Implementation of no file for loading credentials

Gemfile

@@ -12,4 +12,5 @@ gem 'http','~> 4.4.0'
 gem 'logger','~> 1.4.2'
 gem 'google'
 gem 'googleauth'
-gem 'google-api-client'
\ No newline at end of file
+gem 'google-api-client'
+gem 'tempfile'
\ No newline at end of file

google-wedoops.gemspec

@@ -35,6 +35,7 @@ Gem::Specification.new do |spec|
   spec.add_dependency 'google'
   spec.add_dependency 'googleauth'
   spec.add_dependency 'google-api-client'
+  spec.add_dependency 'tempfile'
   
   
   spec.add_development_dependency 'bundler', '~> 2.1.4'

lib/google-wedoops/authenticator.rb

 require  'googleauth'
 require 'googleauth/stores/file_token_store'
+require 'tempfile'
 
 module Wedoops
     module Google
@@ -10,8 +11,13 @@ module Wedoops
 
             def initialize(credentials,scopes='https://www.googleapis.com/auth/drive')
                 puts "Incilizalizando authenticator"
-                raise "Unable to initialize with credentials file #{credentials}" unless File.exists?(credentials)
-                @credentials_file_path = credentials
+                if File.exists?(credentials)
+                    puts "Loading credentials from file"
+                    @credentials_file_path = credentials
+                else
+                    @credentials_json = credentials
+                end
+                
                 @scopes = scopes
                 @authenticate_by=nil
                 @credentials=nil
@@ -21,9 +27,16 @@ module Wedoops
             def auth_by_console(user_id)
                 puts "Authenticating from console"
                 scope = @scopes
-                client_id = ::Google::Auth::ClientId.from_file(@credentials_file_path)
+                client_id = nil
+                unless @credentials_json.nil?
+                    client_id = ::Google::Auth::ClientId.from_hash(@credentials_json)
+                else
+                    client_id = ::Google::Auth::ClientId.from_file(@credentials_file_path)
+                end
+                token_file = Tempfile.new(user_id)
+                token_file.close
                 token_store = ::Google::Auth::Stores::FileTokenStore.new(
-                :file => './tokens/tokens.yaml')
+                :file => token_file.path)
                 authorizer = ::Google::Auth::UserAuthorizer.new(client_id, scope, token_store)
                 
                 credentials = authorizer.get_credentials(user_id)
@@ -40,9 +53,17 @@ module Wedoops
             end
         
             def auth_by_sa(user_id)
-                @credentials = ::Google::Auth::ServiceAccountCredentials.make_creds(
-                    json_key_io: File.open(@credentials_file_path),
-                    scope: @scopes)
+                
+                unless @credentials_file_path.nil?
+                    @credentials = ::Google::Auth::ServiceAccountCredentials.make_creds(
+                        json_key_io: File.open(@credentials_file_path),
+                        scope: @scopes)
+                else
+                    @credentials = ::Google::Auth::ServiceAccountCredentials.make_creds(
+                        json_key_io: @credentials_json,
+                        scope: @scopes)
+                end
+                
                 @credentials.sub = user_id 
                 ::Google::Apis::RequestOptions.default.authorization = @credentials
                 @authenticated_by="service_account"