1 files changed, 20 insertions, 0 deletions
diff --git a/lib/plum/frame/goaway.rb b/lib/plum/frame/goaway.rb
new file mode 100644
index 0000000..e1e0097
--- /dev/null
+++ b/lib/plum/frame/goaway.rb
@@ -0,0 +1,20 @@
+# frozen-string-literal: true
+
+using Plum::BinaryString
+module Plum
+  class Frame::Goaway < Frame
+    register_subclass 0x07
+
+    # Creates a GOAWAY frame.
+    # @param last_id [Integer] The biggest processed stream ID.
+    # @param error_type [Symbol] The error type defined in RFC 7540 Section 7.
+    # @param message [String] Additional debug data.
+    # @see RFC 7540 Section 6.8
+    def initialize(last_id, error_type, message = "")
+      payload = String.new.push_uint32(last_id)
+                          .push_uint32(HTTPError::ERROR_CODES[error_type])
+                          .push(message)
+      initialize_base(type: :goaway, stream_id: 0, payload: payload)
+    end
+  end
+end