Go A2S

As the underlying A2S protocol seldoms ever have changes, this library will not have any changes either, rather than an indication of unmaintained.

An implementation of Source A2S Queries

Godoc is available here: https://godoc.org/github.com/rumblefrog/go-a2s

Note: Only supports Source engine and above, Goldsource is not supported

Guides

Installing

go get -u github.com/rumblefrog/go-a2s

Querying

package main

import (
    "github.com/rumblefrog/go-a2s"
)

func main() {
    client, err := a2s.NewClient("ServerIP:Port")

    if err != nil {
        // Handle error
    }

    defer client.Close()

    info, err := client.QueryInfo() // QueryInfo, QueryPlayer, QueryRules

    if err != nil {
        // Handle error
    }

    // ...
}

Setting client options

package main

import (
    "github.com/rumblefrog/go-a2s"
)

func main() {
    client, err := a2s.NewClient(
        "ServerIP:Port",
        a2s.SetMaxPacketSize(14000), // Some engine does not follow the protocol spec, and may require bigger packet buffer
        a2s.TimeoutOption(time.Second * 5), // Setting timeout option. Default is 3 seconds
        // ... Other options
    )

    if err != nil {
        // Handle error
    }

    defer client.Close()

    // ...
}

Credits

• Dvander's Blaster for the packet logics
• xPaw's PHP Source Query for query specific logics