To build need running this command

$ mix escript.build

First you need build the application, after that you can execute the command to running.

$ ./crawler_elixir 

After that, will generator a file links.json in root folder with all links.

Some changes in the code help to running more fast, example:

This code is responsable to request de page, parse de html and find the links.

The time to running all crawler and save the json

In this code I change to leave fater the code. I used the best tools of Elixir to running in parallel all requests.

If witch this change we have decreased more than half the time.