Is there any tools, including online service and macOs app, to beautify the nested NSDictionary result like this?
{
id = 1;
testName = my name;
createDate = 20021023;
likeNumber = 0;
statusList = ({
appleId = 1;
orangeName = 81;
itsStatus = YES;
});
text = test;
type = Text;
},
I mean collapse(close and open) the tree nodes easily.
Currently ,there are many online tools for this purpose when it comes to JSON like jsonformatter.
As Fonix mentioned, the best way to convert NSDictionary to JSON and then use JSON tools for this purpose:
+(NSString *)dictionaryToJson:(NSDictionary *)dictionary {
NSError *error;
NSData *jsonData = [NSJSONSerialization dataWithJSONObject:dictionary
options:NSJSONWritingPrettyPrinted // Pass 0 if you don't care about the readability of the generated string
error:&error];
NSString *jsonString;
if (! jsonData) {
NSLog(#"Got an error: %#", error);
jsonString = [error localizedDescription];
} else {
jsonString = [[NSString alloc] initWithData:jsonData encoding:NSUTF8StringEncoding];
}
return jsonString;
}
Related
I'm using NSJSONSerialization to parse Google suggestions.
The query "f" returns these suggestions:
["f",["facebook","flipkart","fox news","forever 21","friv","fandango","fedex","fitbit","food near me","flights"]]
The parser works fine but when there are special characters like "ñ" for the query "fac":
["fac",["facebook","facebook search","fac","facebook app","facebook lite","facebook login","facebook logo","facebook messenger","facetime","facebook en español"]]
It throws an exception:
Error Domain=NSCocoaErrorDomain Code=3840 "Unable to convert data to string around character 139." UserInfo={NSDebugDescription=Unable to convert data to string around character 139.}
Any ideas? I tried all different reading options but none of them works.
#pragma mark -
- (void)request:(NSString *)text
{
NSMutableArray *items = [[NSMutableArray alloc] init];
NSString *query = [text stringByAddingPercentEncodingWithAllowedCharacters:[NSCharacterSet URLQueryAllowedCharacterSet]];
NSString *languageCode = [[NSLocale preferredLanguages] firstObject];
if (!languageCode) {
languageCode = #"en";
}
NSString *URLString = [NSString stringWithFormat:#"http://suggestqueries.google.com/complete/search?q=%#&client=firefox&hl=%#", query, languageCode];
NSError *downloadError = nil;
NSData *JSONData = [NSData dataWithContentsOfURL:[NSURL URLWithString:URLString] options:0 error:&downloadError];
if (!downloadError && JSONData) {
NSError *parseError = nil;
id object = [NSJSONSerialization JSONObjectWithData:JSONData options:NSJSONReadingMutableContainers error:&parseError];
if (!parseError && object) {
if ([object isKindOfClass:[NSArray class]]) {
NSArray *objects = (NSArray *)object;
NSArray *texts = [objects objectAtIndex:1];
for (NSString *text in texts) {
SNGoogleItem *item = [[SNGoogleItem alloc] initWithText:text];
[items addObject:item];
}
[_delegate google:self didRespondWithItems:items];
}
else {
[_delegate google:self didRespondWithItems:items];
}
}
else {
[_delegate google:self didRespondWithItems:items];
}
}
else {
[_delegate google:self didRespondWithItems:items];
}
}
JSONSerialization supports all the encodings in JSON spec, says Apple documentation.
You didn't provide much info about the encoding scheme of your data but I guess you use nonLossyASCII or something like that, which is not supported by JSONSerialization.
Here is how I convert data to/from JSON:
let rawString = "[[\"facebook en español\"]]"
// if I use String.Encoding.nonLossyASCII below, I get the error you are getting
let data = rawString.data(using: String.Encoding.utf8)
let dict = try! JSONSerialization.jsonObject(with: data!)
let convertedData = try! JSONSerialization.data(withJSONObject: dict)
let convertedString = String(data: convertedData, encoding: String.Encoding.utf8)!
// now convertedString contains "ñ" character
This will convert whatever encoding used to UTF8:
NSData *JSONData = [NSData dataWithContentsOfURL:[NSURL URLWithString:URLString] options:0 error:&downloadError];
NSString *convertedJSONString; BOOL usedLossyConversion;
[NSString stringEncodingForData:JSONData encodingOptions:0 convertedString:&convertedJSONString usedLossyConversion:&usedLossyConversion];
NSData *convertedJSONData = [convertedJSONString dataUsingEncoding:NSUTF8StringEncoding];
Now, it works!
I have this function:
- (void)checkLogin:(NSString *)pLogin andPassword:(NSString*) pPassword {
//Create the data object.
NSMutableDictionary *tLoginAndPasword = [NSMutableDictionary dictionaryWithObjectsAndKeys:pLogin,#"Login",pPassword,#"Password", nil];
NSMutableDictionary *tData = [NSMutableDictionary dictionaryWithObjectsAndKeys:[_Util serializeDictionary:tLoginAndPasword],#"Data", nil];
//Call the login method.
NSData *tResponse = [_Util getLogin:tData];
if (tResponse != Nil) {
_oLabelErrorLogin.hidden = YES;
[_Util setUser:pLogin andPassword:pPassword];
NSMutableDictionary *tJSONResponse =[NSJSONSerialization JSONObjectWithData:tResponse options:kNilOptions error:nil];
NSString *tPayload = [tJSONResponse objectForKey:#"Payload"];
if([[tJSONResponse objectForKey:#"StatusCode"] isEqual: #"424"]) {
//Set global values.
NSData *tPayloadData = [tPayload dataUsingEncoding:NSUTF8StringEncoding];
if ([NSJSONSerialization isValidJSONObject:tPayloadData]) {
_Payload = [NSJSONSerialization JSONObjectWithData:tPayloadData options:kNilOptions error:nil];
_RowCount = _Payload.count;
} else {
NSLog(#"JSON Wrong String %#",tPayload);
}
} else if([[tJSONResponse objectForKey:#"StatusCode"] isEqual: #"200"]){
_Payload = Nil;
}
} else {
//Set global values.
_Payload = Nil;
_oLabelErrorLogin.hidden = NO;
//Clear login data.
_oLogin.text = #"";
_oPassword.text = #"";
[_Util setUser:#"" andPassword:#""];
}
}
The JSON response looks like this:
{
"Payload": "{\"UserName\":\"Marco Uzcátegui\",\"Clients\":[{\"UserProfileId\":4,\"ProfileName\":\"Platform Administrator\",\"ClientName\":\"Smart Hotel Platform\",\"InSession\":true},{\"UserProfileId\":5,\"ProfileName\":\"Administrator\",\"ClientName\":\"La Moncloa de San Lázaro\",\"InSession\":false},{\"UserProfileId\":6,\"ProfileName\":\"Administrator\",\"ClientName\":\"Jardín Tecina\",\"InSession\":false}]}",
"StatusCode": "424",
"StatusDescription": null
}
As you can see, I have a escaped string inside "Payload" that is a correct JSON, so I want to generate another NSMutableDictionary with that string, so I'm doing this:
NSData *tPayloadData = [tPayload dataUsingEncoding:NSUTF8StringEncoding];
if ([NSJSONSerialization isValidJSONObject:tPayloadData]) {
_Payload = [NSJSONSerialization JSONObjectWithData:tPayloadData options:kNilOptions error:nil];
_RowCount = _Payload.count;
} else {
NSLog(#"JSON Wrong String %#",tPayload);
}
So I'm creating an NSData from the NSString and asking if is valid, it always returns false.
I have tried to replace the "\" from the string and is not working.
[tPayload stringByReplacingOccurrencesOfString:#"\\\"" withString:#""]
I have tried to create a NSMutableDictionary with the string, but the result is not a dictionary.
NSMutableDictionary *tPayload = [tJSONResponse objectForKey:#"Payload"];
I'm kind of lost here.
Any help will be appreciated.
Regards.
The issue is this line
[NSJSONSerialization isValidJSONObject:tPayloadData]
From the documentation of isValidJSONObject
Returns a Boolean value that indicates whether a given object can be
converted to JSON data.
given object means an NSArray or NSDictionary but not NSData
Remove that check and implement the error parameter in JSONObjectWithDataoptions:error:
The method NSJSONSerialization.isValidJSONObject: checks if an object (e.g. a NSDictonary or NSArray instance) can be converted to JSON. It doesn't check if a NSData instance can be converted from JSON. For NSData, it will always return false.
So just call NSJSONSerialization.JSONObjectWithData:options: and check the result instead.
I am converting JSON data in to NSString using below code:
NSString *json_string = [[NSString alloc] initWithData:data encoding:NSUTF8StringEncoding];
NSLog(#"Data AS STRING %#", json_string);
it returns NSString in this format:
Data AS STRING
{
"success": true,
"terms": "https://currencylayer.com/terms",
"privacy": "https://currencylayer.com/privacy",
"timestamp": 1446673809,
"source": "USD",
"quotes": {
"USDAED": 3.672993,
"USDAFN": 64.980003,
"USDALL": 127.164497,
"USDAMD": 474.480011,
"USDANG": 1.790326,
"USDAOA": 135.225006,
"USDARS": 9.536025,
"USDAUD": 1.398308,
"USDAWG": 1.79,
"USDAZN": 1.04625,
"USDBAM": 1.800851,
"USDBBD": 2,
"USDBDT": 78.666946,
"USDBGN": 1.80115,
"USDBHD": 0.37727,
"USDBIF": 1562.5,
"USDBMD": 1.00005,
"USDBND": 1.403198,
"USDBOB": 6.899293,
"USDBRL": 3.80025,
"USDBSD": 0.999335,
"USDBTC": 0.002372,
"USDBTN": 65.495003,
"USDBWP": 10.55195,
"USDBYR": 17415,
"USDBZD": 1.994983,
"USDCAD": 1.315225,
"USDCDF": 929.999946,
"USDCHF": 0.99331,
"USDCLF": 0.024598,
"USDCLP": 692.094971,
"USDCNY": 6.33525,
"USDCOP": 2837.080078,
"USDCRC": 534.015015,
"USDCUC": 0.99991,
"USDCUP": 0.99978,
"USDCVE": 101.349503,
"USDCZK": 24.907012,
"USDDJF": 177.595001,
"USDDKK": 6.8657,
"USDDOP": 45.400002,
"USDDZD": 107.014999,
"USDEEK": 14.325002,
"USDEGP": 8.029699,
"USDERN": 15.279969,
"USDETB": 21.022499,
"USDEUR": 0.920471,
"USDFJD": 2.157498,
"USDFKP": 0.648499,
"USDGBP": 0.650132,
"USDGEL": 2.395014,
"USDZWL": 322.355011
}
}
I need to get value of "USDGBP" from that string. How can I do that? Preferably stored as double.
Rather than converting it into NSString try converting it in NSDictionary using
NSError *error;
NSDictionary *jsonDict = [NSJSONSerialization JSONObjectWithData:data options:0 error:&error];
then you can retrieve value of USDGBP like
double usdgbp = [jsonDict[#"quotes"][#"USDGBP"] doubleValue];
NSDictionary *jsonDict = [NSJSONSerialization JSONObjectWithData:data options:0 error:nil];
double usdgbpValue = [jsonDict[#"quotes"][#"USDGBP"] doubleValue];
you can find the value in the string simply extracting a string between 2 string.
NSString *jsonStr = #"long json string";
NSRange str1 = [jsonStr rangeOfString:#"\"USDGBP\":"];
NSRange str2 = [jsonStr rangeOfString:#","];
NSRange strSub = NSMakeRange(str1.location + str1.length, str2.location - str1.location - str1.length);
NSString *valueForUSDGBP = [jsonStr substringWithRange:strSub];
You should use NSJSONSerialization
NSData *jsonData = your data ... ;
NSError *theError = nil;
NSDictionary *jsonDict = [NSJSONSerialization JSONObjectWithData:jsonData options:kNilOptions error:&theError];
if (theError) {
NSLog(#"%#", theError);
}
else {
double theValue = [jsonDict[#"quotes"][#"USDGBP"] doubleValue];
}
If you'd like to have much fun, use NSScanner to parse the string ;)
I need to convert XML response to JSON and sand to the json To javaScript code.
My XML response:
<cell>
<Result>True</Result>
<sguid>02291c402-2220-422b-b199-f92f22e56d2f</sguid>
</cell>
I am using XMLReader supporting file from this site:
XMLReader
I am using this code to convert XML to JSON :
+ (NSString*) XMLToJson:(CXMLDocument *)xmlDocument
{
NSError *error = nil;
NSArray *resultNodes = [xmlDocument nodesForXPath:#"//cell" error:&error];
if(error)
NSLog(#"%#",error.description);
CXMLNode *cellNode = [resultNodes objectAtIndex:0];
NSLog(#"%#",cellNode.XMLString);
NSError *parseError = nil;
NSDictionary *xmlDictionary = [XMLReader dictionaryForXMLString:cellNode.XMLString error:&parseError];
NSLog(#"%#", xmlDictionary);
//{print this.
// cell = {
// Result = {
// text = True;
// };
// sguid = {
// text = "0391c402-1120-460b-b199-f92fffe56d2f";
// };
// };
//}
NSData *jsonData = [NSJSONSerialization dataWithJSONObject:xmlDictionary
options:NSJSONWritingPrettyPrinted // Pass 0 if you don't care about the readability of the generated string
error:&error];
if(error)
NSLog(#"%#",error.description);
NSString *jsonString = [[NSString alloc] initWithData:jsonData encoding:NSUTF8StringEncoding];
NSLog(#"%#", jsonString);
return jsonString;
}
I got JSON response like this:
{
"cell" : {
"Result" : {
"text" : "True"
},
"sguid" : {
"text" : "0391c402-1120-460b-b199-f92fffe56d2f"
}
}
}
I need JSON response like this:
{
"cell": {
"Result": "True",
"sguid": "02291c402-2220-422b-b199-f92f22e56d2f"
}
}
Because then I send this json to javascript code I get that exception jquery mobile dont know parser this and throws an exception of syntax error.
I've seen programmers use this solution and is helping them but I still get the same result in this solution.
XML into JSON conversion in iOS
thanks
I just wrote a function for your problem, I tried it on with a couple of XMLs. Let me know if you find any issues
- (NSMutableDictionary *)extractXML:(NSMutableDictionary *)XMLDictionary
{
for (NSString *key in [XMLDictionary allKeys]) {
// get the current object for this key
id object = [XMLDictionary objectForKey:key];
if ([object isKindOfClass:[NSDictionary class]]) {
if ([[object allKeys] count] == 1 &&
[[[object allKeys] objectAtIndex:0] isEqualToString:#"text"] &&
![[object objectForKey:#"text"] isKindOfClass:[NSDictionary class]]) {
// this means the object has the key "text" and has no node
// or array (for multiple values) attached to it.
[XMLDictionary setObject:[object objectForKey:#"text"] forKey:key];
}
else {
// go deeper
[self extractXML:object];
}
}
else if ([object isKindOfClass:[NSArray class]]) {
// this is an array of dictionaries, iterate
for (id inArrayObject in (NSArray *)object) {
if ([inArrayObject isKindOfClass:[NSDictionary class]]) {
// if this is a dictionary, go deeper
[self extractXML:inArrayObject];
}
}
}
}
return XMLDictionary;
}
And use it like this
NSDictionary *clearXML = [[self extractXML:[yourParsedXMLDictionary mutableCopy]] copy];
Your problem in using XMLReader. For resolve this problem you can use XMLConverter instead of the XMLReader.
I have in a NSString "[{"van" : 1,312, "vuan":12,123}] and in order to get this values for every key, I am doing this:
NSData *data1 = [jsonResponse1 dataUsingEncoding:NSUTF8StringEncoding];
jsonArray = [NSJSONSerialization JSONObjectWithData:data1 options:kNilOptions error:&err];
self.van = [NSMutableArray arrayWithCapacity:1];
self.vuan = [NSMutableArray arrayWithCapacity:1];
for (NSDictionary *json in jsonArray) {
NSString * value = [json objectForKey:#"van"];
[self.van addObject:value];
lbl1.text = value;
NSString * value1 = [json objectForKey:#"vuan"];
[self.vuan addObject:value1];
lbl4.text = value1;
}
May be I don't have to use an array and instead to convert the NSData directly in a NSDictionary.
Anyway, I don't understand why jsonArray is nil, although jsonResponse1 contains the values I have written above.
EDIT: My boss have written the json string wrong. Thank you all for your suggestions!:)
Your JSON is invalid. Fix it. This site is your friend.
http://jsonlint.com/
You need to code more defensively and you need to report errors as they are found.
Firstly check if the JSON parsing failed and if so report the error:
NSData *data1 = [jsonResponse1 dataUsingEncoding:NSUTF8StringEncoding];
jsonArray = [NSJSONSerialization JSONObjectWithData:data1 options:kNilOptions error:&err];
if (jsonArray == nil)
{
NSLog(#"Failed to parse JSON: %#", [err localizedDescription]);
return;
}
Secondly if those keys are not in the JSON, objectForKey: will return nil and when you attempt to add that to the arrays, it will throw an exception, which is something you want to avoid:
for (NSDictionary *json in jsonArray) {
NSString * value = [json objectForKey:#"van"];
if (value != nil)
{
[self.van addObject:value];
lbl1.text = value;
}
else
{
NSLog(#"No 'van' key in JSON");
}
NSString * value1 = [json objectForKey:#"vuan"];
if (value1 != nil)
{
[self.vuan addObject:value1];
lbl4.text = value1;
}
else
{
NSLog(#"No 'vuan' key in JSON");
}
}
So in summary: runtime errors will occur so you need to ensure you handle them. When they occur you need to report them with as much information possible so that you can diagnose and fix them.