Handlers ◦ ListenAndServe ◦ Mux & routing ◦ Request ◦ Restricting Methods ◦ Response ◦ Parsing a request: ▪ Json unmarshal ▪ Reading a body • Calling an API ◦ Client: https://medium.com/@nate 510/don-t-use-go-s-default- http-client-4804cb19f779 ◦ Server • Transport - TLS, setting proxies • CORS • Interfaces • Context • Middleware • Testing • http.Error maybe?