oauth2_facebook alternatives and similar packages
Based on the "Authentication" category.
Alternatively, view oauth2_facebook alternatives based on common mentions on social networks and blogs.
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Phauxth
Not actively maintained - Authentication library for Phoenix, and other Plug-based, web applications -
Shield
DISCONTINUED. Shield is an OAuth2 Provider hex package and also a standalone microservice build top of the Phoenix Framework and 'authable' package. -
elixir_auth_google
👤Minimalist Google OAuth Authentication for Elixir Apps. Tested, Documented & Maintained. Setup in 5 mins. 🚀 -
aeacus
A simple, secure, and highly configurable Elixir identity [username | email | id | etc.]/password authentication module to use with Ecto. -
zachaeus
An easy to use licensing system, using asymmetric cryptography to generate and validate licenses.
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README
OAuth2 Facebook
A Facebook OAuth2 Provider for Elixir
OAuth2 Facebook is convenience library built on top of oauth2
. It adds Facebook specific functions to interact with the Facebook Graph endpoints using OAuth2.
Installation
# mix.exs
def application do
# Add the application to your list of applications.
# This will ensure that it will be included in a release.
[applications: [:logger, :oauth2_facebook]]
end
defp deps do
# Add the dependency
[{:oauth2_facebook, "~> 0.1"}]
end
Authenticating a User
For an easy-to-use, end-to-end solution enabling users to log in with Facebook see
ueberauth/ueberauth_facebook
One common use-case is authenticating a user's identify. The get_user!
function wraps two actions into one - exchanging the callback code for a short-lived access token and using the access token to return user data:
alias OAuth2.Provider.Facebook
Facebook.get_user!([code: "<callback-code>"], [redirect_uri: "..."])
When successful, it returns the user data:
{:ok, %{"email" => "[email protected]", "gender" => "male", "id" => "101", "link" => "https://www.facebook.com/app_scoped_user_id/101/", "locale" => "en_US", "name" => "user", "timezone" => -4, "updated_time" => "2015-06-05T14:59:20+0000", "verified" => true}}
Returning an Access Token
A valid access token can be used to make multiple requests to the Facebook Graph. The callback code can be exchanged for an access token using get_token!
:
alias OAuth2.Provider.Facebook
client = Facebook.get_token!([code: "<callback-code>"], [redirect_uri: "..."])
When successful, it will return a valid OAuth2.Client
:
%OAuth2.Client{authorize_url: "https://www.facebook.com/dialog/oauth", client_id: "<...>", client_secret: "<...>", headers: [], params: %{}, redirect_uri: "http://localhost:3000/login/facebook/callback", ref: nil, request_opts: [], site: "https://graph.facebook.com", strategy: OAuth2.Provider.Facebook, token: %OAuth2.AccessToken{access_token: "EAABw0PjpdjcBAMDUjWQtZApFV2nFJfhIUWaw3z8MSbi92fVooa2BNBdZBeRaxMcHO94zdmncoFuZBvQQdj0cmXosa8kAZCx7wtlSR5ByT2etOhURZCNjs9DDFfpU456Gk8f0tvzmtYsiMstSKkh69kIzSVOeQIx8TPQOLpXHnRCARNXCiiB1Y", expires_at: 1507926168, other_params: %{}, refresh_token: nil, token_type: "Bearer"}, token_method: :get, token_url: "/v2.8/oauth/access_token"}
Note: The access token is kept under the client's token
key.
Using a Valid Client
A valid client with an access token can then be passed into endpoint specific functions. For example, to return user data using a client
with a valid access token:
alias OAuth2.Provider.Facebook
{:ok, user} = Facebook.get_user(client)
When successful, it will return the same user information:
%{"email" => "[email protected]", "gender" => "male", "id" => "101", "link" => "https://www.facebook.com/app_scoped_user_id/101/", "locale" => "en_US", "name" => "user", "timezone" => -4, "updated_time" => "2015-06-05T14:59:20+0000", "verified" => true}
Filtering User fields
Both get_user!
and get_user
support passing custom query params. These can be used to filter the returned attributes:
alias OAuth2.Provider.Facebook
# Using `get_user!`
user = Facebook.get_user!([code: "<callback-code>"], [redirect_uri: "..."], [fields: "email,name"])
# Using `get_user`
client = Facebook.get_token!([code: "<callback-code>"], [redirect_uri: "..."])
{:ok, user} = Facebook.get_user(client, [fields: "email,name"])
When successful, will return a trimmed down user:
%{"email" => "[email protected]", "id" => "101", "name" => "user"}
Note: The id
value is always returned.