OAuth/OpenID client-side integration

[Robert Stuttaford]

I have the task of integrating sign-in for Facebook, Twitter, Google, LinkedIn and our internal profile sign-in/register functionality in our Google Closure based app.

I've searched and I haven't found any existing code out there for use with Google Closure specifically.

Just wondering if anyone has already climbed this hill and conquered it? It seems like this code would be pretty generic (at least the model code, anyway)?

Does anyone have code they are willing to share, or can anyone point me in the direction of code that's already out there?

Thanks!

Robert