Telegram Login Widget

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Telegram Login Widget library for Go/Golang.

Table of Content

• Usage/Examples
  • Unmarshal JSON
  • NewFromQuery
  • NewFromURI
• FAQ
• License
• Links

Usage/Examples

Unmarshal JSON

package main

import (
	"encoding/json"
)

// Telegram bot token.
const token = "XXXXXXXX:XXXXXXXXXXXXXXXXXXXXXXXX"

func main() {
	// 1. Get "AuthorizationData" from JSON.
	data := []byte(`{"first_name":"Klim","hash":"b7a7fc776729077786e4190aec2c5dcecd2ec66ae0faf1b44316d541b955da95","last_name":"Sidorov","photo_url":"https://t.me/klimsidorov","username":"klimsidorov","auth_date":976255200,"id":1}`)

	var modelAuthorizationData telegramloginwidget.AuthorizationData

	if err := json.Unmarshal(data, &modelAuthorizationData); err != nil {
		return
	}

	// 2. Call "Check" method to validate hash.
	if err := modelAuthorizationData.Check(token); err != nil {
		// Invalid hash.
		return
	}

	// Hash is valid.
}

NewFromQuery

package main

import (
	"net/url"

	"github.com/LipsarHQ/go-telegram-login-widget"
)

// Telegram bot token.
const token = "XXXXXXXX:XXXXXXXXXXXXXXXXXXXXXXXX"

func main() {
	// 1. Get "AuthorizationData" from url.Values.
	values := url.Values{
		"auth_date":  []string{"976255200"},
		"first_name": []string{"Klim"},
		"hash":       []string{"b7a7fc776729077786e4190aec2c5dcecd2ec66ae0faf1b44316d541b955da95"},
		"id":         []string{"1"},
		"last_name":  []string{"Sidorov"},
		"photo_url":  []string{"https://t.me/klimsidorov"},
		"username":   []string{"klimsidorov"},
	}

	modelAuthorizationData, err := telegramloginwidget.NewFromQuery(values)
	if err != nil {
		return
	}

	// 2. Call "Check" method to validate hash.
	if err = modelAuthorizationData.Check(token); err != nil {
		// Invalid hash.
		return
	}

	// Hash is valid.
}

NewFromURI

package main

import (
	"github.com/LipsarHQ/go-telegram-login-widget"
)

// Telegram bot token.
const token = "XXXXXXXX:XXXXXXXXXXXXXXXXXXXXXXXX"

func main() {
	// 1. Get "AuthorizationData" from uri.
	const uri = "https://example.com/?auth_date=976255200&first_name=Klim&hash=b7a7fc776729077786e4190aec2c5dcecd2ec66ae0faf1b44316d541b955da95&id=1&last_name=Sidorov&photo_url=https%3A%2F%2Ft.me%2Fklimsidorov&username=klimsidorov"

	modelAuthorizationData, err := telegramloginwidget.NewFromURI(uri)
	if err != nil {
		return
	}

	// 2. Call "Check" method to validate hash.
	if err = modelAuthorizationData.Check(token); err != nil {
		// Invalid hash.
		return
	}

	// Hash is valid.
}

FAQ

What is Telegram Login Widget?

The Telegram login widget is a simple way to authorize users on your website. Check out this page for a general overview of the widget.

How to validate hash?

Call Check method on AuthorizationData struct to validate hash.

How to calculate hash (for debug purpose)?

Call Sum method on AuthorizationData struct to calculate hash.

License

MIT

Links

• Telegram Login Widget