| fmt | Package fmt implements formatted I/O with functions analogous to C's printf and scanf. |
| github.com/gorilla/handlers | Package handlers is a collection of handlers (aka "HTTP middleware") for use with Go's net/http package (or any framework supporting http.Handler). |
| github.com/mkevac/debugcharts | Simple live charts for memory consumption and GC pauses. |
| log | Package log implements a simple logging package. |
| net/http | Package http provides HTTP client and server implementations. |
| net/http/pprof | Package pprof serves via its HTTP server runtime profiling data in the format expected by the pprof visualization tool. |
| runtime | Package runtime contains operations that interact with Go's runtime system, such as functions to control goroutines. |
| time | Package time provides functionality for measuring and displaying time. |