Google Ads Developer Blog

Posted: 30 Jul 2013 01:53 PM PDT

If you're not using OAuth2, this blog post is aimed at you. OAuth2 is the preferred authorization mechanism at Google. That's mainly because it's simpler and easier to use than OAuth1 but also because it's a lot safer than Client Login. In addition, if you're still using Client Login you should be aware it's deprecated.

The following video shows what you need to get started with OAuth2 for Ads. It explains what OAuth2 is, how it works, how to use it with our APIs, the different flows of OAuth2 and some best practices. If you just need the client library resources to get started, skip ahead to the Client Libraries section to get all the resources you'll need to make the switch.

After watching the video you will understand:

OAuth2:

The Authorization mechanism

Better than Client Login:

OAuth2 is more secure
More specific access control
No CAPTCHA challenges

Using OAuth2:

Registering your application
Making the authentication requests
Where OAuth2 tokens fit into regular service calls

Implementing OAuth2:

Full support in our client libraries
What refresh and access tokens are

Authorization Flows:

Best Practices:

Storing refresh_tokens

With that knowledge, updating your applications to use OAuth2 should be trivial. All the client libraries have comprehensive support for OAuth2 and helpful examples to demonstrate its use. For further information on configuring OAuth2 in any of the libraries, see the table below.

Client Library OAuth2 Resources

Library	AdWords / DoubleClick Ad Exchange	DoubleClick For Advertisers	DoubleClick For Publishers
Java	Wiki Page Code Example	Wiki Page Code Example	Wiki Page Code Example
Python	Wiki Page Code Example	Wiki Page Code Example	Wiki Page Code Example
Ruby	Wiki Page Code Example		Wiki Page Code Example
Perl	Wiki Page Code Example
.Net	Wiki Page Code Example	Wiki Page Code Example	Wiki Page Code Example
PHP	Wiki Page Code Example		Wiki Page Code Example

- Paul Matthews, AdWords API Team

Wednesday, July 31, 2013