Saver

Description

downloads images from your Telegram chat in selected MongoDB collections and saves them locally. Plus, it provides different remote commands for different operations.

current Telegram commands

• !all: shows all images saved in set collection
• !set <collection>: select a collection to save your images to. for ex. !set myCollection
• !getLast: provides last saved image in selected collection
• !get <imageName>: get a specific image from selected collection. for ex. !get img_hdcf45... finds saved image which contains provided image name
• !deleteAll": deletes all images from database
• !info: shows current selected collection

environment variables

• check .env.examples:

# Mongo DB connection
MONGODB_CONNECTION_STRING=mongodb://localhost:27017
MONGODB_DATABASE_STRING=saver-database

# Telegram connection
# How to get a Bot Token? -> https://core.telegram.org/bots#how-do-i-create-a-bot
TELEGRAM_API_TOKEN=<TELEGRAM_API_TOKEN>

# How to get a Chat ID? -> https://stackoverflow.com/a/38388851
# https://api.telegram.org/bot<TOKEN>/getUpdates
TELEGRAM_CHAT_ID=<TELEGRAM_CHAT_ID>

# Some salt to save images with xyz ending
SALT=xyz

Start & Build

• create MongoDB docker-compose up -d
• start app with go run main.go
• build app with go build

MongoDB with Mongosh

• don't forget to run docker-compose up -d to create a mongo database
• use docker exec -it mongodb bash to connect to mongodb-container
• use mongosh to use the mongodb-shell and then run use saver-database

Read all entires

• check collection saver-collection with inserted docs: db["saver-collection"].find()

Delete all entries

• db["saver-collection"].deleteMany({})