Updated google setup instructions and fixed github with url

Author: auser

README.md

@@ -285,7 +285,7 @@ To add Google auth to our application, first we'll need to create a google appli
 
 We need to enable the `Identity Toolkit API` API. Click on `Enable API` and add this api to your app. Once it's enabled, we'll need to collect our credentials.
 
-Navigate to the `Credentials` tab and create a new credential. Create a **web API credential**. Take note of the client id and the URL scheme. In addition, make sure to set the bundle ID as the bundle id in our application in Xcode:
+Navigate to the `Credentials` tab and create a new credential. Create an **iOS API credential**. Take note of the `client_id` and the `iOS URL scheme`. In addition, make sure to set the bundle ID as the bundle id in our application in Xcode:
 
 ![](./resources/google/creds.png)
 
@@ -299,8 +299,7 @@ Finally, add the `client_id` credential as the id from the url page as well as t
 const config =  {
   google: {
     callback_url: `[IOS SCHEME]:/google`,
-    client_id: 'YOUR_CLIENT_ID',
-    client_secret: 'YOUR_CLIENT_SECRET'
+    client_id: 'YOUR_CLIENT_ID'
   }
 }
 ```

ios/OAuthManager/OAuthManager.m

@@ -551,7 +551,6 @@ - (NSDictionary *) dictionaryForCredentialKeys:(NSObject *) credential
         } else {
             id value = [credential valueForKey:key];
 
-            NSLog(@"key: %@ = %@", key, value);
             if (value == nil) {
 
             } else if ([value isKindOfClass:[NSNumber class]]

lib/authProviders.js

@@ -56,6 +56,7 @@ export const authProviders = {
     auth_version: '2.0',
     authorize_url: 'https://github.com/login/oauth/authorize',
     access_token_url: 'https://github.com/login/oauth/access_token',
+    api_url: 'https://api.github.com',
     callback_url: ({app_name}) => `${app_name}://oauth`,
     validate: validate()
   }

react-native-oauth.js

@@ -107,13 +107,14 @@ export default class OAuthManager {
     invariant(OAuthManager.isSupported(name), `The provider ${name} is not supported yet`);
 
     const providerCfg = Object.assign({}, authProviders[name]);
-    let { validate = identity, transform = identity, callback_url } = providerCfg;
+    let { validate = identity, transform = identity, callback_url, api_url } = providerCfg;
     delete providerCfg.transform;
     delete providerCfg.validate;
 
     let config = Object.assign({}, {
       app_name: this.appName,
-      callback_url
+      callback_url,
+      api_url
     }, providerCfg, props);
 
     config = Object.keys(config)
@@ -123,6 +124,7 @@ export default class OAuthManager {
       }), {});
 
     validate(config);
+
     return promisify('configureProvider')(name, config);
   }