creating json objects from it like this:
self.jsonObj1 = [NSJSONSerialization dataWithJSONObject:dict options:NSJSONWritingPrettyPrinted error:&error];
self.jsonObj2 = [NSJSONSerialization dataWithJSONObject:dict options:NSJSONWritingPrettyPrinted error:&error];
self.jsonObj3 = [NSJSONSerialization dataWithJSONObject:dict options:NSJSONWritingPrettyPrinted error:&error];
Afterwards I want to put the 3 json objects into a json array and then put that json array into another json object. So finally, it should look something like this:
{"mobileData":[
{ "cpu":-991,
"date":"142441374.5834",
"memory":978,
"battery":-96,
"deviceID" : 2
},
{ "cpu":-51,
"date":"142441374.5834",
"memory":978,
"battery":-96,
"deviceID" : 2
},
{ "cpu":-51,
"date":"142441374.5834",
"memory":978,
"battery":-96,
"deviceID" : 2
}
]
}
I have tried it as follows but it's not working.
NSArray *jsonArray = #[self.jsonObj1, self.jsonObj2, self.jsonObj3];
NSDictionary *dict = #{#"mobileData" : jsonArray};
if ([NSJSONSerialization isValidJSONObject:dict])
{
// Serialize the dictionary
json = [NSJSONSerialization dataWithJSONObject:dict options:NSJSONWritingPrettyPrinted error:&error2];
// If no errors, let's view the JSON
if (json != nil && error2 == nil)
{
NSString *jsonString = [[NSString alloc] initWithData:json encoding:NSUTF8StringEncoding];
NSLog(#"JSON: %#", jsonString);
//[jsonString release];
}
}
I'm getting an exception.
Any ideas? Thanks.
Firstly add all dictionaries to a array.
NSMutableArray *mutArrData = [NSMutableArray array];
//Add dictionaries which vary to your requirement.
[mutArrData addObject:yourDictionary]; //1
[mutArrData addObject:yourDictionary]; //2
[mutArrData addObject:yourDictionary]; //3
Now create a main dictionary to add array.
NSDictionary *dictJsonData = [NSDictionary dictionaryWithObjectsAndKeys:[mutArrData mutableCopy],#"mobileData",nil];
Now create json from dictionary
NSError *error = nil;
NSData *jsonData = [NSJSONSerialization dataWithJSONObject:dictJsonData options:NSJSONWritingPrettyPrinted error:&error];
if (jsonData && !error)
{
NSString *jsonString = [[NSString alloc] initWithData:jsonData encoding:NSUTF8StringEncoding];
NSLog(#"JSON: %#", jsonString);
}
I am new to iOS. I have this JSON data that I needed to parse:
{
"allseries":[
{
"type":"HR",
"title":"Heart Rate",
"xLabel":"Time",
"yLabel":"Beats per Min",
"defaultUnit":"BPM",
"url":"info/info?user=admin%40korrent.com&type=HR",
"size":18,
"firstTs":1406755651,
"lastTs":1406841254
},
{
"type":"TEMP",
"title":"Temperature",
"xLabel":"Time",
"yLabel":"Temperature",
"defaultUnit":"F",
"url":"info/info?user=admin%40korrent.com&type=TEMP",
"size":6,
"firstTs":1406854147,
"lastTs":1406854283
}
],
"status":"OK"
}
So far this is my code:
NSString *dataReceived= [[NSString alloc] initWithData:_responseData encoding:NSUTF8StringEncoding];
NSLog(#"--> async response data (string): %#", dataReceived);
NSData *jsonData = [dataReceived dataUsingEncoding:NSUTF8StringEncoding];
NSError *jsonError;
NSDictionary *dict = [NSJSONSerialization JSONObjectWithData:jsonData options:nil error:&jsonError];
NSLog(#"JSON key and value %#", [dict description]);
NSLog(#" %# ", dict[#"allseries"]);
NSString *jsonString=dict[#"allseries"];
if (_programState == 4){
NSLog(#"state is 4");
NSLog(#"%#",jsonString);
NSData *Data = [jsonString dataUsingEncoding:NSUTF8StringEncoding];
However, the code throws invalid argument exception for this line:
NSData *Data = [jsonString dataUsingEncoding:NSUTF8StringEncoding];
Further more, jsonString seems totally "inoperable". I cannot split it, append strings to it etc. So what's wrong?
// The following two lines are just for logging and otherwise are not needed.
NSString *dataReceived= [[NSString alloc] initWithData:_responseData encoding:NSUTF8StringEncoding];
NSLog(#"--> async response data (string): %#", dataReceived);
// Deserialize the JSON data into a dictionary
NSError *jsonError;
NSDictionary *dict = [NSJSONSerialization JSONObjectWithData: _responseData options:nil error:&jsonError];
NSLog(#"JSON key and value %#", dict);
// Get the array from the dictionary element "allseries".
NSArray *jsonArray = dict[#"allseries"];
NSLog(#"jsonArray: %#", jsonArray);
Here jsonArray is the array of dictionaries for "allseries" from the JSON
What you did is totally, totally wrong.
dict[#allseries] is not an NSString. It is an NSArray with two elements, and both its elements are NSDictionary.
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Closed 9 years ago.
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I am very new to iOS application development and I am getting the below response from the server:
"[{\"EmployeeID\":\"000001\",\"EmplyeeName\":\"ABCD EFGHI\"},
{\"EmployeeID\":\"000002\",\"EmplyeeName\":\"ADGHT ASASASAS\"}]"
Please anybody help me out on how to use employee ID and employee name in my application.
Your JSON data looks like "nested JSON", which means that you have to deserialize it twice.
The first deserialization extracts a string from your JSON data:
NSData *response = ...; // your data
NSError *error;
NSString *innerJson = [NSJSONSerialization JSONObjectWithData:response
options:NSJSONReadingAllowFragments error:&error];
Now innerJson is the string
[{"EmployeeID":"000001","EmplyeeName":"ABCD EFGHI"},{"EmployeeID":"000002","EmplyeeName":"ADGHT ASASASAS"}]
which is again JSON data. The second deserialization extracts the array:
NSArray *entries = [NSJSONSerialization JSONObjectWithData:[innerJson dataUsingEncoding:NSUTF8StringEncoding]
options:0 error:&error];
And now you can access it like
for (NSDictionary *entry in entries) {
NSString* employeeID = [entry objectForKey:#"EmployeeID"];
NSLog(#"%#", employeeID);
}
NSData *response = ...;
NSArray *entries = [NSJSONSerialization JSONObjectWithData:response
options:0
error:nil];
for(NSDictionary* entry in entries) {
NSString* employeeID = [entry objectForKey:#"EmployeeID"];
}
Look JSON Parser your response is JSON so you need to get that data from json.
NSURL * url=[NSURL URLWithString:#"<YourURL>"];
NSData * data=[NSData dataWithContentsOfURL:url];
NSError * error;
NSMutableDictionary * json = [NSJSONSerialization JSONObjectWithData:data options: NSJSONReadingMutableContainers error: &error];
NSLog(#"%#",json);
NSMutableArray * EmployeeID=[[NSMutableArray alloc]init];
NSMutableArray * EmployeeName=[[NSMutableArray alloc]init];
NSArray * responseArr = json[#"geonames"];
for(NSDictionary * dict in responseArr)
{
[EmployeeID addObject:[dict valueForKey:#"EmployeeID"]];
[EmployeeName addObject:[dict valueForKey:#"EmplyeeName"]];
}
now you get the EmployeeID,EmployeeName array now you can used anywhere where you want.
Take a look at:
NSJSONSerialization
Use this:
NSData* yourData = [[NSData alloc] initWithContentsOfURL: yourURL];
NSarray* yourJSON = [NSJSONSerialization JSONObjectWithData:yourData options:kNilOptions error:nil];
Hope this help you :)
Try to use this:
NSDictionary *myJSON = [NSJSONSerialization JSONObjectWithData:myData options:NSJSONReadingMutableContainers error:nil];
This is my code for handling server response.
- (void)connectionDidFinishLoading:(NSURLConnection *)connection
{
NSLog(#"connectionDidFinishLoading : %#", [[NSString alloc] initWithData:self.data encoding:NSUTF8StringEncoding]);
}
This is the message Server response to me, NSLog JSON displays in console.
connectionDidFinishLoading : {"ErrorCode":"CssParameterException","ErrorMessage":"An error has occurred, please try again later.","Success":false}
My question is: how do I deserialize the JSON and store it into a local variable NSDictionary *jsonData?
Any suggestions? Please give me some code example, thanks!
NSError *e = nil
NSDictionary *JSON = [NSJSONSerialization JSONObjectWithData: responseData options: NSJSONReadingMutableContainers error: &e];
If you have NSString response
NSError *e = nil
NSDictionary *JSON = [NSJSONSerialization JSONObjectWithData: [responseString dataUsingEncoding:NSUTF8StringEncoding] options: NSJSONReadingMutableContainers error: &e];