Prospect Laravel Package

Getting Started

versionable/prospect is a legacy, pre-PSR HTTP client from the PHP 5.3 era. Before writing a single line of integration code, verify it still installs on your stack — most modern Laravel apps (PHP 8.1+) will not be able to load it.

1. Check compatibility first. Run composer require versionable/prospect in a throwaway Laravel skeleton. If Composer resolves it at all, inspect vendor/versionable/prospect/src and look for the main client class (typically something like Prospect\Client, Prospect\Request, or an Http façade). There is no Laravel service provider, no facade, and no config file — everything is instantiated manually.
2. Confirm the public API. Open the class file and look for the request methods (get, post, send, execute, call). Old HTTP clients usually expose something like:

   $client = new Prospect\Client();
   $response = $client->get('https://api.example.com/users');
   echo $response->getBody();
   

   Confirm the exact method names and the response object shape (does it return a Response object, a raw string, or an array?) before building on top of it.
3. First use case: a single read-only GET inside a controller or artisan command. Keep it isolated — put it in a single method so it is trivial to swap out later:

   public function index()
   {
       $client = new \Prospect\Client();
       $response = $client->get('https://httpbin.org/get');
       return response($response->getBody())->header('Content-Type', 'application/json');
   }
   

4. Sanity-check TLS. Most clients from this era default to old SSL/TLS behaviour. Test against an https:// endpoint early — if the handshake fails, you'll know before you've built anything around it.

Implementation Patterns

Given the package's age and lack of Laravel integration, the right pattern is thin wrapper + dependency injection, so that the client is invisible to the rest of your app and can be replaced by Guzzle in one file if needed.

1. Wrap it in a dedicated client/service class

namespace App\Services;

use Prospect\Client; // verify actual FQCN

class LegacyApiClient
{
    private $client;

    public function __construct()
    {
        $this->client = new Client();
    }

    public function fetchUsers(): array
    {
        $response = $this->client->get(config('services.legacy.url') . '/users');
        return json_decode($response->getBody(), true) ?? [];
    }
}

2. Bind it into the container (since the package won't do it for you)

// AppServiceProvider::register()
$this->app->singleton(LegacyApiClient::class, fn () => new LegacyApiClient());

3. Inject it like any other service

public function __construct(private LegacyApiClient $api) {}

public function index()
{
    return UserResource::collection($this->api->fetchUsers());
}

4. Queued jobs for anything not on the request's critical path. The client is synchronous and blocking. Wrap calls in a job so slow upstream responses don't stall requests:

class SyncUsers implements ShouldQueue
{
    public function handle(LegacyApiClient $api): void
    {
        foreach ($api->fetchUsers() as $row) {
            User::updateOrCreate(['external_id' => $row['id']], $row);
        }
    }
}

5. Testing. Because the client is constructed internally in the sample above, extract an interface (UserProviderContract) and bind a fake in tests. Alternatively, inject the raw Client via the container so you can swap it:

$this->app->instance(\Prospect\Client::class, $fakeClient);

Confirm the internal client makes any network calls lazily (some 5.3-era clients fire requests on construction) — if it does, the fake must still avoid touching the network.

6. Configuration via config/services.php. No package config exists; put base URLs, timeouts, and credentials there and pass them into the wrapper. Never hardcode them.

7. Rate limiting. Wrap outbound calls in RateLimiter::attempt() in Laravel so a burst from a queue worker doesn't hammer the upstream API — the package has no built-in retry/backoff.

Gotchas and Tips

• PHP version is the biggest risk. "PHP 5.3" in the description is a strong signal. PHP 5.3 syntax (no ??, no strict types, often no namespaces or missing use statements) will not parse on PHP 8. Even if it parses, deprecated functions (each(), create_function, mysql_*) will fatal. Test in a staging container before adopting.
• No Composer autoloading guarantees. Very old packages sometimes ship without a proper psr-4/psr-0 autoload block, or use a vendor/autoload.php-style include. If composer dump-autoload -o reports class-not-found, you'll have to add a classmap entry in your root composer.json.
• No PSR-7/PSR-18. You cannot swap it for Guzzle behind an interface that Laravel or third-party packages expect. Build your own narrow contract (UserProviderContract, HttpContract) around it.
• No Laravel service provider, facade, or config publishing. Everything is manual. Register bindings yourself in AppServiceProvider.
• TLS/CA bundle issues. Old clients often don't ship cacert.pem. You may hit SSL certificate problem: unable to get local issuer certificate. Workarounds: point to openssl.cafile in php.ini, or set curl.cainfo. Do not disable verification (CURLOPT_SSL_VERIFYPEER => false) in anything close to production.
• Blocking and no async. Combined with a queue worker, one slow upstream call stalls the whole worker. Set an explicit timeout if the client exposes one; otherwise wrap calls in Spatie\Async or move to Guzzle's Pool/promises.
• Silent failures. Legacy clients sometimes return null or a string on failure rather than throwing. Check the response object's status code and body before decoding, and throw yourself — otherwise failures surface as confusing downstream errors (e.g. json_decode(null) returning null).
• No retry, no backoff, no redirect handling you can trust. Implement retries with Laravel\Horizon's or Spatie\Backoff around the wrapper, not inside the client.
• Debugging: the library almost certainly doesn't log. Add Log::debug() around the call boundary with URL, status, and elapsed duration — Log::withContext in a middleware or job is the only observability you'll get.
• Debugging at the network level: run the failing request inside Http::withOptions([...]) (Guzzle) once, side by side, to prove whether the failure is TLS, DNS, headers, or the upstream itself. It isolates whether the client is at fault.
• Extension points are essentially nil. There's no middleware, no event hooks, no mock adapter. If you need any of those, you need a different HTTP client.
• Security: an unmaintained package has no vulnerability disclosure path. Run composer audit and pin the exact version; treat it as a liability, not an asset. Do not use it for anything carrying secrets where Guzzle is available.
• Migration advice: the honest recommendation is to replace it. Guzzle is already a transitive dependency of almost every Laravel app (via laravel/framework), is PSR-18 compliant, and is supported. Wrap it in the same LegacyApiClient class and no other file changes.