Slim 3 API Skeleton

This is an API skeleton using Slim 3 with content negotiation, authentication, error handling, cache and performance in mind. Error and exception handling is already configured for you. Check config/dependencies.php file.

Content Negotiation

Content Negotiation is handled using a query parameter and the HTTP Header "Accept".

• The default query parameter is "output" and possible values are ("json" or "xml").
• If "output" parameter is not provided the HTTP Header "Accept" is used to determine which "Content type". If is not containing "application/json" or "application/xml" the default output will be "json".

This project use the following packages/components:

• Monolog for logging.
• Slim-HttpCache. Read more
• Noodlehaus's Config to load env.php file.
• PHPUnit for testing.

You can integrate any third-party components found on Packagist:

• Slim-Csrf. Read more
• Slim-Flash. Read more

Run it:

1. $ cd my-app
2. $ php -S 0.0.0.0:8888 -t public public/index.php
3. Browse to http://localhost:8888

Key directories

• app/: directory contains the core code of your application. All class files within the App namespace.
• app/Controllers/: directory contains controllers and actions classes.
• app/Handlers/: directory contains handlers classes (Error, PhpError, NotFound, NotAllowed).
• app/Helpers/: directory contains helpers classes.
• app/Middleware/: directory contains middleware classes.
• app/Renders/: directory contains renders classes for specific responses (json and xml).
• bootstrap/: directory contains files that bootstrap the framework and configure autoloading.
• cache/: directory contains framework generated files for performance optimization such as the route file. Should be writable by your web server.
• cache/routes/: directory is used to store routes generated files. For better performance on production. Should be writable by your web server.
• config/: directory contains all of your application's configuration files (settings, dependencies, middleware).
• logs/: directory contains your application's log files. Should be writable by your web server.
• public/: directory contains the index.php file, which is the entry point for all requests entering your application.
• routes/: directory contains all of the route definitions for your application. By default, 1 route file is included: routes.php.
• tests/: directory contains your automated tests. An example PHPUnit is provided out of the box. To run tests: phpunit -- verbose tests/DefaultRoutesTest.php.
• vendor/: directory contains your Composer dependencies.

Key files

• public/index.php: entry point to application.
• bootstrap/app.php: bootstrap the framework, configure auto-loading, dependencies, routes, etc.
• env.php.dist: environment settings. Must copy it to env.php and modify that one.
• config/dependencies.php: services for Pimple. Including (Database, Exception/Error handlers, Logger, etc).
• config/middleware.php: application middleware.
• config/settings.php: slim and others configurations. Rewrite Slim default settings (displayErrorDetails, routerCacheFile).
• routes/routes.php: all application routes are here.
• app/Controllers/ExampleAction.php: example Action class.
• app/Helpers/ArrayToXml.php: Helper class to convert array to xml. Used by XmlApiView class.
• app/Renders/ApiView.php: Render output based on a PSR-7 Request's Accept header.
• app/Renders/JsonApiView.php: view wrapper for json responses (with error code). Return "meta" and "data". "meta" contains "error" (true/false) and "status" (HTTP Status code).
• app/Renders/XmlApiView.php: view wrapper for xml responses (with error code). Return "meta" and "data". "meta" contains "error" (true/false) and "status" (HTTP Status code).