| compress/gzip | Package gzip implements reading and writing of gzip format compressed files, as specified in RFC 1952. |
| 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. |
| fmt | Package fmt implements formatted I/O with functions analogous to C's printf and scanf. |
| github.com/go-playground/form/v4 | Package form Decodes url.Values into Go value(s) and Encodes Go value(s) into url.Values. |
| github.com/go-playground/pkg/v4/io | |
| io | Package io provides basic interfaces to I/O primitives. |
| mime | Package mime implements parts of the MIME spec. |
| 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. |
| path/filepath | Package filepath implements utility routines for manipulating filename paths in a way compatible with the target operating system-defined file paths. |
| strings | Package strings implements simple functions to manipulate UTF-8 encoded strings. |