diff --git a/lib/queue_manager.rb b/lib/queue_manager.rb
new file mode 100644
index 0000000..479bcfb
--- /dev/null
+++ b/lib/queue_manager.rb
@@ -0,0 +1,37 @@
+# frozen_string_literal: true
+
+require 'json'
+require 'securerandom'
+
+# Main class for managing the upload queue in case of rate limiting
+class QueueManager
+  QUEUE_FILE = 'queue.json'
+
+  def self.enqueue(file_path)
+    id = SecureRandom.uuid
+    entry = { id:, file_path:, timestamp: Time.now.to_i }
+
+    queue = load_queue
+    queue << entry
+    save_queue(queue)
+
+    id
+  end
+
+  def self.dequeue
+    queue = load_queue
+    entry = queue.shift
+    save_queue(queue)
+    entry
+  end
+
+  def self.load_queue
+    return [] unless File.exist?(QUEUE_FILE)
+
+    JSON.parse(File.read(QUEUE_FILE), symbolize_names: true)
+  end
+
+  def self.save_queue(queue)
+    File.write(QUEUE_FILE, JSON.pretty_generate(queue))
+  end
+end