Lumen is a trimming PHP micro-framework created by Taylor Otwell, the inventor of Laravel, to provide microservices and APIs that can handle large and diverse Laravel applications.
Microservices are lightly connected, tiny components that support and enhance the main programme. You can have a scenario where numerous Lumen apps assist in a Laravel application in a microservice architecture.
Lumen is a “micro-framework,” which means it’s a smaller, faster, and more lean version of the full-stack web-application framework. Lumen is based on Laravel, hence there are many components in Lumen that are similar to those in Laravel