Importing Source Files in Solidity
==================================

.. _tutorial-import:

This tutorial will show you how to import local and external files.

The compilation result will also contain contracts implemented in the imported files.

For a detailed explanation of the ``import`` keyword see the ``Solidity``
`documentation <https://solidity.readthedocs.io/en/develop/layout-of-source-files.html?highlight=import#importing-other-source-files>`_

Importing a local file
----------------------

Other files in Remix can be imported just by specifying their path.
Please use `./` for relative paths to increase portability.

.. image:: tuto_basicimport.png

Importing from Github
----------------------

It is possible to import files directly from github with URLs like
``https://github.com/<owner>/<repo>/<path to the file>``.

.. image:: tuto_importgit.png

Importing from Swarm
--------------------

Files can be imported using all URLs supported by swarm. If you do not have a swarm
node, swarm-gateways.net will be used instead.

.. image:: tuto_importswarm.png