Providing live currency exchange rates in Laravel and Lumen, with configurable provider and caching.
For live currency exchange rates, your choice of provider depends on various factors, including pricing, features, and reliability, which sometimes change. The purpose of this package is to provide a fixed exchange rate endpoint for your application, which can be configured to use one of the various popular providers, and re-configured at any time to use a different provider if necessary.
$ composer require viewflex/forex
Configuration values must be specified in the application's .env file, or in your environment's $_ENV or $_SERVER arrays - all of these options are supported transparently. Below are sample configurations for the currently supported providers. You can also customize the cache refresh interval as described below.
*The free subscription supports only USD as the base currency.
Use the FOREX_CACHE_MINUTES environment variable to specify how long a rate is cached. Unless specified, the default of 720 (12 hours) is used. Setting this variable to 0 disables caching of rates. Using a longer cache refresh interval can help you to avoid interruption of service (or extra charges if using a paid service).