How to generate a random url safe string with Elixir

Question

I need to be able to generate random url safe strings so I could use those in links (like in an activation link sent to a user\'s email), so how can I generate it? Is there a wa

Answer 1

You can easily define a module to do this. In this example, @chars determines what characters appear in your generated strings.

defmodule StringGenerator do
  @chars "ABCDEFGHIJKLMNOPQRSTUVWXYZ" |> String.split("")

  def string_of_length(length) do
    Enum.reduce((1..length), [], fn (_i, acc) ->
      [Enum.random(@chars) | acc]
    end) |> Enum.join("")
  end
end

StringGenerator.string_of_length(3) # => "YCZ"