Discord Ruby bot does not respond to user joining - ruby

Question

I am creating a simple bot that interacts with a custom database. When a user joins the server in discord, the bot has to take his ID and compare it with the ID in the database. I decided to start small, just greet the user.
After writing some simple code, the bot starts up without any problems, but when a user joins the server, the bot simply doesn't respond. I tried other commands like: channel_create, the bot responds to them
P.S. In addition to this function, there are other commands in the bot code. Ruby v2.5.2
require 'pg'
require 'discordrb'
require 'dotenv/load'
bot = Discordrb::Commands::CommandBot.new(token: 'TOKEN',
client_id: 'client_id',
prefix: '!')
bot.member_join do
bot.send_message(channel_id, 'Hi!')
end
bot.run

Answer 1

I haven't used the discord gem before but the docs say that you need to call bot.run in the code to tell the bot to run. It looks like you don't have that line in your code example.
https://github.com/shardlab/discordrb#usage

Answer 2

I was able to get the bot to respond to 'Ping!' however I wasn't able to get the 'member_join' event to trigger.
Here is my code:
require 'discordrb'
bot = Discordrb::Bot.new token: 'mytoken'
puts "This bot's invite URL is #{bot.invite_url}."
puts 'Click on it to invite it to your server.'
bot.member_join do |event|
puts 'this never seems to run'
event.send_message('Hi!')
end
bot.message(content: 'Ping!') do |event|
puts 'this runs fine'
event.respond 'Pong!'
end
bot.run
My advice is to open an issue with the Gem here: https://github.com/shardlab/discordrb/issues