| bufio | Package bufio implements buffered I/O. It wraps an io.Reader or io.Writer object, creating another object (Reader or Writer) that also implements the interface but provides buffering and some help for textual I/O. |
| bytes | Package bytes implements functions for the manipulation of byte slices. |
| context | Package context defines the Context type, which carries deadlines, cancellation signals, and other request-scoped values across API boundaries and between processes. |
| crypto/tls | Package tls partially implements TLS 1.2, as specified in RFC 5246, and TLS 1.3, as specified in RFC 8446. |
| encoding | Package encoding defines interfaces shared by other packages that convert data to and from byte-level and textual representations. |
| encoding/json | Package json implements encoding and decoding of JSON as defined in RFC 7159. |
| encoding/xml | Package xml implements a simple XML 1.0 parser that understands XML name spaces. |
| errors | Package errors implements functions to manipulate errors. |
| fmt | Package fmt implements formatted I/O with functions analogous to C's printf and scanf. |
| github.com/labstack/gommon/color | |
| github.com/labstack/gommon/log | |
| golang.org/x/crypto/acme | Package acme provides an implementation of the Automatic Certificate Management Environment (ACME) spec, most famously used by Let's Encrypt. |
| golang.org/x/crypto/acme/autocert | Package autocert provides automatic access to certificates from Let's Encrypt and any other ACME-based CA. |
| golang.org/x/net/http2 | Package http2 implements the HTTP/2 protocol. |
| golang.org/x/net/http2/h2c | Package h2c implements the unencrypted "h2c" form of HTTP/2. |
| io | Package io provides basic interfaces to I/O primitives. |
| io/ioutil | Package ioutil implements some I/O utility functions. |
| log | Package log implements a simple logging package. |
| mime/multipart | Package multipart implements MIME multipart parsing, as defined in RFC 2046. |
| net | Package net provides a portable interface for network I/O, including TCP/IP, UDP, domain name resolution, and Unix domain sockets. |
| net/http | Package http provides HTTP client and server implementations. |
| net/url | Package url parses URLs and implements query escaping. |
| os | Package os provides a platform-independent interface to operating system functionality. |
| path | Package path implements utility routines for manipulating slash-separated paths. |
| path/filepath | Package filepath implements utility routines for manipulating filename paths in a way compatible with the target operating system-defined file paths. |
| reflect | Package reflect implements run-time reflection, allowing a program to manipulate objects with arbitrary types. |
| runtime | Package runtime contains operations that interact with Go's runtime system, such as functions to control goroutines. |
| strconv | Package strconv implements conversions to and from string representations of basic data types. |
| strings | Package strings implements simple functions to manipulate UTF-8 encoded strings. |
| sync | Package sync provides basic synchronization primitives such as mutual exclusion locks. |
| time | Package time provides functionality for measuring and displaying time. |