adapter-pattern 24 design-patterns 24 builder-pattern 23 factory-pattern 23 iterator-pattern 23 observer-pattern 23 singleton-pattern 23 visitor-pattern 21 strategy-pattern 21 state-pattern 21 proxy-pattern 21 prototype-pattern 21 memento-pattern 21 mediator-pattern 21 design-pattern 21 decorator-pattern 21 composite-pattern 21 bridge-pattern 21 abstract-factory-pattern 21 golang 4 go 2 object-oriented-programming 1 structural-patterns 1 api 1 dao-design-pattern 1 mux-router 1