class OAuth::Consumer

• OAuth::Consumer
• Reference
• Object

Overview

An OAuth consumer.

For a quick example of how to authenticate an HTTP::Client with OAuth if you already have an access token, check the OAuth module description.

This class also provides methods to get request tokens, build authorize URIs and get access tokens, as specified by RFC 5849.

Example

require "oauth"

consumer_key = "some_key"
consumer_secret = "some_secret"
oauth_callback = "http://some.callback"

# Create consumer, optionally pass custom URIs if needed,
# if the request, authorize or access_token URIs are not the standard ones
# (they can also be absolute URLs)
consumer = OAuth::Consumer.new("api.example.com", consumer_key, consumer_secret)

# Get a request token.
# We probably need to save this somewhere to get it back in the
# callback URL (saving token and secret should be enough)
request_token = consumer.get_request_token(oauth_callback)

# Build an authorize URI
authorize_uri = consumer.get_authorize_uri(request_token, oauth_callback)

# Redirect the user to `authorize_uri`...
#
# ...
#
# When http://some.callback is hit, once the user authorized the access,
# we resume our logic to finally get an access token. The callback URL
# should receive an `oauth_verifier` parameter that we need to use.
oauth_verifier = request.params["oauth_verifier"]

# Get the access token
access_token = consumer.get_access_token(request_token, oauth_verifier)

# Probably save the access token for reuse... This can be done
# with `to_json` and `from_json`.

# Use the token to authenticate an HTTP::Client
client = HTTP::Client.new("api.example.com", tls: true)
access_token.authenticate(client, consumer_key, consumer_secret)

# And do requests as usual
client.get "/some_path"

Defined in:

Constructors

• .new(host : String, consumer_key : String, consumer_secret : String, port : Int32? = nil, scheme : String = "https", request_token_uri : String = "/oauth/request_token", authorize_uri : String = "/oauth/authorize", access_token_uri : String = "/oauth/access_token")

  Creates an OAuth consumer.

Instance Method Summary

• #authenticate(client : HTTP::Client, token : AccessToken) : Nil

  Authenticated an HTTP::Client to add an OAuth authorization header, as specified by RFC 5849, Section 3.

• #get_access_token(request_token, oauth_verifier, extra_params = nil) : AccessToken

  Gets an access token from a previously obtained request token and an oauth_verifier obtained from an authorize URI, as specified by RFC 5849, Section 2.3.

• #get_authorize_uri(request_token, oauth_callback = nil) : String

  Returns an authorize URI from a given request token to redirect the user to obtain an access token, as specified by RFC 5849, Section 2.2.

• #get_authorize_uri(request_token, oauth_callback = nil, &block : HTTP::Params::Builder -> ) : String

  Returns an authorize URI from a given request token to redirect the user to obtain an access token, as specified by RFC 5849, Section 2.2.

• #get_request_token(oauth_callback = "oob")

  Obtains a request token, also known as "temporary credentials", as specified by RFC 5849, Section 2.1.

Constructor Detail

Instance Method Detail