Laravel Soa Laravel Package

Getting Started

Install it like any Composer dependency:

composer require northwestern-sysdev/laravel-soa

Laravel will auto-discover the package's service provider (standard for modern packages). Publish the configuration so you can see what services are exposed and what credentials/endpoints each one needs:

php artisan vendor:publish --provider="NITAdministrativeSystems\LaravelSOA\ServiceProvider"

Then populate the matching keys in .env for each SOA service you actually plan to use (credentials, base URLs, environment-specific hostnames). Most of these services are Northwestern-internal, so if you are outside the NIT network you will get connection failures rather than useful errors — verify network access before debugging code.

Where to look first:

1. The published config/soa.php — it is the map of every service the package binds.
2. The package's src/ directory — the service provider shows the exact container keys and interface/implementation pairings.
3. The README — usually documents the intended usage for each service.

First use case: the most common need is "look up a person or account in a Northwestern directory/identity service." Resolve the relevant contract out of the container rather than instantiating anything yourself:

use NITAdministrativeSystems\LaravelSOA\Contracts\Directory;

public function show(Directory $directory, string $netid)
{
    return $directory->lookup($netid);
}

If Directory isn't the exact contract name in your version, check the provider — Laravel's container will make() whatever interface is bound there.

Implementation Patterns

Constructor injection over facades. The package's whole point is container bindings, so lean on that. Type-hint the interface in controllers, jobs, commands, and service classes; let Laravel resolve it. This also means you can swap in fakes in tests without touching production code.

class NetIdController extends Controller
{
    public function __construct(private Directory $directory) {}

    public function show(string $netid)
    {
        return view('person', ['person' => $this->directory->lookup($netid)]);
    }
}

Wrap calls in your own thin repository/service layer. Nothing in the package knows about your domain. Add a PersonRepository that depends on the SOA contract and translates raw SOA responses into your models/DTOs. When the package changes (or you replace it), only one class changes.

Configuration-per-environment. Keep each service disabled/enabled per environment in config/soa.php or via env flags. In local development you rarely have network access to Northwestern SOA endpoints; gate calls behind config, and let your repository return cached or stubbed data locally.

Isolate outbound calls in queued jobs. SOA services are remote and can be slow or flaky. If a call isn't needed synchronously for the response, dispatch a job:

LookupPersonJob::dispatch($netid);

Add timeouts and retries in the job (public $tries, public $timeout) rather than relying on the underlying HTTP client defaults.

Testing: bind fakes. Because everything resolves through the container, you can do:

$this->app->bind(Directory::class, fn () => new FakeDirectory());

or use instance() in a test. Prefer fakes that implement the same contract so type checks still pass.

Facade usage is optional. If the package ships facades (check src/Facades or the provider's aliases), they're convenient in tinker and one-off scripts but should be avoided in long-lived code — constructor injection is easier to test and refactor.

Compose services. Many SOA calls need multiple round-trips (e.g., resolve a NetID to a directory entry, then fetch a photo or group membership). Build small helper methods that compose the injected contracts rather than one god-object.

Gotchas and Tips

Treat this as an internal package. Three stars and zero dependents is accurate — it exists for Northwestern NIT applications, not public consumption. Consequences:

• API/namespace churn between versions is real; pin a version in composer.json and read the changelog before upgrading.
• Documentation assumes you're inside the Northwestern network and understand the SOA landscape.
• Issue response time is not guaranteed; be prepared to read the source.

Auto-discovery can fail. If the provider isn't registered automatically (older Laravel, or a dont-discover entry in your composer.json), add it manually to config/app.php:

'providers' => [
    NITAdministrativeSystems\LaravelSOA\ServiceProvider::class,
],

Credentials and secrets. Never commit the published config file with real credentials. Keep secrets in .env (or a secret manager), and check the package uses env() only in the config file — not in src/. If it reads env vars at runtime, you can't config-cache safely.

Config caching surprise. After changing SOA credentials locally, run:

php artisan config:clear

config:cache will freeze your endpoints and credentials; a stale cache is the #1 cause of "why is it hitting the wrong host" confusion.

Debugging container resolution. When a call fails with "Target [X] is not instantiable," the interface isn't bound — usually because you're using a Laravel version whose auto-discovery didn't pick up the provider, or you disabled a service via config. Inspect bindings with:

app()->make(Directory::class); // will throw with the exact interface

and dump the config: php artisan tinker → config('soa').

Network errors look like code errors. Connection timeouts against internal hostnames frequently surface as generic ConnectionExceptions from Guzzle. Before writing retry logic, confirm you can reach the endpoint outside PHP (curl, nc -zv).

Rebind interfaces for customization or testing. If you need to subclass a client (add logging, add a cache layer, override a method), rebind in a dedicated service provider registered after the package's:

public function register()
{
    $this->app->extend(Directory::class, fn ($client) => new CachingDirectory($client));
}

extend() is safer than bind() here because it preserves the package's configured client and wraps it.

Handle failures at the boundary. SOA outages happen. Return null/empty DTOs from your repository, log the original exception, and let the UI degrade gracefully rather than 500-ing the whole page. Don't let raw HTTP exceptions bubble into blade templates.

Look for caching helpers before writing your own. Many SOA wrappers already cache directory/group lookups internally or expose a ->cache() toggle. Check the contract before layering your own Redis cache on top — double caching causes confusing staleness bugs.

Watch pagination and batch limits. Directory/bulk services typically cap result counts per request. Read the source's constants or docblocks; ignoring a max-page-size silently truncates results.