Using the Google Reader API and OAuth App on iPhone

Question

I want to create an application used in the Google Reader API. But I find out that there is no official API for it - is there a problem using the unofficial API in terms of App Store recommendations / endorsement? Do they use other applications (Reeder, etc.)?

And what is the best way to enter? Is OAuth the preferred method? Is using Janrain a good idea?

Answer 1

Ive since found this: "The Google Objective-C Data API Client Library provides an iPhone static library, Mac OS X infrastructure and source code that make it easy to access data through the Google Data API." code.google.com/p/gdata-objectivec-client is great! However, it does not include the Reader API (since it has not been released).

I was able to access the API by changing (in the OAuthSampleTouch example)

NSString *scope = @"http://www.google.com/m8/feeds/";

in OAuthSampleRootViewControllerTouch.m to

NSString *scope = @"http://www.google.com/reader/api/*";

and

urlStr = @"http://www.google.com/m8/feeds/contacts/default/thin";

to

urlStr = @"http://www.google.com/reader/atom/user/-/label/Design";

where Design is the name of the folder - check out this http://code.google.com/p/pyrfeed/wiki/GoogleReaderAPI for its great help.

---

Update

Since then, I have found that this method is better / easier / less complicated: Native iPhone Reader App Google Reader

Answer 2

Apple , API Google.

RSS, Google Reader . OAuth, HTTP-, cookie, URL- .

() . ASIHTTP . , , / cookie . / .

#pragma mark -
#pragma mark login

//this is your sessionID token you get from the login
//use this in consecutive calls to google reader
//this method returns you the header string you have to add to your request
//[request addRequestHeader: @"Cookie" value: [self sidHeader]];
- (NSString *) sidHeader
{
    return [NSString stringWithFormat: @"SID=%@", [self sid]];
}

- (NSString *) authHeader
{
    return [NSString stringWithFormat: @"GoogleLogin auth=%@",[self auth]];
}


//login to your google account and get the session ID
- (void) login
{
    NSString *username = @"[e-mail]";
    NSString *password = @"mypassword123";
    NSString *loginUrl = @"https://www.google.com/accounts/ClientLogin?client=NNW-Mac";
    NSString *source = @"NNW-Mac"; //let fake NetNewsWire
    NSString *continueUrl = @"http://www.google.com";

    ASIFormDataRequest *request = [ASIFormDataRequest requestWithURL:[NSURL URLWithString: loginUrl]]; // log in & get cookies
    [request addRequestHeader: @"User-Agent" value: @"NetNewsWire/3.2b25 (Mac OS X; http://www.newsgator.com/Individuals/NetNewsWire/)"];

    [request setPostValue: username forKey: @"Email"];
    [request setPostValue: password forKey: @"Passwd"];
    [request setPostValue: @"reader" forKey: @"service"];
    [request setPostValue: source forKey: @"source"];
    [request setPostValue: continueUrl forKey: @"continue"];

    [request setDelegate: self];
    [request setDidFailSelector: @selector(loginRequestFailed:)];
    [request setDidFinishSelector: @selector(loginRequestFinished:)];

    [request start];
}   

-(void)loginRequestFinished:(ASIHTTPRequest *)request
{
    NSString *responseString = [request responseString];

    //login failed
    if ([responseString containsString: @"Error=BadAuthentication" ignoringCase: YES])
    {
        [self setLastError: [self errorWithDescription: @"Bad Username/Passsword" code: 0x001 andErrorLevel: 0x00]];

        if ([delegate respondsToSelector: @selector(gReaderLoginDidFail:)])
        {
            [delegate gReaderLoginDidFail: self];
        }

        return NO;
    }

    //captcha required
    if ([responseString containsString: @"CaptchaRequired" ignoringCase: YES])
    {
        [self setLastError: [self errorWithDescription: @"Captcha Required" code: 0x001 andErrorLevel: 0x00]];

        if ([delegate respondsToSelector: @selector(gReaderLoginDidFail:)])
        {
            [delegate gReaderLoginDidFail: self];
        }

        return NO;
    }

    //extract SID + auth
    NSArray *respArray = [responseString componentsSeparatedByCharactersInSet: [NSCharacterSet newlineCharacterSet]];

    NSString *sidString = [respArray objectAtIndex: 0];
    sidString = [sidString stringByReplacingOccurrencesOfString: @"SID=" withString: @""];
    [self setSid: sidString];

NSString *authString = [respArray objectAtIndex: 2];
authString = [authString stringByReplacingOccurrencesOfString: @"Auth=" withString: @""];
[self setAuth: authString];
    //mesage delegate of success
    if ([delegate respondsToSelector: @selector(gReaderLoginDidSucceed:)])
    {
        [delegate gReaderLoginDidSucceed: self];
    }

    return YES;
}

- (void)loginRequestFailed:(ASIHTTPRequest *)request
{
    NSError *error = [request error];

    //NSLog(@"login request failed with error: %@", [error localizedDescription]);
    [self setLastError: error];

    if ([delegate respondsToSelector: @selector(gReaderLoginDidFail:)])
    {
        [delegate gReaderLoginDidFail: self];
    }

}

sid auth API- Reader.

:

- (ASIHTTPRequest *) requestForAPIEndpoint: (NSString *) apiEndpoint
{
    ASIHTTPRequest *request = [ASIHTTPRequest requestWithURL:[NSURL URLWithString: apiEndpoint]];
    [request addRequestHeader: @"User-Agent" value: @"NetNewsWire/3.2b25 (Mac OS X; http://www.newsgator.com/Individuals/NetNewsWire/)"];
    [request addRequestHeader: @"Cookie" value: [self sidHeader]];
    [request addRequestHeader: @"Authorization" value: [self authHeader]];

    return request;
}

Google Reader API - http://timbroder.com/2007/08/google-reader-api-functions.html

, :)

/edit: , auth ( Google ). , , OAuth, OAuth.