How can I get JSON from a URL and encode NSString to show using NSLog?
The JSON contains Chinese words.
NSMutableURLRequest *request = [[NSMutableURLRequest alloc] init];
[request setURL:[NSURL URLWithString:#"http://jxdp.mnks.cn/read.php?xCode=6beff&Code=6beff&Type=1&&top=5&min=0&CALL="]];
[request setHTTPMethod:#"GET"];
NSURLResponse *requestResponse;
NSData *requestHandler = [NSURLConnection sendSynchronousRequest:request returningResponse:&requestResponse error:nil];
NSString *requestReply = [[NSString alloc] initWithBytes:[requestHandler bytes] length:[requestHandler length] encoding:NSUTF8StringEncoding];
NSLog(#"requestReply: %#", requestReply);
Related
In my app i need to post data to server and need to recieve response. But i am getting null value after posting data.Below is my full code. Thanks in advance.
{
NSString *post =[[NSString alloc] initWithFormat:#"%#%#%#%#%#",[self.username_reg text],[self.emailid_reg text],[self.phone_reg text],[self.password_reg text],[self.confirmpassword_reg text]];
NSLog(#"PostData: %#",post);
NSMutableURLRequest *request = [[NSMutableURLRequest alloc] init];
NSURL *url=[NSURL URLWithString:#"https://servlet/URL"];
NSData *postData = [post dataUsingEncoding:NSASCIIStringEncoding allowLossyConversion:YES];
NSString *postLength = [NSString stringWithFormat:#"%lu", (unsigned long)[postData length]];
[request setURL:url];
[request setHTTPMethod:#"POST"];
[request setValue:postLength forHTTPHeaderField:#"Content-Length"];
[request setValue:#"application/json" forHTTPHeaderField:#"Accept"];
[request setValue:#"application/x-www-form-urlencoded" forHTTPHeaderField:#"Content-Type"];
NSMutableDictionary *postDict = [[NSMutableDictionary alloc] init];
[postDict setValue:_username_reg.text forKey:#"UserName"];
[postDict setValue:_emailid_reg.text forKey:#"Email"];
[postDict setValue:_phone_reg.text forKey:#"Phone"];
[postDict setValue:_password_reg.text forKey:#"Pass"];
[postDict setValue:_confirmpassword_reg.text forKey:#"ConPass"];
NSData *jsonData = [NSJSONSerialization dataWithJSONObject:postDict options:0 error:nil];
// Checking the format
NSString *urlString = [[NSString alloc] initWithData:jsonData encoding:NSUTF8StringEncoding];
// Convert your data and set your request's HTTPBody property
NSString *stringData = [[NSString alloc] initWithFormat:#"jsonRequest=%#", urlString];
NSData *requestBodyData = [stringData dataUsingEncoding:NSUTF8StringEncoding];
request.HTTPBody = requestBodyData;
NSLog(#"bcbc:%#",requestBodyData);
[NSURLConnection sendAsynchronousRequest:request queue:[NSOperationQueue mainQueue] completionHandler:^(NSURLResponse *response, NSData *data, NSError *connectionError)
{
NSString* newStr = [[NSString alloc] initWithData:jsonData encoding:NSUTF8StringEncoding];
NSLog(#"new:%#",newStr);
NSError *error;
NSDictionary *json_Dict = [NSJSONSerialization JSONObjectWithData:data options:kNilOptions error:&error];
NSLog(#"%#",json_Dict);
}];
}
The Request given format is:
{"UserName":"sony","Email":"ronyv#example.in","Phone":"7358700457","Pass":"sony88","ConPass":"sony88"}
The response need to get:
{"responseHeader":{"responseCode":0,"responseMessage":"Success"}}
Try this code:
NSData* jsonData = [NSJSONSerialization dataWithJSONObject:#"your dictionary name" options:NSJSONWritingPrettyPrinted error:&error];
NSString *jsonString = [[NSString alloc] initWithData:jsonData encoding:NSUTF8StringEncoding];
NSLog(#"jsonString: %#", jsonString);
NSData *requestData = [jsonString dataUsingEncoding:NSUTF8StringEncoding];
NSMutableData *body = [NSMutableData data];
[body appendData:requestData];
NSString *postLength = [NSString stringWithFormat:#"%lu", (unsigned long)[body length]];
NSURL *url = [NSURL URLWithString:#"your url"];
NSMutableURLRequest *request = [[NSMutableURLRequest alloc] initWithURL:url];
[request setHTTPMethod:#"POST"];
[request setHTTPShouldHandleCookies:NO];
[request setValue:#"application/json" forHTTPHeaderField:#"Content-type"];
[request setValue:postLength forHTTPHeaderField:#"Content-Length"];
[request setHTTPBody:body];
NSURLSession *session = [NSURLSession sessionWithConfiguration:[NSURLSessionConfiguration defaultSessionConfiguration]];
[[session dataTaskWithRequest:request
completionHandler:^(NSData *data,
NSURLResponse *response,
NSError *error)
{
if (error) {
failure(error);
} else {
NSDictionary * jsonDic =[NSJSONSerialization JSONObjectWithData:data options:NSJSONReadingMutableContainers error:nil];
NSLog(#"%#",jsonDic);
if ([jsonDic objectForKey:#"error"]) {
}
else{
}
}
}] resume];
I am trying to send JSON data to server, but it is not go to server. I am getting nil data to print from server side but no use . Here I am using code for post data to server
NSError *error;
NSDictionary *dict=#{
#"allgroups": #{
#"groupname": #"prasad",
#"group_id":#"26",
#"user_id":#"8",
#"contacts": #[contactsArray]
}
};
NSData* jsonData = [NSJSONSerialization dataWithJSONObject:dict
options:NSJSONWritingPrettyPrinted
error:&error];
NSString *saveString = [[NSString alloc] initWithData:jsonData
encoding:NSUTF8StringEncoding];
NSString *myRequestString = [NSString stringWithFormat:#"%#",saveString];
NSData *myRequestData = [NSData dataWithBytes: [myRequestString UTF8String] length: [myRequestString length]];
NSMutableURLRequest *request = [[NSMutableURLRequest alloc] initWithURL: [NSURL URLWithString: [NSString stringWithFormat:#"http://example.php"]]];
[request setValue:#"application/x-www-form-urlencoded" forHTTPHeaderField:#"content-type"];
[request setHTTPMethod: #"POST"];
//post section
[request setHTTPBody: myRequestData];
NSURLResponse *response;
NSError *err;
NSData *responseData = [NSURLConnection sendSynchronousRequest:request returningResponse:&response error:&err];
NSString *returnString = [[NSString alloc] initWithData:responseData encoding:NSUTF8StringEncoding];
NSMutableArray *jsonArray = [NSJSONSerialization JSONObjectWithData:responseData options:0 error:nil];
NSLog(#"String value is:: %#",returnString);
please help me.thanks in advance
Following function is working for me .You can use it:
-(NSMutableArray*)Post_method:(NSString*)post_string posturl:(NSString *)post_url
{
NSString *post =post_string;
NSURL *url=[NSURL URLWithString:[NSString stringWithFormat:#"%#%#",kBaseURL,post_url]];
NSData *postData = [post dataUsingEncoding:NSASCIIStringEncoding allowLossyConversion:YES];
NSString *postLength = [NSString stringWithFormat:#"%d", [postData length]];
NSMutableURLRequest *request = [[NSMutableURLRequest alloc] init] ;
[request setURL:url];
[request setHTTPMethod:#"POST"];
[request setValue:postLength forHTTPHeaderField:#"Content-Length"];
[request setValue:#"application/json" forHTTPHeaderField:#"Content-Type"];
[request setHTTPBody:postData];
NSError *error;
NSURLResponse *response;
NSData *responseData=[NSURLConnection sendSynchronousRequest:request returningResponse:&response error:&error];
NSString* aStr = [[NSString alloc] initWithData:responseData encoding:NSUTF8StringEncoding] ;
SBJSON *json=[[SBJSON alloc]init];
NSMutableArray *resultp=[json objectWithString:aStr];
//NSLog(#"result %# ",resultp);
return results;
}
And call this function as:
[self Post_method:[NSString stringWithFormat:#"%#",jsonString] posturl:#""];
You should directly pass your jsonData to NSMutableURLRequest like this:
NSData* jsonData = [NSJSONSerialization dataWithJSONObject:dict options:NSJSONWritingPrettyPrinted error:&error];
NSMutableURLRequest *request = [[NSMutableURLRequest alloc] initWithURL: [NSURL URLWithString: [NSString stringWithFormat:#"http://example.php"]]];
[request setValue:#"application/x-www-form-urlencoded" forHTTPHeaderField:#"content-type"];
[request setHTTPMethod: #"POST"];
[request setHTTPBody:jsonData];
I'm trying to send JSON data to server side using POST method, but my code gives null JSON value. I am using Objective C where I fetch data from textField and convert it into string, but after that while converting this value to JSON object, it gives null value. Don't know what to do.
Here is my code:
- (IBAction)loginAction:(UIButton *)sender
{
NSString *post = [NSString stringWithFormat:#"Username=%#&Password=%#" ,self.userNameField.text,self.passwordField.text];
NSData *postData = [post dataUsingEncoding:NSUTF8StringEncoding];
postData = [postData subdataWithRange:NSMakeRange(0, [postData length] - 1)];
NSData*jsonData = [NSJSONSerialization JSONObjectWithData:postData options:NSJSONReadingMutableContainers error:nil];
NSString *postLength = [NSString stringWithFormat:#"%d",[postData length]];
NSMutableURLRequest *request = [[NSMutableURLRequest alloc]init];
[request setURL:[NSURL URLWithString:[NSString stringWithFormat:#"http://172.31.144.227:8080/Analytics/rest/login/post"]]];
[request setHTTPMethod:#"POST"];
[request setValue:postLength forHTTPHeaderField:#"Content-Length" ];
[request setValue:#"application/json" forHTTPHeaderField:#"Accept"];
[request setValue:#"application/x-www-form-urlencoded" forHTTPHeaderField:#"Current-Type"];
[request setHTTPBody:jsonData];
NSURLConnection *theConnection = [[NSURLConnection alloc] initWithRequest:request delegate:self];
[theConnection start];
NSError *error = [[NSError alloc] init];
NSHTTPURLResponse *response = nil;
[NSURLConnection sendSynchronousRequest:request returningResponse:&response error:&error];
}
-(void)MessagePost{
NSString * post =[NSString stringWithFormat:#"http://url.com/clients/project_id=%#&user_id=58&question=%#&send_enquiry=Send",[[self.recordchat objectForKey:#"id"] stringByAddingPercentEscapesUsingEncoding:NSUTF8StringEncoding],[[_txtfield text] stringByAddingPercentEscapesUsingEncoding:NSUTF8StringEncoding]];
NSLog(#"%#",post);
NSData *postdata= [post dataUsingEncoding:NSASCIIStringEncoding allowLossyConversion:YES];
NSString *postLength=[NSString stringWithFormat:#"%lu",(unsigned long)[postdata length]];
NSMutableURLRequest *request= [[NSMutableURLRequest alloc]init];
[request setURL:[NSURL URLWithString:post]];
[request setHTTPMethod:#"POST"];
[request setValue:postLength forHTTPHeaderField:#"Content-Length"];
[request setValue:#"application/x-www-form-urlencoded" forHTTPHeaderField:#"Content-Type"];
[request setHTTPBody:postdata];
NSError *error;
NSURLResponse *response;
postdata=[NSURLConnection sendSynchronousRequest:request returningResponse:&response error:&error];
NSString *returnstring=[[NSString alloc]initWithData:postdata encoding:NSUTF8StringEncoding];
NSLog(#"String : %#",returnstring);
if (postdata){
NSDictionary *dict= [NSJSONSerialization JSONObjectWithData:postdata options:NSJSONReadingMutableContainers error:nil];
NSDictionary* latestLoans = [dict objectForKey:#"status"];
NSLog(#"Status dict = %#",latestLoans);
} else{ NSLog(#"Error while posting messages.");}}
instead of writing NSString *post = [NSString stringWithFormat:#"Username=%#&Password=%#" ,self.userNameField.text,self.passwordField.text];
you should use this
NSMutableDictionary *post = [[NSMutableDictionary alloc]init];
[post setValue:self.userNameField.text forKey:#"Username"];
[post setValue:self.passwordField.text forKey:#"Password"];
Try this -
- (IBAction)loginAction:(UIButton *)sender
{
NSDictionary *dictDetails = #{
#"Username" : self.userNameField.text,
#"Password" : self.passwordField.text
};
NSString *jsonRequest = [dict JSONRepresentation];
NSURL *url = [NSURL URLWithString:[NSString stringWithFormat:#"http://172.31.144.227:8080/Analytics/rest/login/post"]];
NSMutableURLRequest *request = [NSMutableURLRequest requestWithURL:url
cachePolicy:NSURLRequestUseProtocolCachePolicy timeoutInterval:60.0];
NSData *requestData = [NSData dataWithBytes:[jsonRequest UTF8String] length:[jsonRequest length]];
[request setHTTPMethod:#"POST"];
[request setHTTPBody: requestData];
[request setValue:[NSString stringWithFormat:#"%lu", (unsigned long)
[requestData length]] forHTTPHeaderField:#"Content-Length"];
[request setValue:#"application/json" forHTTPHeaderField:#"Accept"];
[request setValue:#"application/x-www-form-urlencoded" forHTTPHeaderField:#"Current-Type"];
NSURLConnection *theConnection = [[NSURLConnection alloc] initWithRequest:request delegate:self];
[theConnection start];
NSError *error = [[NSError alloc] init];
NSHTTPURLResponse *response = nil;
NSData *data = [NSURLConnection sendSynchronousRequest:request returningResponse:&response error:&error];
}
Finally I wrote the correct code and it's working fine now. Please suggest me If any further modification is required..
Thank you all for your time and support..
Here is my code:
- (IBAction)loginAction:(UIButton *)sender
{
NSMutableDictionary *post = [[NSMutableDictionary alloc]init];
[post setValue:self.userNameField.text forKey:#"username"];
[post setValue:self.passwordField.text forKey:#"password"];
NSArray* notifications = [NSArray arrayWithObjects:post, nil];
NSError *writeError = nil;
NSData *jsonData = [NSJSONSerialization dataWithJSONObject:notifications options:kNilOptions error:&writeError];
NSString *postLength = [NSString stringWithFormat:#"%d",[jsonData length]];
NSMutableURLRequest *request = [[NSMutableURLRequest alloc]init];
[request setURL:[NSURL URLWithString:[NSString stringWithFormat:#"http://172.31.144.227:8080/Analytics/rest/login"]]];
[request setHTTPMethod:#"POST"];
[request setValue:postLength forHTTPHeaderField:#"Content-Length" ];
[request setValue:#"application/json" forHTTPHeaderField:#"Accept"];
[request setValue:#"application/json" forHTTPHeaderField:#"Content-Type"];
[request setHTTPBody:jsonData];
NSLog(#"JSON Summary: %#", [[NSString alloc] initWithData:jsonData encoding:NSUTF8StringEncoding]);
NSURLConnection *theConnection = [[NSURLConnection alloc] initWithRequest:request delegate:self];
[theConnection start];
NSError *error = [[NSError alloc] init];
NSHTTPURLResponse *response = nil;
NSData *urlData=[NSURLConnection sendSynchronousRequest:request returningResponse:&response error:&error];
NSLog(#"Response Error= %#", response);
if ([response statusCode] >=200 && [response statusCode] <300)
{
NSData *responseData = [[NSData alloc]initWithData:urlData];
NSMutableDictionary *jsonObject = [NSJSONSerialization JSONObjectWithData:responseData options:NSJSONReadingMutableContainers error:nil];
NSLog(#"Random Output= %#", jsonObject);
[self performSegueWithIdentifier:#"DASHBOARDSEGUE" sender:sender];
}else {
[self alertStatus:#"Connection Failed" :#"Login Failed!"];
}
}
I am new to using POST, and have just written a code that takes a username and password that was entered in and sends it via POST for validation. If it is valid, it will return true, if not it will return false. I think my code works for the most part, but there must be something missing with my return data because it does not output true or false. Here is my code:
- (IBAction)btnLogIn:(id)sender;
{
//getting the username and password and putting it into a string
NSString *post =[[NSString alloc] initWithFormat:#"username= %# &password =%#",[self.lblUserName text],[self.lblPassword text]];
//output the string
NSLog(#"PostData: %#",post);
//setting the URL to post to
NSURL *url=[NSURL URLWithString:#"myurl.php"];
//converts string to data that can be used to post
NSData *postData = [post dataUsingEncoding:NSASCIIStringEncoding allowLossyConversion:YES];
//get the length of the string
NSString *postLength = [NSString stringWithFormat:#"%lu", (unsigned long)[postData length]];
//formatting the URL
NSMutableURLRequest *request = [[NSMutableURLRequest alloc] init] ;
[request setURL:url];
[request setHTTPMethod:#"POST"];
[request setValue:postLength forHTTPHeaderField:#"Content-Length"];
[request setValue:#"application/json" forHTTPHeaderField:#"Accept"];
[request setValue:#"application/x-www-form-urlencoded" forHTTPHeaderField:#"Content-Type"];
[request setHTTPBody:postData];
NSURLResponse *requestResponse;
NSData *requestHandler = [NSURLConnection sendSynchronousRequest:request returningResponse:&requestResponse error:nil];
NSString *requestReply = [[NSString alloc] initWithBytes:[requestHandler bytes] length:[requestHandler length] encoding:NSASCIIStringEncoding];
NSLog(#"requestReply: %#", requestReply);
}
I am not sure what part is missing or wrong. Everything runs fine, just returns blank when I test it out.
this is another method
//Create the request
NSMutableURLRequest *request = [[NSMutableURLRequest alloc] initWithURL:[NSURL URLWithString:#"myurl.php"]];
// create the Method "GET" or "POST"
[request setHTTPMethod:#"POST"];
//Pass The String to server
NSString *userUpdate =[NSString stringWithFormat:#"username=%#&password=%#",[self.lblUserName text],[self.lblPassword text],nil];
//Check The Value what we passed
NSLog(#"the data Details is =%#", userUpdate);
//Convert the String to Data
NSData *data1 = [userUpdate dataUsingEncoding:NSUTF8StringEncoding];
//Apply the data to the body
[request setHTTPBody:data1];
//Create the response and Error
NSError *err;
NSURLResponse *response;
NSData *responseData = [NSURLConnection sendSynchronousRequest:request returningResponse:&response error:&err];
NSString *resSrt = [[NSString alloc]initWithData:responseData encoding:NSASCIIStringEncoding];
//This is for Response
NSLog(#"got response==%#", resSrt);
if(resSrt)
{
NSLog(#"got response");
}
else
{
NSLog(#"faield to connect");
}
I am receiving the unauthorized BBVA APIData error. The code Im using in Xcode as Objective-C for get the data is this:
NSMutableURLRequest *request = [[NSMutableURLRequest alloc] init];
[request setURL:[NSURL URLWithString:#"https://api.bbva.com/apidatos/zones/cards_cube.json?date_min=201301&date_max=201307&group_by=week"]];
[request setHTTPMethod:#"GET"];
[request setValue:#"application/json;charset=UTF-8" forHTTPHeaderField:#"Authorization: Y2hvbWFsaS1hcHA6MGM2ZTljNjgxODNiZmUzOWY2OGJiYjY1NjZlZmU4ZTE3MzI0NTcyOQ=="];
NSURLResponse *response;
NSData *GETReply = [NSURLConnection sendSynchronousRequest:request returningResponse:&response error:nil];
NSString *theReply = [[NSString alloc] initWithBytes:[GETReply bytes] length:[GETReply length] encoding: NSASCIIStringEncoding];
NSLog(#"Reply: %#", theReply);
This is the documentation I used: https://developer.bbva.com/api/api-datathon/section/api-reference
I would think that, in line 4, it should be
[request setValue: Y2hvbWFsaS1hcHA6MGM2ZTljNjgxODNiZmUzOWY2OGJiYjY1NjZlZmU4ZTE3MzI0NTcyOQ== forHTTPHeaderField:#"Authorization:"];
You might have to remove the colon after "Authorization:"