Response Laravel Package

Getting Started

Read the README first, and read it as a Symfony doc, not a Laravel one. Netmex Response Bundle is a Symfony bundle: it depends on the Symfony bundle/DI machinery (tagged service discovery, config/bundles.php registration, attribute-driven metadata). There is no Laravel service provider, no facade, no config publish tag in this release.

Minimal steps to evaluate it:

1. composer require netmex/response in a scratch Symfony app (or a Laravel app only if you intend to hand-wire the container).
2. Register the bundle in config/bundles.php.
3. Confirm the strategy services are discovered: php bin/console debug:container --tag=<strategy tag> (check the README for the exact tag name).
4. Write one controller action that returns a small DTO annotated with #[Response] and hit it.

First use case to try: a single read endpoint. Define a DTO with public readonly properties, annotate it with #[Response] (status, headers, and rendering strategy), return it from the controller, and verify the strategy resolver picks the renderer you expect. That exercises the whole loop: controller → DTO → attribute → strategy → HTTP response.

If you are evaluating this as a Laravel developer, the realistic first step is different: skim the DTO + attribute + strategy design and decide whether you want to (a) adopt the package with a custom Laravel service provider that registers and tags the strategies, or (b) borrow the pattern and implement it natively with Laravel's Responsable interface, which already does most of what the controller side of this bundle does.

Implementation Patterns

One DTO per endpoint, named for the response, not the model. The value of the v2 design is that the controller stops knowing about status codes and serialization. Keep the DTO a pure data carrier with readonly properties and put all transport concerns in the #[Response] attribute.

Attribute as the contract. Treat the attribute as the single place where status, headers, and strategy are declared. Resist setting headers imperatively in the controller — the moment you do, you lose the "DTO is the response definition" property that makes the bundle worth using.

Strategy per representation. Register one strategy per output format (JSON envelope, HAL, HTML, CSV, etc.) as a tagged service. The resolver then picks by attribute. This maps cleanly onto a content-negotiation layer: the attribute names a logical strategy, the resolver resolves it, the strategy owns serialization.

Layered controller flow:

Controller → builds DTO → returns DTO
Framework → reads #[Response] → asks resolver → strategy renders AbstractResponse

Keep controllers down to "fetch, map, return". If a controller is doing more than mapping a domain object into a response DTO, the DTO boundary is in the wrong place.

Extending with a custom strategy. Implement the strategy interface (see AbstractResponse and the resolver for the expected contract), register as a service with the documented tag, and let autoconfiguration pick it up. In Symfony this is zero-config if autoconfigure is on; in Laravel you must call $this->app->tag([...], 'netmex.response.strategy') manually.

Laravel integration pattern, if you go that route. Wrap the strategy registration in a package service provider, tag the strategies, bind the resolver as a singleton, and add a middleware or a Responsable-style adapter that intercepts returned DTOs and converts them before the response leaves the controller. Test the adapter path early — this is the part most likely to fight the framework.

Gotchas and Tips

• Symfony-only. This is the big one. Tagged service discovery is core to how the strategy resolver works; Laravel's container has tags but nothing scans for the bundle's attributes automatically. Budget real time for the adapter, or don't adopt.
• The release notes describe v2 as a redesign but do not enumerate breaking changes from 1.x. "Fully DTO-driven" and "stable strategy resolver" strongly imply the v1 API is gone or reshaped. Pin to 2.0.1 explicitly and pin in composer.json; do not rely on a floating constraint while the 2.x line stabilises.
• "Stable" is the release's own word. v2.0.1 is a patch on a brand-new major. Treat the resolver ordering and the attribute surface as provisional until you've read the actual source, not just the README.
• Attribute placement matters more than you'd expect. An attribute on the returned class is easy to reason about; attributes on nested DTOs are where resolution order and defaults get confusing. Test nesting explicitly if your responses are composite.
• Default status and headers are implicit. Establish what #[Response] does when you omit status — 200? 201 for created resources? Verify rather than assume, and be explicit in the attribute for anything non-200.
• Exception handling is domain-specific by design. The bundle's domain errors are not HTTP exceptions. If you already have an exception-to-response listener (very common in Laravel via Handler::render), decide which layer wins before you have two competing mappings.
• Debugging the resolver. In Symfony: debug:container --tag=<tag> to confirm strategies registered, and check autoconfiguration is enabled on your services file. A missing tag produces a "no strategy" error that looks like an attribute problem but isn't.
• AbstractResponse is the extension point, not the strategy alone. If you need consistent envelope shape (meta, pagination, errors), subclass there rather than duplicating in each strategy.
• Serialization is delegated. Whatever your serializer does with readonly DTOs, getters, and enums is what your API emits. Verify enum and date handling once, centrally, and write a test that pins it.
• Documentation gap. The release points at the README for "full usage"; the notes themselves are a summary. Read the source for the resolver and the attribute before committing — that is where the real contract lives.