Tackling scalability challenges in large monoliths with strategies like multi-application infra, circuit fuse, and hybrid DB optimization
Read the full article on Medium
In this repository, you will find examples for:
- Multi Application Infrastructure
- Circuit Fuse for Distributed Databases
- Hybrid Optimizations MySQL + PHP combination
- Clone the repository.
- Run
composer install. - Run
php artisan migrate. - Run
php artisan serve(so you can test the URls).
The key idea is to boot a separate Laravel application instance for the REST API, complete with its own HTTP Kernel and exception handler. This isolates its global middleware, service providers, and error handling from the main application.
The applications defined here are:
- app/Http/RestApi/RestApiApplication.php
- app/Http/Monolith/MonolithApplication.php
You can visit the following URLs to try it out:
- http://127.0.0.1:8000/rest-api/test
- http://127.0.0.1:8000/web/test
- http://127.0.0.1:8000/rest-api/test/exception
- http://127.0.0.1:8000/web/test/exception
The circuit fuse serves as a pseudo circuit breaker that will absorb the shock when the database is down. The goal of such a layer is to return an empty state for missing tables (due to replication errors).
The logic is defined in: app/Core/Database/Concerns/HandlesConnectionErrors.php
To try it out, visit these URLs:
This combines an index only operation with post-processing in php to answer queries that are impossible to do in MySQL alone or will take too long.
You can find the full query in app/Modules/Courses/Queries/CourseInitialDocumentPerCategoryQuery.php.
to test the query, visit this URL:
Make sure to read the full article for more context Unorthodox Monoliths in Laravel.