Added ruby example

Author: higoyal01

integration-sqs-to-lambda-with-batch-item-handling/example.rb

@@ -0,0 +1,19 @@
+require 'json'
+
+def lambda_handler(event:, context:)
+  if event
+    batch_item_failures = []
+    sqs_batch_response = {}
+
+    event["Records"].each do |record|
+      begin
+        # process message
+      rescue StandardError => e
+        batch_item_failures << {"itemIdentifier" => record['messageId']}
+      end
+    end
+
+    sqs_batch_response["batchItemFailures"] = batch_item_failures
+    return sqs_batch_response
+  end
+end