Backend for read google sheets operation

app/services/googlesheets_query_service.rb

@@ -0,0 +1,42 @@
+class GooglesheetsQueryService
+
+    attr_accessor :query, :ource, :options, :source_options, :current_user
+
+    def initialize(data_query, options, source_options, current_user)
+        @query = data_query
+        @source = query.data_source
+        @options = options
+        @source_options = source_options
+        @current_user = current_user
+    end
+
+    def process
+
+        operation = query.options["operation"]
+        access_token = source_options["access_token"]
+
+        if operation === "read"
+            spreadsheet_id = query.options["spreadsheet_id"]
+            sheet = query.options["sheet"]
+
+            result = HTTParty.get("https://sheets.googleapis.com/v4/spreadsheets/#{spreadsheet_id}/values/#{sheet}!A1:V101", 
+                headers: { 'Content-Type':
+                'application/json', "Authorization": "Bearer #{access_token}"})
+
+            headers = result["values"][0]
+            values = result["values"][1..]
+
+            parsed_values = []
+            values.each do |value|
+                row = { }
+                headers.each_with_index do |header, index|
+                    row[header] = value[index]
+                end
+                parsed_values << row
+            end
+        end
+        
+
+        { status: 'success', data: parsed_values }
+    end
+end