Module: Jamm::OAuth

Defined in:
lib/jamm/oauth.rb

Class Method Summary collapse

Class Method Details

.fetch_oauth_token(client_id, client_secret) ⇒ Object 



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# File 'lib/jamm/oauth.rb', line 20

def self.fetch_oauth_token(client_id, client_secret)
  oauth_base = Jamm.oauth_base
  oauth_endpoint = "#{oauth_base}/oauth2/token"
  read_timeout = Jamm.read_timeout
  open_timeout = Jamm.open_timeout

  headers = {
    authorization: "Basic #{Base64.strict_encode64("#{client_id}:#{client_secret}")}",
    content_type: 'application/x-www-form-urlencoded'
  }
  payload = {
    grant_type: 'client_credentials',
    client_id: client_id
  }
  begin
    response = Jamm.execute_request(method: :post, url: oauth_endpoint, payload: payload, headers: headers,
                                    read_timeout: read_timeout, open_timeout: open_timeout)
  rescue SocketError
    raise OAuthError, 'An unexpected error happens while communicating to OAuth server. Check your network setting'
  rescue RestClient::RequestTimeout
    raise OAuthError, "Timed out over #{read_timeout} sec."
  rescue RestClient::ExceptionWithResponse => e
    raise OAuthError.new 'An unsuccessful response was returned', http_status: e.http_code, http_body: e.http_body
  rescue RestClient::Exception => e
    raise OAuthError, "An unexpected error happens while communicating to OAuth server. #{e}"
  end

  parse_oauth_response(response)
end

.parse_oauth_response(response) ⇒ Object 



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# File 'lib/jamm/oauth.rb', line 50

def self.parse_oauth_response(response)
  begin
    body = JSON.parse(response.body)
  rescue JSON::ParserError
    raise OAuthError.new 'Failed to parse the response from the OAuth server', http_status: response.code,
                                                                               http_body: response.body
  end
  access_token = body['access_token']
  if access_token.nil?
    raise OAuthError.new 'An access token was not found in the response from the OAuth server',
                         http_status: response.code, http_body: response.body
  end

  access_token
end

.token ⇒ Object 



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# File 'lib/jamm/oauth.rb', line 10

def self.token
  if Jamm.client_id.nil? || Jamm.client_secret.nil?
    raise OAuthError, 'No client_id or client_secret is set. ' \
     'Set your merchant client id and client secret using' \
     'Jamm.client_id=<your client id> and Jamm=<your client secret>'
  end

  fetch_oauth_token(Jamm.client_id, Jamm.client_secret)
end