go-curl

go-curl is a GoLang interface to libcurl, the multiprotocol file transfer library. Similar to the HTTP support in [net/http] (https://pkg.go.dev/net/http), go-curl can be used to fetch objects from a Go program. While go-curl can provide simple fetches, it also exposes most of the functionality of libcurl, including:

Speed - libcurl is very fast.
Multiple protocol (not just HTTP).
SSL, authentication and proxy support.
Support for libcurl's callbacks.

This said, libcurl API can be less easy to learn than net/http.

LICENSE

go-curl is licensed under the Apache License, Version 2.0 (http://www.apache.org/licenses/LICENSE-2.0.html).

Current Development Status

currently stable
READ, WRITE, HEADER, PROGRESS function callback
a Multipart Form supports file uploading
Most curl_easy_setopt option
partly implement share & multi interface
new callback function prototype

Requirements

Any version of Go
libcurl 7.x or higher (including development headers and static/dynamic libs)
Python 3 (used only by configure scripts)

How to Install

$ go get -u github.com/andelf/go-curl

Current Status

Linux x64
- passed go1 (ArchLinux)
Windows x86
- passed go1 (win7, mingw-gcc 4.5.2, curl 7.22.0)
Mac OS
- passed go1 (Mac OS X 10.7.3, curl 7.21.4)

Sample Program

package main

import (
    "fmt"
    curl "github.com/andelf/go-curl"
)

func main() {
    easy := curl.EasyInit()
    defer easy.Cleanup()

    easy.Setopt(curl.OPT_URL, "https://www.baidu.com/")

    // OPTIONAL - make a callback function
    fooTest := func (buf []byte, userdata interface{}) bool {
        println("DEBUG: size=>", len(buf))
        println("DEBUG: content=>", string(buf))
        return true
    }

    easy.Setopt(curl.OPT_WRITEFUNCTION, fooTest)

    if err := easy.Perform(); err != nil {
        fmt.Printf("ERROR: %v\n", err)
    }
}

See also the examples directory!

License

sprive/go-curl

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