Magento2 Currency Services

This is a module that allows to update currency rates from addition external sources.

List of source services

1. Finance Google
2. European Central Bank
3. Fixer

Notes

1. Fixer

   [The old, deprecated Fixer API will be discontinued on June 1st, 2018]
   We are happy to announce the complete relaunch of fixer.io into a more 
   stable, more secure, and much more advanced currency & exchange rate 
   conversion API platform. While the core structure of our API remains 
   unchanged, all users of the legacy Fixer API will be required to sign 
   up for a free API access key and perform a few simple changes to their 
   integration. To learn more about the changes that are required.
   

   Be aware that free access to Fixer API has limited functionality.

   You can setup Access Token for Fixer API in your administration panel
   for Magento.

2. Finance Google

   New changes were introduces by Google and now it's possible only parse
   HTML to get required information.

   Be aware about that Google may change it HTML structure at any time

3. European Central Bank

   The reference rates are usually updated around 16:00 CET on every working 
   day, except on TARGET closing days. They are based on a regular daily 
   concertation procedure between central banks across Europe, which normally 
   takes place at 14:15 CET.
   

   Be aware about low refresh rate

Install

$ composer require oxcom/magento2-currency-services
$ bin/magento module:enable OxCom_MagentoCurrencyServices
$ bin/magento setup:upgrade
$ bin/magento setup:di:compile

CLI commands

Rates can be imported manually per source, without waiting for cron or using
the admin panel:

$ bin/magento oxcom:importrates:ecb
$ bin/magento oxcom:importrates:fixer
$ bin/magento oxcom:importrates:google

Each command fetches rates from the given source and saves them, same as
admin System > Currency Rates > Import Now. Non-zero exit code + error
output if a rate can't be retrieved.

Commands are registered via DI, so after install run setup:upgrade (and
setup:di:compile in production mode) / flush cache before they show up in
bin/magento list.

Tests

By default, local test runs alternate weekly between real sources (internet
connection required) and local fixtures. Setting the CI environment variable
forces fixture (mocked) mode — no network access needed:

$ composer install
$ CI=1 vendor/bin/phpunit -c Test/phpunit.xml --no-coverage

Composer scripts are available for all checks:

$ composer cs    # phpcs (PSR-12 + Slevomat)
$ composer stan  # phpstan analyse
$ composer test  # phpunit (no coverage)