tg / whoapi

Go package and command line tool for accessing WhoAPI

whoapi

A simple Go package and command line tool for accessing WhoAPI services.

Installation

You need a go environment set up. See: http://golang.org/doc/install

Grab package and install command line tool:

go get github.com/tg/whoapi/...

Usage

package main

import (
	"encoding/json"
	"fmt"
	"log"

	"github.com/tg/whoapi"
)

func main() {
	// Create client and fetch the data.
	// API key can be also provided in WHOAPI_KEY environmental variable.
	client := &whoapi.Client{Key: "your-api-key"}

	data, err := client.Get("whois", "github.com")
	if err != nil {
		log.Fatal(err)
		// Might be still worth checking whether we got a whois data back.
		// See whoapi.ErrWhoisNotYetSupported for more details.
	}
	
	// Extract whatever you're interested in
	var whois struct {
		Created string `json:"date_created"`
	}
	err = json.Unmarshal(data, &whois)
	if err != nil {
		log.Fatal(err)
	}
	
	fmt.Println("github was created on", whois.Created)
}

CLI

After installing the command line tool shipped with this package, you can query WhoAPI directly from your terminal. Assuming you have your key in WHOAPI_KEY environmental variable, you can simply try the following:

$ whoapi taken github.com
{
	"status": "0",
	"taken": "1"
}

Sorry, but it's already taken.

Caveats

WhoAPI has a bad habit of mixing JSON values for the same key. For example, status code can be either status: 0 or status: "0" (sometimes a number, sometimes a string). This can be pain in statically checked languages like Go when you want to parse the value into a specific type. Taking whoapi taken example from CLI section, if the domain is free, the following response is returned:

$ whoapi taken github666.com
{
	"status": "0",
	"taken": 0
}

This time taken is a number, while before it was a string. There is a whoapi.Int64 type especially for this occasion, which can be unmarshaled from both forms. Use it in your JSON structure when you expect this might happen.

TODO?

• Full response structure for every request type (eliminating the need for manual JSON parsing)
• Automatic throttle limit (limits can be obtained through myaccount request)