adapter-pattern 14 design-patterns 14 builder-pattern 13 singleton-pattern 13 factory-pattern 13 iterator-pattern 13 observer-pattern 13 visitor-pattern 11 strategy-pattern 11 state-pattern 11 proxy-pattern 11 prototype-pattern 11 memento-pattern 11 mediator-pattern 11 design-pattern 11 decorator-pattern 11 composite-pattern 11 bridge-pattern 11 abstract-factory-pattern 11 golang 4 go 2 object-oriented-programming 1 structural-patterns 1 api 1 dao-design-pattern 1 mux-router 1