Cannot insert moment - Google Plus API - ios

Question

I have an iOS Application which authenticates with the Google Plus API via OAuth 2.0. The issue I have is that I can't POST my moment even though I have followed the Google Documentation exactly. Here is my POST request:
NSString *gp_moment = [NSString stringWithFormat:#"https://www.googleapis.com/plus/v1/people/me/moments/vault?access_token=%#", token_gplus];
NSString *urlString = gp_moment;
NSMutableURLRequest *request = [[NSMutableURLRequest alloc] init];
[request setURL:[NSURL URLWithString:urlString]];
[request setHTTPMethod:#"POST"];
// Set the header - Content-Type.
NSDictionary *the_header = #{#"Content-type" : #"application/json",
#"userId" : #"me",
#"collection" : #"vault",
#"requestvisibleactions" : #"http://schemas.google.com/AddActivity"};
[request setAllHTTPHeaderFields:the_header];
// Set the metadata for the GP Moment (eg: name). - request_visible_actions
NSDictionary *metadata = #{#"target" : #{
#"id" : #"replacewithuniqueidforaddtarget",
#"image" : #"http://www.google.com/s2/static/images/GoogleyEyes.png",
#"type": #"http://schema.org/CreativeWork",
#"description" : #"test_desc",
#"name" : #"TESTNAME",
},
#"type" : #"http://schemas.google.com/AddActivity"};
// Convert metadata into JSON format and submit.
NSError *jError = nil;
NSData *jsonData = [NSJSONSerialization dataWithJSONObject:metadata options:NSJSONWritingPrettyPrinted error:&jError];
[request setHTTPBody:jsonData];
NSHTTPURLResponse *response = nil;
NSError *error = nil;
NSData *returnedData;
returnedData = [NSURLConnection sendSynchronousRequest:request returningResponse:&response error:&error];
NSDictionary *headers = [response allHeaderFields];
NSLog(#"DATA: %#", [[NSString alloc] initWithData:returnedData encoding:NSASCIIStringEncoding]);
NSLog(#"%#", headers);
NSLog(#"%#", response);
NSLog(#"%#", error);
UPDATE - HOW I AM GETTING THE OAUTH TOKEN
I am getting the token by using the GTMOAuth2 iOS library provided by Google. It has 4 main classes which I am using:
This is the code I have implemented from the classes into my ViewController:
-(GTMOAuth2Authentication *)begin_authorization {
// Set the token URL to the token endpoint.
NSURL *tokenURL;
// Set a bogus redirect URI. It won't actually be used as the redirect will
// be intercepted by the OAuth library and handled in the app.
NSString *redirectURI;
GTMOAuth2Authentication *auth;
tokenURL = [NSURL URLWithString:#"https://accounts.google.com/o/oauth2/token"];
redirectURI = #"http://localhost:3000/oauth/callback/";
auth = [GTMOAuth2Authentication authenticationWithServiceProvider:#"GooglePlus" tokenURL:tokenURL redirectURI:redirectURI clientID:kMyClientID_gplus clientSecret:kMyClientSecret_gplus];
[auth setScope:#"https://www.googleapis.com/auth/plus.login"];
// Set the appropriate token type.
[auth setTokenType:#"Bearer"];
return auth;
}
-(void)authorize:(NSString *)service {
GTMOAuth2Authentication *auth = [self begin_authorization];
// Prepare the Authorization URL. We will pass in the name of the service
// that we wish to authorize with.
NSURL *authURL;
authURL = [NSURL URLWithString:[NSString stringWithFormat:#"https://accounts.google.com/o/oauth2/auth/"]];
NSString *keyname;
keyname = [NSString stringWithFormat:#"GooglePlus"];
// Display the authentication view
GTMOAuth2ViewControllerTouch *viewController;
viewController = [[GTMOAuth2ViewControllerTouch alloc] initWithAuthentication:auth authorizationURL:authURL keychainItemName:keyname delegate:self finishedSelector:#selector(viewController:finishedWithAuth:error:)];
[viewController setBrowserCookiesURL:[NSURL URLWithString:#"https://accounts.google.com/o/oauth2/auth/"]];
// Push the authentication view to our navigation controller instance
[[self navigationController] pushViewController:viewController animated:YES];
}
-(void)viewController:(GTMOAuth2ViewControllerTouch *)viewController finishedWithAuth:(GTMOAuth2Authentication *)auth error:(NSError *)error {
if (error != nil) {
// Authentication failed
UIAlertView *alertView = [[UIAlertView alloc] initWithTitle:#"Authorization Failed" message:[error localizedDescription] delegate:self cancelButtonTitle:#"Dismiss" otherButtonTitles:nil];
[alertView show];
}
else {
// Authentication succeeded
// Assign the access token to the instance property for later use
account_check = auth.accessToken;
NSUserDefaults *defaults = [NSUserDefaults standardUserDefaults];
[defaults setObject:account_check forKey:#"gp_token"];
[defaults synchronize];
}
}
In the GTMOAuth2SignIn.m file I am also setting the offline_access and "requestvisisbleactions" parameters like so:
NSMutableDictionary *paramsDict = [NSMutableDictionary dictionaryWithObjectsAndKeys:
#"code", #"response_type",
clientID, #"client_id",
scope, #"scope", // scope may be nil
#"force", #"approval_prompt",
#"offline", #"access_type",
#"http://schemas.google.com/AddActivity", #"requestvisibleactions",
nil];
UPDATE - 2
I have tried looking through all the Google Plus documentation as well as looking through the differences between "requestvisisbleactions" and "request_visisble_actions" and still nothing works. Does anyone know what is wrong?
UPDATE - 3 - The error I am still getting
I keep on getting this error from Google Plus API. I just don't know why...:
{
"error": {
"errors": [
{
"domain": "global",
"reason": "unauthorized",
"message": "Unauthorized"
}
],
"code": 401,
"message": "Unauthorized"
}
}

Answer 1

I believe that you need to use request_visible_actions. So your parameters might be set as
NSMutableDictionary *paramsDict = [NSMutableDictionary dictionaryWithObjectsAndKeys:
#"code", #"response_type",
clientID, #"client_id",
scope, #"scope", // scope may be nil
#"force", #"approval_prompt",
#"offline", #"access_type",
#"http://schemas.google.com/AddActivity", #"request_visible_actions",
nil];