NAME
OAuth2::Client::Google -- Authenticate with Google using OAuth2.
Quick how-to
Go to http://console.developers.google.com and create a project.
Set up credentials for a web server and set your redirect URIs.
Download the JSON file (client_id.json).
In your application, create an oauth2 object like this:
my $oauth = OAuth2::Client::Google.new(
config => from-json('./client_id.json'.IO.slurp),
redirect-uri => 'http://localhost:3334/oauth',
scope => 'email'
);
where redirect-uri is one of your redirect URIs and scope is a space or comma-separated list of scopes from https://developers.google.com/identity/protocols/googlescopes.
To authenticate, redirect the user to
$oauth.auth-uri
Then when they come back and send a request to '/oauth', grab the "code" parameter from the query string. Use it to call
my $token = $oauth.code-to-token(code => $code)
This will give you $token<access_token>
, which you can then use with google APIs.
If you also included "email" in the scope, you will get id-token, which you can use like this:
my $identity = $oauth.verify-id(id-token => $token<id_token>)
which has, e.g. $identity<email>
and $identity<given_name>
.
For a working example, see eg/get-calendar-data.p6.
STATUS
SEE ALSO
https://developers.google.com/identity/protocols/OAuth2WebServer
TODO
Better documentation
Refresh tokens