Basic code on Sinatra?

Question

ruby

Can you please explain each line of this Sinatra code:

require 'sinatra'

get '/' do
'Hello world!'
end

Answer 1

If top-level, then something like this: We connect the sinatra library We say that we accept GET requests when accessing the root directory of the web server We specify what our web server will return when accessing a specific path ( / ), the last line is usually the value that the function returns. Closing the previously opened block with the do keyword
require 'sinatra'
get '/' do
'Hello world!'
end