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OmniAuth is a flexible authentication system utilizing Rack middleware.
OmniAuth will always return a hash of information after authenticating
with an external provider in the Rack environment under the key
omniauth.auth.
This information is meant to be as normalized as possible, so the schema below will be filled to the greatest degree available given the provider upon authentication. Fields marked required will always be present.
provider (required) The provider with which the user
authenticated (e.g. twitter or facebook)
uid (required) An identifier unique to the given provider,
such as a
Twitter user ID. Should be stored as a string.
info (required) A hash containing information about the user
name (required) The best display name known to the
strategy. Usually a concatenation of first and last name, but may also
be an arbitrary designator or nickname for some strategies
email The e-mail of the authenticating user. Should be provided if at all possible (but some sites such as Twitter do not provide this information)
nickname The username of an authenticating user (such
as your @-name from Twitter or GitHub account name)
first_name
last_name
location The general location of the user, usually a city and state.
description A short description of the authenticating user.
image A URL representing a profile image of the
authenticating user. Where possible, should be specified to a square,
roughly 50x50 pixel image.
phone The telephone number of the authenticating user (no formatting is enforced).
urls A hash containing key value pairs of an identifier
for the website and its URL.
For instance, an entry could be
"Blog" => "http://intridea.com/blog"
credentials If the authenticating service provides some
kind of access token or other credentials upon authentication, these
are passed through here.
token Supplied by OAuth and OAuth 2.0 providers, the access token.
secret Supplied by OAuth providers, the access token secret.
extra Contains extra information returned from the
authentication provider. May be in provider-specific formats.
raw_info A hash of all information gathered about a user
in the format it was gathered.
For example, for Twitter users this is a hash representing the JSON hash returned from the Twitter API.
Casiano Rodriguez León 2015-01-07