Telegram Login Widget

Table of Content

• Examples
  • JSON
  • NewAuthorizationDataFromURL
  • NewAuthorizationDataFromURLValues
• FAQ
• License
• Links

Examples

JSON

package main

import (
	"net/http"
	"time"

	http_request_body_json_decoder "entrlcom.dev/http-request-body-json-decoder"
	telegram_login_widget "entrlcom.dev/telegram-login-widget"
	"entrlcom.dev/unit"
)

const limit = unit.B * 512 // 512 B.

// TODO: Update values.
const (
	timeout = time.Second * 10
	token = "XXXXXXXX:XXXXXXXXXXXXXXXXXXXXXXXX"
)

func ServeHTTP(w http.ResponseWriter, r *http.Request) {
	var authorizationData telegram_login_widget.AuthorizationData

	// Decode HTTP request body to authorization data struct.
	if err := http_request_body_json_decoder.Decode(w, r, &authorizationData, limit); err != nil {
		// TODO: Handle error.
		return
	}

	// Validate authorization data.
	if err := authorizationData.Validate(token); err != nil {
		// TODO: Handle error.
		return
	}
	
	// Check whether authorization data is expired.
	if authorizationData.IsExpired(timeout) {
		// TODO: Handle.
		return
	}

	// ...
}

NewAuthorizationDataFromURL

package main

import (
	"net/http"
	"time"

	telegram_login_widget "entrlcom.dev/telegram-login-widget"
)

// TODO: Update values.
const (
	timeout = time.Second * 10
	token = "XXXXXXXX:XXXXXXXXXXXXXXXXXXXXXXXX"
)

func ServeHTTP(w http.ResponseWriter, r *http.Request) {
	authorizationData, err := telegram_login_widget.NewAuthorizationDataFromURL(r.URL.String())
	if err != nil {
		// TODO: Handle error.
		return
	}

	// Validate authorization data.
	if err = authorizationData.Validate(token); err != nil {
		// TODO: Handle error.
		return
	}
	
	// Check whether authorization data is expired.
	if authorizationData.IsExpired(timeout) {
		// TODO: Handle.
		return
	}

	// ...
}

NewAuthorizationDataFromURLValues

package main

import (
	"net/http"
	"time"

	telegram_login_widget "entrlcom.dev/telegram-login-widget"
)

// TODO: Update values.
const (
	timeout = time.Second * 10
	token = "XXXXXXXX:XXXXXXXXXXXXXXXXXXXXXXXX"
)

func ServeHTTP(w http.ResponseWriter, r *http.Request) {
	authorizationData, err := telegram_login_widget.NewAuthorizationDataFromURLValues(r.URL.Query())
	if err != nil {
		// TODO: Handle error.
		return
	}

	// Validate authorization data.
	if err = authorizationData.Validate(token); err != nil {
		// TODO: Handle error.
		return
	}
	
	// Check whether authorization data is expired.
	if authorizationData.IsExpired(timeout) {
		// TODO: Handle.
		return
	}

	// ...
}

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 Validate method on AuthorizationData struct to validate hash.

How to prevent the use of outdated authentication data?

Call IsExpired method on AuthorizationData struct to check whether authentication data is expired.

License

MIT

Links

• Telegram Login Widget