A telegram bot to report stocks and currency conversion rate values, written in Go.

The code is configured to send messages in times defined by me, suiting my needs. For this, I used robfig/cron library to create cron schedules. The configuration is the same as a crontab. If you need help to create a cron, here is a link to help you.

Also, if you want to add another stock or replace the current one, just do the following:

applStock, err := quote.Get("APPL")
if err != nil {
    return nil, err
}
values = append(values, types.NewFinance(applStock))

In this example, I used Apple stock symbol to fetch information about their stocks.

For currencies, the code is almost the same:

eurBrl, err := forex.Get("EURBRL=X")
if err != nil {
    return nil, err
}
values = append(values, types.NewFinance(&eurBrl.Quote))

The code above will fetch information about how much does a EUR costs in BRL.

Don't forget to update the container timezone accordingly. The default is set to my location America/Sao_Paulo. All you need is to update this line from the Dockerfile:

ENV TZ=America/Sao_Paulo

Before executing the code, you need to set up a bot and have a telegram group. You will need a group ID in which the bot will send messages to and a token for your bot. To get the group ID, just add the IDBot to the group and send a /getgroupid message. For the bot, just follow this tutorial and at the end of the set up, a token will be generated for you.

Last step is to consume the group ID and the bot token. Just replace these lines on main.go:

telegramToken  = "<my-bot-token>"
telegramChatID = int64(<my-group-id>)

• The simple way (if you have Golang already installed in your machine)
  • go run main.go
• The simple way with Docker (yeah, you don't have to install any dependencies)
  • docker build . then
  • docker run --detach --name stocksbot <image-name>

That's it. Feel free to provide feedback and/or report issues.