I am using Box's iOS SDK (https://github.com/box/box-ios-sdk-v2) and I am trying to get a URL to stream videos that are uploaded to Box.
I tried using the following method on the BoxFilesResourceManager class, but I do not see any special fields on https://developers.box.com/docs/#folders-folder-object that would get me a streaming URL
- (BoxAPIJSONOperation *)fileInfoWithID:(NSString *)fileID requestBuilder:(BoxFilesRequestBuilder *)builder success:(BoxFileBlock)successBlock failure:(BoxAPIJSONFailureBlock)failureBlock;
The only potential way to get a URL may be for me to get a shared link of the file and try to stream from that, but I hardly doubt that will give me the correct URL
Thanks
NSMutableURLRequest *request = [NSMutableURLRequest requestWithURL:[NSURL URLWithString:[NSString stringWithFormat:#"https://api.box.com/2.0/files/%#/content", fileId]]];
NSString *bearerToken = [NSString stringWithFormat:#"Bearer %#", accessToken]; // the access tokes must be valid(not expired)
[request addValue:bearerToken forHTTPHeaderField:#"Authorization"];
NSURLConnection *conn = [[NSURLConnection alloc] initWithRequest:request delegate:self];
[conn start];
// NSURLConnection Delegate method
- (void)connection:(NSURLConnection *)connection didReceiveResponse:(NSURLResponse *)response {
NSLog(#"streamable url: %#", response.URL);
}
Related
I am trying get data from server to store locally when needed. The data is present at different api urls. I want to call all those apis on a single refresh click.Kindly help me to solve this.
-(void) call:(NSString *)url{
NSURLRequest *Request1 = [NSURLRequest requestWithURL :[NSURL URLWithString:url] cachePolicy:NSURLRequestReloadIgnoringCacheData timeoutInterval:30.0];
// calling only one api
NSURLConnection *connection = [[NSURLConnection alloc] initWithRequest:Request1 delegate:self startImmediately:YES];
// flag = true;
[SVProgressHUD showWithStatus:#"Wait while we fetch data .."];
if (connection){
NSLog(#"connection success");
}
else{
// handle error here
}
}
I need some help with a LoginViewController.
Basically I have a small app, and I need to post some data to the app and Im new to POST and JSON. If I can get some help and understanding that would be highly appreciated. Below are some requirements im working with. My .m file is labled as LoginViewController. This is what I have so far
-(void)setRequest {
#pragma mark NSURLConnection Delegate Methods
- (void)connection:(NSURLConnection *)connection didReceiveResponse:(NSURLResponse *)response {
// A response has been received, this is where we initialize the instance var you created
// so that we can append data to it in the didReceiveData method
// Furthermore, this method is called each time there is a redirect so reinitializing it
// also serves to clear it
_responseData = [[NSMutableData alloc] init];
}
- (void)connection:(NSURLConnection *)connection didReceiveData:(NSData *)data {
// Append the new data to the instance variable you declared
[_responseData appendData:data];
}
- (NSCachedURLResponse *)connection:(NSURLConnection *)connection willCacheResponse:(NSCachedURLResponse*)cachedResponse {
// Return nil to indicate not necessary to store a cached response for this connection
return nil;
}
- (void)connectionDidFinishLoading:(NSURLConnection *)connection {
// The request is complete and data has been received
// You can parse the stuff in your instance variable now
}
- (void)connection:(NSURLConnection *)connection didFailWithError:(NSError *)error {
// The request has failed for some reason!
// Check the error var
}
-(void)PostRequest{
// Create the request.
NSMutableURLRequest *request = [NSMutableURLRequest requestWithURL:[NSURL URLWithString:#"http://dev.apppartner.com/AppPartnerProgrammerTest/scripts/login.php"]];
// Specify that it will be a POST request
request.HTTPMethod = #"POST";
// This is how we set header fields
[request setValue:#"application/xml; charset=utf-8" forHTTPHeaderField:#"Content-Type"];
// Convert your data and set your request's HTTPBody property
NSString *stringData = #"some data";
NSData *requestBodyData = [stringData dataUsingEncoding:NSUTF8StringEncoding];
request.HTTPBody = requestBodyData;
// Create url connection and fire request
NSURLConnection *conn = [[NSURLConnection alloc] initWithRequest:request delegate:self];
}
}
I dont know if I'm even setting this up right. I saw many hTTP posts and what not, but im still confused on how I write this syntax and do I need to add anything additional.
I need to:
Send an asynchronous POST request to "some url"
The POST request must contain the parameters 'username' and 'password'
Will receive a JSON response back with a 'code' and a 'message'
Display the parsed code and message in a UIAlert along with how long the api call took in miliseconds
The only valid login is username: Super password: qwerty
When a login is successful, tapping 'OK' on the UIAlert should bring us back to the MainMenuViewController
I'm assuming the methods inside methods are a typo.
Unless you have a particular reason to implement all those delegate methods, you're probably better off using either
NSURLSessionDataTask *task =
[[NSURLSession sharedSession] dataTaskWithRequest:request
completionHandler:^(NSData *data,
NSURLResponse *response,
NSError *error) {
// Code to run when the response completes...
}];
[task resume];
or the equivalent using NSURLConnection's sendAsynchronousRequest:queue:completionHandler: method if you still need to support iOS 6 and earlier and/or OS X v10.8 and earlier.
But the big thing you're missing is the encoding of the request body. To do that, you'll probably want to use URL encoding and specify the appropriate MIME type for that as shown here:
https://developer.apple.com/library/mac/documentation/Cocoa/Conceptual/URLLoadingSystem/WorkingwithURLEncoding/WorkingwithURLEncoding.html
Basically, you construct a string by string concatenation in the form "user=ENCODEDUSERNAME&pass=ENCODEDPASSWORD" where the two encoded values are constructed like this:
NSString *encodedString = (__bridge_transfer NSString *)CFURLCreateStringByAddingPercentEscapes(
kCFAllocatorDefault,
(__bridge NSString *)originalString,
NULL,
CFSTR(":/?#[]#!$&'()*+,;="),
kCFStringEncodingUTF8);
Do not be tempted to use stringByAddingPercentEscapesUsingEncoding: and friends. They will do the wrong thing if your strings contain certain reserved URL characters.
I would suggest that you try working with AFNetworking Library.
You can find the code here.
And a very good tutorial here.
You can do like that for this.
NSMutableURLRequest *request = [[NSMutableURLRequest alloc] init];
[request addValue:#"YourUsername" forHTTPHeaderField:#"Username"];
[request addValue:#"YourPassword" forHTTPHeaderField:#"Password"];
[NSURLConnection
sendAsynchronousRequest:request
queue:[NSOperationQueue mainQueue]
completionHandler:^(NSURLResponse *response, NSData *data, NSError *connectionError) {
// TODO: Handle/Manage your response ,Data & errors
}];
-(IBAction)registerclick:(id)sender
{
if (_password.text==_repassword.text)
{
[_errorlbl setHidden:YES];
NSString *requstUrl=[NSString stringWithFormat:#"http://irtech.com/fresery/index.php?route=api/fresery/registerCustomer"];
NSString *postString=[NSString stringWithFormat:#"name=asd&email=sooraj&phonenumber=8111&password=soorajsnr&type=1&facebookid=&image_path="];
// _name.text,_email.text,_mobile.text,_password.text
NSData *returnData=[[NSData alloc]init];
NSMutableURLRequest *request=[[NSMutableURLRequest alloc]initWithURL:[NSURL URLWithString:requstUrl]];
[request setHTTPMethod:#"POST"];
[request setValue:[NSString stringWithFormat:#"%lu", (unsigned long)[postString length]] forHTTPHeaderField:#"Content-length"];
[request setHTTPBody:[postString dataUsingEncoding:NSUTF8StringEncoding]];
returnData = [NSURLConnection sendSynchronousRequest:request returningResponse:nil error:nil];
resp=[NSJSONSerialization JSONObjectWithData:returnData options:NSJSONReadingMutableContainers error:nil];
c=[[resp valueForKey:#"status" ]objectAtIndex:0];
b=[[resp valueForKey:#"message"]objectAtIndex:0];
I am following this tutorial: http://www.raywenderlich.com/2965/how-to-write-an-ios-app-that-uses-a-web-service. Trying to set up a basic web service. Seems like the tutorial is old material and ASIHTTPRequest is no longer continued. I have been trying to use NSURLRequest instead. First question, is NSURLRequest a pretty standard way to be doing this? I just want something for basic GET, POST etc, should I be doing it a different way?
My code is:
-(BOOL)textFieldShouldReturn:(UITextField *)textField{
NSLog(#"We want to unlock for the code %#",self.textField.text);
//Get a device ID, (actually can't do this aymore)
NSString *uniqueIdentifier = #"My iPhone";
NSString *code = self.textField.text;
NSMutableURLRequest *request = [NSMutableURLRequest requestWithURL:[NSURL URLWithString:#"http://www.madasd.co/promos/"]];
request.HTTPMethod=#"POST";
//Set the header fields
[request setValue:#"application/xml; charset=utf-8" forHTTPHeaderField:#"Content-Type"];
NSString *myString = [NSString stringWithFormat:#"rw_app_id=1&code=%#&device_id=%#",code,uniqueIdentifier];
NSLog(#"%#",myString);
NSData *requestBodyData = [myString dataUsingEncoding:NSUTF8StringEncoding];
request.HTTPBody=requestBodyData;
//Create url and fire request
NSURLConnection *conn = [[NSURLConnection alloc] initWithRequest:request delegate:self startImmediately:NO];
[conn start];
return TRUE;
}
- (void)connection:(NSURLConnection *)connection didReceiveData:(NSData *)data{
NSString *string = [[NSString alloc] initWithData:data encoding:NSUTF8StringEncoding];
NSLog(#"%#",string);
}
Second question, I have tested the backend using curl so I know it works fine, however the response I get is "Invalid Request", I think this is because the string I am sending is not correct. Am I doing this correct using the var names and & operators? Any pointers on this would be great! thanks. (Running a LAMP server on Linode!)
EDIT:
Also tried sending as JSON:
[request addValue:#"application/json" forHTTPHeaderField:#"Content-Type"];
[request addValue:#"application/json" forHTTPHeaderField:#"Accept"];
NSDictionary *mapData = [[NSDictionary alloc]initWithObjectsAndKeys:#"1",#"rw_app_id",code,#"code",uniqueIdentifier,#"device_id", nil];
NSError *error = nil;
NSData *requestBodyData = [NSJSONSerialization dataWithJSONObject:mapData options:0 error:&error];
request.HTTPBody=requestBodyData;
Still getting the same error.
A couple of thoughts:
Don't use NSURLConnection. It is deprecated as of iOS 9. Use NSURLSession. See Using NSURLSession in the URL Loading System Programming Guide.
Decide what type of request you need to prepare. You specified application/xml in your header, but are creating a application/x-www-form-urlencoded request. Your Content-Type header must match how you're building the HTTPBody.
What type of request does your server require? x-www-form-urlencoded? XML? JSON?
Also, what type of response does your server provide?
If building a application/x-www-form-urlencoded request (as suggested by the body of your request), you are not properly percent escaping the values (see https://stackoverflow.com/a/20398755/1271826).
If you use delegate based NSURLConnection or NSURLSession, you should not just grab the results in didReceiveData. What you need to do is
Instantiate a NSMutableData before starting the request;
Have didReceiveData merely append to that NSMutableData;
Only when connectionDidFinishLoading: (in NSURLConnection) or URLSession:task:didCompleteWithError: (in NSURLSession) is called, should you then use the NSMutableData.
Alternatively, if using the block-based NSURLSession, this concern is completely eliminated (since you're not implementing any delegate methods). Using completionHandler-based methods of NSURLSession is much easier.
If all of this is too complicated, you might consider using AFNetworking's AFHTTPSessionManager (but not AFHTTPRequestOperationManager) to build your requests. It gets you out of the weeds of properly building requests, implementing delegate methods, etc.
You might need to wrap the strings into a dictionary and get the NSData object from a call to NSJSONSerialization. Though it depends on the form expected by the server.
Just a quick one how do i detect if a login failed here is my code:
- (IBAction)btnTimetable:(id)sender {
NSString *user = _txtUsername.text;
NSString *pass = _txtPassword.text;
NSString *content = [NSString stringWithFormat:#"username=%#&password=%#", user, pass];
NSData *data =[content dataUsingEncoding:NSASCIIStringEncoding allowLossyConversion:YES];
NSString *postlenght=[NSString stringWithFormat:#"%lu",(unsigned long)[data length]];
NSMutableURLRequest *request = [[NSMutableURLRequest alloc] initWithURL:[NSURL URLWithString:#"http://moodle.thomroth.ac.uk/login/index.php?mode=login"]];
[request setHTTPMethod:#"POST"];
[request setValue:postlenght forHTTPHeaderField:#"Content-Length"];
[request setValue:#"application/x-www-form-urlencoded" forHTTPHeaderField:#"Content-Length"];
[request setHTTPBody:data];
//NSError *error=nil;
//NSURLResponse *response=nil;
//NSData *result=[NSURLConnection sendSynchronousRequest:request returningResponse:&response error:&error];
[_webView loadRequest:request];
[self performSelector:#selector(parseTimetable) withObject:nil afterDelay:3.0];
}
i dont even know where to start on this one is there a delegate method to detect such actions ?
As stated in the official Developer forums, UIWebView does not support authentication challenges in iOS. Please read here (requires developer account): UIWebView does not directly support authentication challenges
sendSynchronousRequest:returningResponse:error: should return nil and the status code of the returned response should equal 401 (Unauthorized):
[(NSHTTPURLRequest*)response statusCode] == 401
I would guess, the error parameter should be set to a corresponding error (please check this through printing it to the console).
If you use the delegate approach of NSURLConnection the situation is different:
When NSURLConnection receives a 401 (for example, the connection requires credentials for authentication, or a previous authentication attempt failed), it does invoke the delegate
- (void)connection:(NSURLConnection *)connection
willSendRequestForAuthenticationChallenge:(NSURLAuthenticationChallenge *)challenge;
if implemented, otherwise it invokes these (now considered obsolete methods):
- (BOOL)connection:(NSURLConnection *)connection
canAuthenticateAgainstProtectionSpace:(NSURLProtectionSpace *)protectionSpace;
- (void)connection:(NSURLConnection *)connection
didReceiveAuthenticationChallenge:(NSURLAuthenticationChallenge *)challenge;
- (BOOL)connectionShouldUseCredentialStorage:(NSURLConnection *)connection;
if implemented.
The official documentation provided more information: NSURLConnectionDelegate Protocol Reference.
You can cancel the authentication request, if you decide to do so. As a result, the connection can fail.
If the connection fails, connection:didFailWithError will be invoked.
If you really want to do it using UIWebView you could use it's delegate method and parse code answer of your website.
- (void)webViewDidFinishLoad:(UIWebView *)webView {
NSString *webSource = [_web stringByEvaluatingJavaScriptFromString:#"document.body.innerHTML"];
}
I am making an iPhone app that will need to communicate with the Sendy API. I believe that it uses some kind of JSON, but I'm not really sure, nor do I know where to start. I'm particularly interested in the subscribe portion of the API. Basically, I need to know how to talk to the Sendy API from my app.
Any help is appreciated.
My code:
- (IBAction)submitButtonPressed:(id)sender
{
self.data = [[NSMutableData alloc] initWithLength:0];
NSMutableURLRequest *request = [[NSMutableURLRequest alloc] initWithURL:[NSURL URLWithString:#"http://www.erwaysoftware.com/sendy/subscribe"]];
[request setHTTPMethod:#"POST"];
[request setValue:#"john#test.com" forHTTPHeaderField:#"email"];
[request setValue:#"john" forHTTPHeaderField:#"name"];
[request setValue:#"LxxxxxxxxxxxxxxxxxxxxQ" forHTTPHeaderField:#"list"];
[request setValue:#"true" forHTTPHeaderField:#"boolean"];
NSURLConnection *conn = [NSURLConnection connectionWithRequest:request delegate:self];
[conn start];
}
- (void)connection:(NSURLConnection *)connection didReceiveResponse:(NSURLResponse *)response {
[self.data setLength:0];
}
- (void)connection:(NSURLConnection *)connection didReceiveData:(NSData *)d {
[self.data appendData:d];
}
- (void)connection:(NSURLConnection *)connection didFailWithError:(NSError *)error {
[[[UIAlertView alloc] initWithTitle:NSLocalizedString(#"Error", #"")
message:[error localizedDescription]
delegate:nil
cancelButtonTitle:NSLocalizedString(#"OK", #"")
otherButtonTitles:nil] show];
}
- (void)connectionDidFinishLoading:(NSURLConnection *)connection {
NSString *responseText = [[NSString alloc] initWithData:self.data encoding:NSUTF8StringEncoding];
// Do anything you want with it
NSLog(#"%#", responseText);
}
When the log happens, the string is empty. I know through breakpoints that the last method is called.
Looking at the API it's all just plain text response.
Since it's a POST you can use an NSURLConnection to compose the request. See this question for information on formatting the response.
An alternative is to use something like AFNetworking or RestKit that might be a little more friendly if you're doing more work with APIs.
I'm guessing you've already resolved this but in case anyone else gets stuck here (as I did) I thought I'd post what I did to get it to work.
The first thing you need to do is create a category called NSString+URLEncoding (or whatever) which is going to take your email and name fields from blah#blah.com and turn it into blah%40blah.com. I modified this from the handy blog post found here
#interface NSString (URLEncoding)
-(NSString *)urlEncodeUsingEncoding:(NSStringEncoding)encoding;
#end
#import "NSString+URLEncoding.h"
#implementation NSString (URLEncoding)
-(NSString *)urlEncodeUsingEncoding:(NSStringEncoding)encoding {
return (NSString *)CFBridgingRelease(CFURLCreateStringByAddingPercentEscapes(NULL,
(CFStringRef)self,
NULL,
(CFStringRef)#"!*'\"();:#&=+$,/?%#[]% ",
CFStringConvertNSStringEncodingToEncoding(encoding)));}
#end
Ok so now just import NSString+URLEncoding.h and add the following code and you'll be in business. This post helped me with this part
- (IBAction)submitButtonPressed:(id)sender
{
NSMutableURLRequest *newRequest = [[NSMutableURLRequest alloc]initWithURL:[NSURL URLWithString:#"http://stashdapp.com/sendy/subscribe"]];
[newRequest setHTTPMethod:#"POST"];
[newRequest setValue:#"application/x-www-form-urlencoded; charset=utf-8" forHTTPHeaderField:#"Content-Type"];
NSString *email = #"name#domain.com";
NSString *name = #"First Lastname";
NSString *list = #"XXXXXXXXXXXXXXXXXX";
NSString *postData = [NSString stringWithFormat:#"email=%#&boolean=true&name=%#&list=%#", [email urlEncodeUsingEncoding:NSUTF8StringEncoding],[name urlEncodeUsingEncoding:NSUTF8StringEncoding],list];
[newRequest setHTTPBody:[postData dataUsingEncoding:NSUTF8StringEncoding]];
NSURLConnection *conn = [NSURLConnection connectionWithRequest:newRequest delegate:self];
[conn start];
}
You still include the delegate methods which you quoted in your question.
Hope it helps someone!