diff --git a/config/initializers/graphiql.rb b/config/initializers/graphiql.rb
new file mode 100644
index 0000000..6398b8a
--- /dev/null
+++ b/config/initializers/graphiql.rb
@@ -0,0 +1,6 @@
+require "base64"
+
+GraphiQL::Rails.config.headers['Authorization'] = -> (context) do
+  credentials = Base64.strict_encode64("#{context.params['username']}:#{context.params['password']}")
+  "basic #{credentials}"
+end