✍🏿 👐 🙇 Menulis bot telegram di Go dan AWS Lambda 😤 🤞🏻 🥊

Apa yang kita lakukan?

Kami akan menulis bot telegram sederhana yang merespons dengan pesan yang sama yang dikirim.

Mengapa AWS Lambda?

Kemudahan penerapan, cukup tulis sls deploy

, dan lambda sudah diturunkan
Anda hanya membayar saat lambda dijalankan
Tidak perlu mengonfigurasi server apa pun dan khawatir tentang penskalaan

Apa yang kamu butuhkan?

Pergi diinstal
Nodejs dan npm untuk menginstal tanpa server
Akun AWS untuk penerapan

TLDR

Clone repositori https://github.com/R11baka/echotgbot
Tetapkan variabel di file .env BOT_TOKEN
Mengompilasi biner env GOOS=linux go build -o bin/webhook main.go
Bongkar lambda dengan sls deploy
Memasang webhook dengan BOT_TOKEN

Daftar dengan AWS

AWS aws console aws_access_key_id, aws_secret_access_key .aws/credentials

.aws/credentials

cat ~/.aws/credentials
[default]
aws_access_key_id = ADEFEFEFFEBDXK3
aws_secret_access_key = Zy6ewfir/zGaT1B2/o9JDWDSssdrla
region = us-west-1

, BotFather. , BotFather /newbot

, , . , BotFather . , .

Serverless

Serverless- framework, , AWS Lambda . node, nodejs npm. serverless npm

npm install -g serverless

serverless ,

sls -v
Framework Core: 2.35.0 (standalone)
Plugin: 4.5.3
SDK: 4.2.2
Components: 3.8.2

serverless. serverless serverless.yml ,

service: echoBot
useDotenv: true
configValidationMode: error #   ,  , 
frameworkVersion: '>=1.28.0 <2.50.0'

provider:
  region: "us-west-1"
  lambdaHashingVersion: "20201221"
  name: aws
  runtime: go1.x
  logRetentionInDays: 30 #    
  endpointType: regional
  tracing: #    
    apiGateway: true
    lambda: true
  iam:
    role:
      statements:
        - Effect: "Allow"
          Resource: "*"
          Action:
            - "xray:*"
package:
  patterns:
    - "bin/webhook" #   

functions:
  webhook: 
    handler: bin/webhook
    timeout: 15
    description: simple echo bot
    memorySize: 128 #      
    environment:
      BOT_TOKEN: ${env:BOT_TOKEN}
    events:
      - http:
          path: /webhook
          method: ANY
          cors: false

Go

telebot.v2 aws-lambda-go

➜  go mod init testBot
go: creating new go.mod: module testBot
➜  go get -u gopkg.in/tucnak/telebot.v2
go: gopkg.in/tucnak/telebot.v2 upgrade => v2.3.5
go: github.com/pkg/errors upgrade => v0.9.1
➜ go get github.com/aws/aws-lambda-go
go: github.com/aws/aws-lambda-go upgrade => v1.23.0

2. main.go

package main

import (
	"encoding/json"
	"fmt"
	"github.com/aws/aws-lambda-go/events"
	"github.com/aws/aws-lambda-go/lambda"
	tb "gopkg.in/tucnak/telebot.v2"
	"os"
)

func main() {
	settings := tb.Settings{
		Token:       os.Getenv("BOT_TOKEN"),
		Synchronous: true,
		Verbose:     true,
	}
	tgBot, err := tb.NewBot(settings)
	if err != nil {
		fmt.Println(err)
		panic("can't create bot")
	}
	tgBot.Handle(tb.OnText, func(m *tb.Message) {
		message := m.Text
		tgBot.Send(m.Sender, message)
	})
	lambda.Start(func(req events.APIGatewayProxyRequest) (events.APIGatewayProxyResponse, error) {
		var u tb.Update
		if err = json.Unmarshal([]byte(req.Body), &u); err == nil {
			tgBot.ProcessUpdate(u)
		}
		return events.APIGatewayProxyResponse{Body: "ok", StatusCode: 200}, nil

	})
}

tucnak/telebot.v2 , return return events.APIGatewayProxyResponse{Body: "ok", StatusCode: 200}, nil

, .

Deploy

.env API_TOKEN BotFather

echo API_TOKEN={API_TOKEN_FROM_BOTFATHER} > .env

serverlss . .

sls print

env GOOS=linux go build  -o bin/webhook main.go

serverless

serverless deploy  -v

Service Information
service: echoBot
stage: dev
region: us-west-1
stack: echoBot-dev
resources: 11
api keys:
None
endpoints:
ANY - https://y7p31bwnu1.execute-api.us-west-1.amazonaws.com/dev/webhook
functions:
webhook: echoBot-dev-webhook
layers:
None

https://y7p31bwnu1.execute-api.us-west-1.amazonaws.com/dev/webhook => token , webhook

Integrasi dengan telegram

Tetap memberi tahu telegram titik akhir mana yang harus ditarik saat menerima pesan. Ini dilakukan dengan perintah setWebhook

curl https://api.telegram.org/bot{YOUR_TOKEN}/setWebhook?url={YOUR_DEPLOYED_AWS_URL}

Memeriksa apakah webhook telah diinstal dilakukan menggunakan getWebhookInfo

➜  ~ curl https://api.telegram.org/bot1324913549:AAE1zYMH6K3hF2TOgUQoIP-E1g4rMIamck/setWebhook\?url\= https://y7p31bwnu1.execute-api.us-west-1.amazonaws.com/dev/webhook
{"ok":true,"result":true,"description":"Webhook was set"}
➜  ~ curl https://api.telegram.org/bot1324913549:AAE1zYMH6K3hF2TOgUQoIP-E1g4rMIamck/getWebhookInfo
{"ok":true,"result":{"url":"https://y7p31bwnu1.execute-api.us-west-1.amazonaws.com/dev/webhook","has_custom_certificate":false,"pending_update_count":0,"max_connections":40,"ip_address":"184.169.148.254"}}

Kesalahan

Jika ada yang tidak beres, buka CloudWatch dan lihat log, atau Anda juga dapat melihat log dari konsol

sls logs -f webhook

Menulis bot telegram di Go dan AWS Lambda