benjaminchen / telegram-bot-api

Telegram Bot API (Golang)

Telegram Bot API (Golang)

This package is for supporting Telegram api in Golang. All methods base on Telegram Bot API webpage. If you find anything not matching the official site of Telegram Bot API. Please open a issue. I will fix it as soon as possible. If you hava any suggestions, feel free to discuss with me.

All api usage and information, you can find in Telegram Bot API.

Installation

go get github.com/benjaminchen/telegram-bot-api

Example

There are two mutually exclusive ways of receiving updates for your bot — the getUpdates method on one hand and Webhooks on the other.

GetUpdates

package main

import (
	"log"
	"net/http"
	"strconv"

	"github.com/benjaminchen/telegram-bot-api"
)

func main() {
	bot, err := tgbot.NewBotApi("your-bot-token", &http.Client{})
	if err != nil {
		log.Panic(err)
	}

	payload := &tgbot.GetUpdatesPayload{
		Timeout: 10,
	}
	updates := bot.GetUpdatesChannel(payload)
	for update := range updates {
        fromId := update.Message.From.Id
        fromName := update.Message.From.UserName
        text := update.Message.Text

		log.Printf("Get msg from %d[%s] and msg is: %s", fromId, fromName, text)
		if update.Message.Text != "" {
			continue
		}

		bot.SendMessage(&tgbot.SendMessagePayload{
			ChatId: strconv.Itoa(fromId),
			Text:   update.Message.Text,
		})
	}
}

SetWebhook

package main

import (
	"encoding/json"
	"strconv"
	"io/ioutil"
	"log"
	"net/http"

	"github.com/benjaminchen/telegram-bot-api"
)

func main() {
	bot, err := tgbot.NewBotApi("your-bot-token", &http.Client{})
	if err != nil {
		log.Panic(err)
	}

    payload := &tgbot.SetWebhookPayload{
		Url: "your-webhook-url",
	}
	_, err = bot.SetWebhook(payload)
	if err != nil {
		log.Panic(err)
	}

	http.HandleFunc("/", func(w http.ResponseWriter, r *http.Request) {
		bytes, _ := ioutil.ReadAll(r.Body)

		var update tgbot.Update
		json.Unmarshal(bytes, &update)

		bot.SendMessage(&tgbot.SendMessagePayload{
			ChatId: strconv.Itoa(update.Message.From.Id),
			Text:   update.Message.Text,
		})
	})
	http.ListenAndServe(":8080", nil)
}