Read environment variables with ruby ​​file [Super beginner]

I decided to touch ruby ​​for the first time in a few years, so I tried using Google's SpeechToText API. In the process, I had a hard time forgetting how to read the environment variables described in the .env file in the .rb file, so I will summarize them.

First, create an .env file

Place the .env file in the same directory as the .rb file

Dotenv installation

Read environment variables using a gem called dotenv What kind of gem is What is dotenv? .

Do the following on the command line

$ gem install dotenv

And

bundle install

Write an environment variable reading method in the .rb file

sample.rb

require 'dotenv'
Dotenv.load

that's all