sometimes I get error "index 1 beyond bounds for empty array" at this line
NSData *aData = [NSURLConnection sendSynchronousRequest:request returningResponse:&response error:&error];
This is my full code
+ (NSDictionary *)getJson: (NSString *)strURL parameters:(NSDictionary *)parameters{
NSData *postData = [NSJSONSerialization dataWithJSONObject:parameters options:0 error:nil];
NSMutableURLRequest *request = [NSMutableURLRequest requestWithURL:[NSURL URLWithString:strURL]
cachePolicy:NSURLRequestUseProtocolCachePolicy
timeoutInterval:15.0];
NSDictionary *headers = #{ #"content-type": #"application/json",
#"cache-control": #"no-cache",
#"postman-token": #"374a4b6f-b660-78f2-78bf-e22cf0156d8d"};
[request setHTTPMethod:#"POST"];
[request setAllHTTPHeaderFields:headers];
[request setHTTPBody:postData];
NSURLResponse *response;
NSError *error;
NSData *aData = [NSURLConnection sendSynchronousRequest:request returningResponse:&response error:&error];*
NSDictionary *json = [NSJSONSerialization JSONObjectWithData:aData options: NSJSONReadingMutableContainers error:&error];
return json;
}
Sometimes I get error, Sometimes not. I don't understands ? please help me, thanks everyone.
Whenever you get an error like the above, try the following:
NSData *aData = [NSURLConnection sendSynchronousRequest:request returningResponse:&response error:&error];
NSDictionary *json = [NSJSONSerialization JSONObjectWithData:aData options: NSJSONReadingMutableContainers error:&error];
if (error)
{
//1. See what the error says
NSLog(error.localizedDescription);
//2. Convert the original data into a string
NSString *jsonString = [[NSString alloc] initWithData:aData encoding: NSUTF8StringEncoding];
//Now take this string and validate it as a JSON at a place like http://jsonlint.com/
}
NSMutableURLRequest *request = [[NSMutableURLRequest alloc] initWithURL: url
cachePolicy: defaultCachePolicy
timeoutInterval: defaultTimeoutInSeconds];
plz change your cachePolicy with defaultCachePolicy and try :)
Related
I tried below code like this ,
NSDictionary * callDict = meetingdictparams;
// 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:meetingupdateurlparams]];
// 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];
NSLog(#"json array is %#",jsonArray);
// if u want to check the data in console
NSString *tmp=[[NSString alloc]initWithData:responseData encoding:NSUTF8StringEncoding];
NSLog(#"%#", tmp);
getting errror like this,
java.lang.NullPointerException
status code:503
backenederror
I checked that server url in postman..it's working properly....
and I am sending parameters as this..
NSDictionary *dictionary=[[NSDictionary alloc]initWithObjectsAndKeys:_MeetingTypeId,#"meetingTyp",Meetingtitletxtfld.text,#"meetinTitle",Meetingdistxtfld.text,#"meetDescription",_Starttimestr,#"startTym",Meetinglengthtxtfld.text,#"hours",Useridstr,#"meetOwnId",_ProjId,#"projectId",[[meetDate componentsSeparatedByString: #" "]objectAtIndex:0],#"meetDate",_MeetingId,#"meetingId",_ConfOwnerId,#"ConferRoomId",nil];
NSLog(#"all key values are %#",dictionary);
so,anyone can help in this issuance..thanks in advance....
Below is my code, and am trying to parse a JSON; I am getting response but when am printing dictionary, it's null.
below is the response string, result of JSON.
NSString *post = [[NSString alloc] initWithFormat:#"jobid=%#",idjob];
NSData *postData = [post dataUsingEncoding:NSASCIIStringEncoding allowLossyConversion:YES];
NSURL *url = [NSURL URLWithString:#"URL"];
NSMutableURLRequest *theRequest = [NSMutableURLRequest requestWithURL:url];
[theRequest setHTTPMethod:#"POST"];
[theRequest setHTTPBody:postData];
NSURLResponse *response;
NSError *error;
NSData *urlData = [NSURLConnection sendSynchronousRequest:theRequest returningResponse:&response error:&error];
NSString *str=[[NSString alloc]initWithData:urlData encoding:NSUTF8StringEncoding];
NSLog(#"login:%#",str);
NSDictionary *jsonDict = [NSJSONSerialization JSONObjectWithData:[str dataUsingEncoding:NSUTF8StringEncoding] options:NSJSONReadingMutableContainers error:&error];
NSLog(#"aarraa:%#",jsonDict);
Response for str :
{"Jobdesc":[{"jobid":"11260","job_title":"Linux + Nagios System Administrator","job_desc":"<p>Technical skills required:</p>
<ol>
<li>Should be ready to work during French timings</li>
<li>Linux Certification / training is a must</li>
<li>Linux System administration (Red hat Linux, CentOS Servers)</li>
<li>Experience in LAMP configuration and troubleshooting</li>
<li>Knowledge on windows OS</li>
<li>Experience on monitoring tools like Nagios / Centreon, Ops5</li>
<li>Scripting in Shell, Perl or Python</li>
</ol>
","job_role":"Linux + Nagios System Administrator","job_exp":"1-5 year","job_education":"Others","job_location":"Delhi","job_address":"Delhi","job_company_name":"Pandya Business Solutions.","job_company_url":"http://www.pandyabusinesssolutions.com/","job_company_email":"singhjapesh#gmail.com","job_status":""}]}
but parameter jsonDict is null.
Try this...
NSString *jsonString = [NSString stringWithFormat:#"URL"];
NSURL *nurl = [NSURL URLWithString:jsonString];
NSData *jsonData = [NSData dataWithContentsOfURL:nurl];
NSError *error = nil;
NSDictionary *dictResult = [NSJSONSerialization
JSONObjectWithData:jsonData options:0 error:&error];
It seems that you are trying to serialise your data just before you completely get it, below is the code with completionHandler which will begin further process once you get all your data, so try this:
[NSURLConnection sendAsynchronousRequest: theRequest queue [NSOperationQueue mainQueue] completionHandler:^(NSURLResponse *response, NSData *data, NSError *error) {
NSString *str=[[NSString alloc]initWithData:urlData encoding:NSUTF8StringEncoding];
NSDictionary *jsonDict = [NSJSONSerialization JSONObjectWithData:[str dataUsingEncoding:NSUTF8StringEncoding] options:NSJSONReadingMutableContainers error:&error];
}];
i tried validating JSON response, and found that there were extra spaces in JSON so below is my resolved answer.
NSString *post = [[NSString alloc] initWithFormat:#"jobid=%#",idjob];
NSData *postData = [post dataUsingEncoding:NSASCIIStringEncoding allowLossyConversion:YES];
NSURL *url = [NSURL URLWithString:#"http://ncrjobs.in/webservice/jobdesc.php"];
NSMutableURLRequest *theRequest = [NSMutableURLRequest requestWithURL:url];
[theRequest setHTTPMethod:#"POST"];
[theRequest setHTTPBody:postData];
NSURLResponse *response;
NSError *error;
NSData *urlData = [NSURLConnection sendSynchronousRequest:theRequest returningResponse:&response error:&error];
NSString *str=[[NSString alloc]initWithData:urlData encoding:NSUTF8StringEncoding];
NSCharacterSet *spaces=[NSCharacterSet whitespaceCharacterSet];
NSPredicate *predicates=[NSPredicate predicateWithFormat:#"SELF !=''"];
NSArray *temparray=[[str componentsSeparatedByCharactersInSet:spaces]filteredArrayUsingPredicate:predicates];
str=[temparray componentsJoinedByString:#" "];
NSString *string = [str stringByReplacingOccurrencesOfString:#"[\r\n]" withString:#"" options:NSRegularExpressionSearch range:NSMakeRange(0, str.length)];
NSDictionary *jsonDict = [NSJSONSerialization JSONObjectWithData:[string dataUsingEncoding:NSUTF8StringEncoding] options:NSJSONReadingMutableContainers error:&error];
Serialize data like this.
NSMutableDictionary *json =[NSJSONSerialization JSONObjectWithData:responseObject options:kNilOptions error:&error];
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
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];
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);
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);
}
}];
Some time when I call this piece of code *data is nil. It works most of the times except for certain situations which I'm not able to find.
Does anyone know why data could be nil and under which circumstances it could happen?
Some times *data isn't nil but it isn't what I'm expecting (for example I'm getting "login_okit_IT" instead of "login_ok")
Here is the code:
+ (NSDictionary *)eseguiRichiestaConURL:(NSString *)urlScript
{
NSString *rawStr = [NSString stringWithFormat:#""];
NSData *data = [rawStr dataUsingEncoding:NSASCIIStringEncoding allowLossyConversion:YES];
NSURL *url = [NSURL URLWithString:urlScript];
NSMutableURLRequest *request = [NSMutableURLRequest requestWithURL:url];
[request setHTTPMethod:#"POST"];
[request setHTTPBody:data];
//[request setTimeoutInterval:10000];
NSURLResponse *response;
NSError *err;
NSData *responseData = [NSURLConnection sendSynchronousRequest:request returningResponse:&response error:&err];
NSLog(#"%#", responseData);
NSString *responseString = [NSString stringWithUTF8String:[responseData bytes]];
//NSLog(#"%#", responseString);
NSData *jsonData = [responseString dataUsingEncoding:NSUTF8StringEncoding];
NSError *e;
if(responseData == nil)
NSLog(#"------ PARAMETRI VUOI -------");
NSDictionary *dict = [NSJSONSerialization JSONObjectWithData:jsonData options:nil error:&e];
return dict;
}
Thanks in advance.
Posted a query previously about JSON parsing not working properly. Did more looking into it with a packet sniffer and also with another client that works properly and found out it's a syntax thing, that I still can't seem to solve.
The code in the bottom makes the HTTP request to have the JSON in it as:
{"key":"value"}
And my server is actually looking for a JSON in the following syntax:
key=%22value%22
I tried to write some code that does this manually, but figured there must be something out of the box for iOS, and I don't want to have faults in the future.
I messed around with it for a while trying to find the right code for the job, but couldn't (you can see some code I tried commented out). Can anyone help me?
+ (NSString*)makePostCall:(NSString*)urlSuffix
keys:(NSArray*)keys
objects:(NSArray*)objects{
NSDictionary *params = [NSDictionary dictionaryWithObjects:objects forKeys:keys];
// NSString *dataString = [self getDataStringFromDictionary:params];
// NSData *jsonData = [dataString dataUsingEncoding:NSUTF8StringEncoding];
NSError *error;
NSData *jsonData = [NSJSONSerialization dataWithJSONObject:params
options:0
error:&error];
// id jsonObject = [NSJSONSerialization JSONObjectWithData:jsonData options:kNilOptions error:&error];
// NSLog(#"%#", jsonObject);
if (!jsonData) {
// should not happen
NSError *error;
NSLog(#"Got an error parsing the parameters: %#", error);
return nil;
} else {
// NSString *jsonRequest = [[NSString alloc] initWithData:jsonData encoding:NSUTF8StringEncoding];
// NSLog(#"%#", jsonRequest);
NSURL *url = [NSURL URLWithString:[NSString stringWithFormat:#"%#%#", urlPrefix, urlSuffix]];
NSMutableURLRequest *request = [NSMutableURLRequest requestWithURL:url
cachePolicy:NSURLRequestUseProtocolCachePolicy timeoutInterval:20.0];
// NSData *requestData = [jsonRequest dataUsingEncoding:NSUTF8StringEncoding];
[request setHTTPMethod:#"POST"];
[request setValue:#"application/json" forHTTPHeaderField:#"Accept"];
// [request setValue:#"application/x-www-form-urlencoded;charset=UTF-8" forHTTPHeaderField:#"Content-Type"];
[request setValue:#"application/json; charset=utf-8" forHTTPHeaderField:#"Content-Type"];
[request setHTTPBody: jsonData];
NSURLResponse * response = nil;
NSError * error = nil;
NSData * data = [NSURLConnection sendSynchronousRequest:request
returningResponse:&response
error:&error];
// TODO: handle error somehow
NSString *returnString = [[NSString alloc] initWithData:data encoding:NSUTF8StringEncoding];
return returnString;
}
}