lib/datacite/client.rb in datacite-0.3.0 vs lib/datacite/client.rb in datacite-0.4.0

@@ -10,17 +10,17 @@
     include Dry::Monads[:result]
 
     # @param [String] username
     # @param [String] password
     # @param [String] host
-    def initialize(username:, password:, host: "api.test.datacite.org")
+    def initialize(username: nil, password: nil, host: "api.test.datacite.org")
       @conn = Faraday.new(
         url: "https://#{host}",
         headers: headers
       ) do |conn|
         conn.request :json
-        conn.request :authorization, :basic, username, password
+        conn.request :authorization, :basic, username, password if username
         conn.response :json
       end
     end
 
     # Creates a random DOI
@@ -52,9 +52,24 @@
         }
       }
 
       response = conn.put("/dois/#{id}", request_body.to_json)
       response.success? ? Success(Response.new(response)) : Failure(response)
+    end
+
+    # Determines if a DOI exists
+    # @param [String] id
+    # @returns [Dry::Monads::Result]
+    def exists?(id:)
+      response = conn.head("/dois/#{id}")
+      case response.status
+      when 200
+        Success(true)
+      when 404
+        Success(false)
+      else
+        Failure(response)
+      end
     end
 
     private
 
     # @returns [Dry::Monads::Result]