this is my snippet:
NSString *post = #"from=A&name=B&email=ciccio#aaasd.com&messaggio=MESSAGE&codHidden=-1";
NSData *postData = [post dataUsingEncoding:NSASCIIStringEncoding allowLossyConversion:NO];
NSString *postLength = [NSString stringWithFormat:#"%d", [postData length]];
NSMutableURLRequest *request = [[[NSMutableURLRequest alloc] init] autorelease];
[request setURL:[NSURL URLWithString:#"http://www.mysite.com/page.php"]];
[request setHTTPMethod:#"POST"];
[request setValue:postLength forHTTPHeaderField:#"Content-Length"];
[request setValue:#"application/x-www-form-urlencoded" forHTTPHeaderField:#"Content-Type"];
[request setHTTPBody:postData];
NSData *urlData = [NSURLConnection sendSynchronousRequest:request returningResponse:nil error:nil];
NSLog(#"Succeeded! Received %d bytes of data",[urlData length]);
NSString *outputdata = [[NSString alloc] initWithData:urlData encoding:NSASCIIStringEncoding];
NSLog(#"%#", outputdata);
It call a php page that send me an email...
Is there any errors in this code?
Does not seem to work...
thanks
Is it a Synchronous/Asynchronous problem? If so, use the delegate-pattern and access the data asynchronously. Could you post any errors you see (or the server's response string)?
EDIT: Since you're not doing anything useful with the error returned, change your class to do the request asynchronously. A great answer to this was previously posted here. Once you implement didFailWithError you'll have a better picture.
Try to change NSASCIIStringEncoding to NSUTF8StringEncoding
Related
I am sending data from iphone application to server but when it reads post String it crashes in the application and do not move forward
-(void)submitSurveyAnswers{
NSString*survey_question_response_id="1";
NSString*survey_id=#"1";
NSString *question_id =#"1";
NSString *survey_response_answer_id =#"1";
NSString *post =[[NSString alloc] initWithFormat:#"survey_question_response_id=%#&survey_id=%#&question_id=%#&survey_response_answer_id=%#",survey_question_response_id,survey_id,question_id,survey_response_answer_id];
NSLog(post);
NSURL *url=[NSURL URLWithString:#"http://myserver-solutions.com/app/surveyAnswer.php?"];
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/x-www-form-urlencoded" forHTTPHeaderField:#"Content-Type"];
[request setHTTPBody:postData];
NSError *error;
NSURLResponse *response;
NSData *urlData=[NSURLConnection sendSynchronousRequest:request returningResponse:&response error:&error];
NSString *data=[[NSString alloc]initWithData:urlData encoding:NSUTF8StringEncoding];
NSLog(#"%#",data);
}
You have created one string with below way:
NSString*survey_question_response_id="1"; //Missing '#' while initializing string
It should be created like below way:
NSString*survey_question_response_id=#"1"; //Added '#' while initializing string
NSString*survey_question_response_id="1";
is wrong. Strings between plain double quotes are C string (0-terminated character pointers), and aren't valid NSString instances. I'm sure you wanted to 1. learn to use a debugger 2. write
NSString *survey_question_response_id = #"1";
instead.
I have the following details, for get the data from server. What is the use of methodIdentifier and web service name ?
{"zip":"12345","methodIdentifier":"s_dealer"}
url:- http://xxxxxxxxxxxxxxx.com/api.php
method: post
web service name: s_dealer
response : {"success":"0","dealer":[info...]}
I don't know how to send zip number "12345" with the url. Please direct me on right direction. I use the following.
-(void)IconClicked:(NSString *)zipNumber
{
NSString *post = [NSString stringWithFormat:#"&zipNumber=%#",zipNumber];
NSData *postData = [post dataUsingEncoding:NSASCIIStringEncoding allowLossyConversion:YES];
NSString *postLength = [NSString stringWithFormat:#"%d",[postData length]];
NSMutableURLRequest *request = [[[NSMutableURLRequest alloc] init] autorelease];
[request setURL:[NSURL URLWithString:[NSString stringWithFormat:#"http://xxxxxxxxxxxxxxxxxxx.com/api.php"]]];
[request setHTTPMethod:#"POST"];
[request setValue:postLength forHTTPHeaderField:#"Content-Length"];
[request setHTTPBody:postData];
NSURLConnection *conn = [[NSURLConnection alloc]initWithRequest:request delegate:self];
if(conn)
{
NSLog(#"Connection Successful");
}
else
{
NSLog(#"Connection could not be made");
}
receivedData = [[NSMutableData alloc]init];
}
when i print the response in console :\"Unexpected end of string\"
Without knowing more about the API, I can't be certain about your requirements, but it seems that the server is expecting the request to contain JSON. The way you currently are creating the body for the request is using standard POST variables.
Have you tried changing:
NSString *post = [NSString stringWithFormat:#"&zipNumber=%#",zipNumber];
to:
NSString *post = [NSString stringWithFormat:#"{\"zip\":\"%#\",\"methodIdentifier\":\"s_dealer\"}",zipNumber];
Regarding your other questions, I'm guessing that there is a single URL for the API. The methodidentifier is used by the server in order to determine which server method(s) to run.
You get this error because you do not get a json as a response, but an error from Apache (or whatever), that has different structure, and json cannot parse it. Try my method to initiate the connection, in order to gain a successful one.
Declare a NSURLConnection property and synthesize it. Now:
NSString *post = [NSString stringWithFormat:#"zipNumber=%#",zipNumber];
NSString *toServer = [NSString stringWithString:#"your server with the last slash character"];
NSURL *url = [NSURL URLWithString:[NSString stringWithFormat:#"%#api.php?", toServer]];
NSData *postData = [post dataUsingEncoding:NSUTF8StringEncoding allowLossyConversion:NO];
NSString *postLength = [NSString stringWithFormat:#"%d", [postData length]];
NSMutableURLRequest *urlRequest = [[[NSMutableURLRequest alloc] init] autorelease];
[urlRequest setURL:url];
[urlRequest setHTTPMethod:#"POST"];
[urlRequest setValue:postLength forHTTPHeaderField:#"Content-Length"];
[urlRequest setValue:#"application/x-www-form-urlencoded" forHTTPHeaderField:#"Content-Type"];
[urlRequest setValue:#"utf-8" forHTTPHeaderField:#"charset"];
[urlRequest setHTTPBody:postData];
[urlRequest setTimeoutInterval:30];
NSURLConnection *tmpConn = [[[NSURLConnection alloc] initWithRequest:urlRequest delegate:self] autorelease];
self.yourConnectionProperty = tmpConn;
Now you work with self.yourConnectionProperty in connection delegates. Cheers!
hey bro check my answer for same problem may help you... You have to use the NSURLConnection Delegates to get the data
Could not make Json Request body from Iphone
am using web services (JSON). from json am getting data this data loading into tableview am trying to edit this data but after edit the data how to send this updated data to server.
please any one help me?
try this will help you.. this is the post method for updating data in WS .
NSString *post =[NSString stringWithFormat:#"uid=%#&firstname=%#&lastname=%#&phone=%#&bday=%#&about_me=%#&image=%#&image_code=%#&contact_number=%#",LoginID,fname,lname,cn,bday,abtme,strimage11,c11,cn];
NSData *postData = [post dataUsingEncoding:NSUTF8StringEncoding allowLossyConversion:YES];
NSString *postLength = [NSString stringWithFormat:#"%d", [postData length]];
NSMutableURLRequest *request = [[[NSMutableURLRequest alloc] init] autorelease];
[request setURL:[NSURL URLWithString:#"YOUR LINK"]];
[request setHTTPMethod:#"POST"];
[request setValue:postLength forHTTPHeaderField:#"Content-Length"];
[request setValue:#"application/x-www-form-urlencoded" forHTTPHeaderField:#"Content-Type"];
[request setValue:#"application/x-www-form-urlencoded charset=utf-8" forHTTPHeaderField:#"Content-Type"];
[request setHTTPBody:postData];
NSError *error;
NSURLResponse *response;
NSData *uData=[NSURLConnection sendSynchronousRequest:request returningResponse:&response error:&error];
NSString *data=[[NSString alloc]initWithData:uData encoding:NSUTF8StringEncoding];
//
NSMutableDictionary *temp = [data JSONValue];
//
NSLog(#"%#",temp);
I am assuming you have your edited data, then
Form your json. There are several libraries out there which can help you.
Know the hostname of your server.
Know which API to hit on your server.
then pass this json as POST (GET is also ok, but POST is preferred).
Process this received json on your server.
Hope this helps. Nothing much to it actually.
I am communicating with a .NET web service in an iPhone application, using the POST method, but I am not getting XML back as response. Here is my code:
NSURL *url = [NSURL URLWithString:[NSString stringWithFormat:#"Myserver/EventService.svc"]];
NSString *api = #"/registeruser";
NSData *body = [[NSString stringWithFormat:#"%#/%#/%#/%#/%#/%#/%#/%#/%#",
api, txtFName.text ,txtLName.text,
txtUName.text, txtEmail.text, txtPassword.text,
txtCity.text, txtState.text, str] dataUsingEncoding:NSASCIIStringEncoding allowLossyConversion:YES];
NSLog(#"url %#",url);
NSLog(#"body %#",[NSString stringWithFormat:#"%#/%#/%#/%#/%#/%#/%#/%#/%#",
api, txtFName.text, txtLName.text,
txtUName.text, txtEmail.text, txtPassword.text,
txtCity.text, txtState.text, str]);
NSMutableURLRequest *request = [[[NSMutableURLRequest alloc] init] autorelease];
[request setURL:url];
[request setHTTPBody:body];
[request setValue:#"text/xml" forHTTPHeaderField:#"Content-Type"];
NSLog(#"body len %d",[body length]);
NSString *postLength = [NSString stringWithFormat:#"%d", [body length]];
[request setValue:postLength forHTTPHeaderField:#"Content-Length"];
[request setHTTPMethod:#"POST"];
NSError *error;
NSURLResponse *response;
NSData *urlData=[NSURLConnection sendSynchronousRequest:request returningResponse:&response error:&error];
NSString *XMLString=[[NSString alloc]initWithData:urlData encoding:NSUTF8StringEncoding];
NSLog(#"data %#",XMLString);
Please help me. Thanks in advance.
I have done that with following.
NSURL *url=[NSURL URLWithString:[NSString stringWithFormat:#"Myserver/EventService.svc/webservice/%#/%#",para1,para2]];
NSMutableURLRequest *request = [[[NSMutableURLRequest alloc] init] autorelease];
[request setURL:url];
[request addValue:#"text/xml; charset=utf-8" forHTTPHeaderField:#"Content-Type"];
[request addValue:0 forHTTPHeaderField:#"Content-Length"];
[request setHTTPMethod:#"POST"];
NSError *error;
NSURLResponse *response;
NSData *urlData=[NSURLConnection sendSynchronousRequest:request returningResponse:&response error:&error];
NSString *XMLString=[[NSString alloc]initWithData:urlData encoding:NSUTF8StringEncoding];
NSLog(#"data %#",XMLString);
Have you tried something smaller first? Say doing an http post locally? Or doing an http post to that server with a simple html form?
I have run into this issue myself and decided to step back and start with a simple http post to make sure my objective-c was correct first.
I used this tutorial to get me started -hope it helps
I am trying to post a string to a URL in iphone which will be retrieved by the server. The server side scripting is done in coldfusion. I am trying to fetch the data in coldfusion and pass on the value back to iphone. I am not familiar much with coldfusion and wanted some help in this. Below is the coding in iphone :
/** Iphone code **/
NSString *post =[[NSString alloc] initWithString:#"Hello World"];
NSURL *url=[NSURL URLWithString:#"http://www.abc.com/test.cfm"];
NSData *postData = [post dataUsingEncoding:NSUTF8StringEncoding allowLossyConversion:YES];
NSString *postLength = [NSString stringWithFormat:#"%d", [postData length]];
NSMutableURLRequest *request = [[[NSMutableURLRequest alloc] init] autorelease];
[request setURL:url];
[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;
NSData *urlData=[NSURLConnection sendSynchronousRequest:request returningResponse:&response error:&error];
NSString *data=[[NSString alloc]initWithData:urlData encoding:NSUTF8StringEncoding];
/*Coldfusion code */
<html>
<head><title>Test</title></head>
<body>
<cfoutput>#form.post#</cfoutput>
</body>
</html>
Am I doing it correctly ?
You may need to specify name of form variable in data. Try below for post variable. I haven't tested it should work.
NSString *post =[[NSString alloc] initWithString:#"post=Hello%20World"];