lucasprag/hello_header.rb

Created September 16, 2017 16:12

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lucasprag created this gist Sep 16, 2017.

hello_header.rb

-Original file line number
+Diff line change
@@ -0,0 +1,12 @@
+    class HelloHeader
+      def initialize(app)
+        @app = app
+      end
+      def call(env)
+        status, headers, body = @app.call(env)
+        headers['Hello'] = 'World'
+        [status, headers, body]
+      end
+    end