Larapal Laravel Package

Getting Started

1. Install and pin the package

   composer require hypnodev/larapal
   

   Since the last release was in 2023, pin a known-good version in composer.json and verify it supports your Laravel/PHP versions before building on it.

2. Read the package surface first

   • README.md for required env vars and the intended checkout flow.
   • composer.json for Laravel auto-discovery and PHP constraints.
   • src/ for the service provider, facade/client class, config file, and any published routes.
   • config/ after publishing, if the package provides it.

3. Publish config if available

   php artisan vendor:publish --provider="Hypnodev\\Larapal\\LarapalServiceProvider"
   

   The exact provider name may differ; check composer.json or run php artisan vendor:publish and select the Larapal entry.

4. Configure PayPal credentials per environment Set sandbox credentials locally and live credentials only in production. Typical variables are:

   PAYPAL_CLIENT_ID=
   PAYPAL_SECRET=
   PAYPAL_MODE=sandbox
   

   Use the names the package actually expects. Never commit live credentials.

5. Clear cached config

   php artisan config:clear
   

6. First use case: sandbox order + capture Build the smallest possible flow first:

   • Create a PayPal order for a fixed test amount.
   • Redirect the buyer to PayPal approval.
   • Capture the order on return.
   • Log the PayPal order ID, capture ID, status, and any debug ID.

   Keep this in a disposable controller or Artisan command before integrating it into real checkout code.

Implementation Patterns

• Wrap the package behind your own payment service Do not let controllers, models, or domain services call Larapal/the package facade directly. Create an application-level interface such as PaymentGateway and put the package calls in one adapter. This makes it easier to swap the package or call PayPal’s REST API directly if maintenance becomes an issue.

• Use the standard PayPal checkout lifecycle A practical daily flow is:

  1. Create order server-side with amount, currency, intent, and return/cancel URLs.
  2. Persist your internal order/payment record with status pending.
  3. Redirect or return the PayPal approval link/client token.
  4. On return, capture the order.
  5. Verify the capture response and mark your record paid only after server-side confirmation.
  6. Fulfill via queued job/event after the local transaction commits.

• Keep controllers thin Controller responsibilities:

  • validate request
  • call your PaymentService
  • redirect/return response

  Service responsibilities:

  • build PayPal payload
  • call package
  • normalize response
  • persist payment state
  • dispatch domain events

• Store PayPal identifiers locally Persist at least:

  • internal order ID
  • PayPal order ID
  • capture ID
  • status
  • amount/currency
  • raw response or selected metadata
  • request/correlation/debug ID if available

  This is essential for support, refunds, reconciliation, and webhook matching.

• Use webhooks for durable payment state If the package supports webhooks, route them to a dedicated controller. If it does not, implement webhook handling yourself against PayPal’s REST API. Treat redirect/capture return as a UX signal only; webhook or server-side capture verification is the source of truth.

• Use separate sandbox and live configuration Keep sandbox and live credentials, base URLs, and webhook IDs isolated by environment. Avoid conditionals scattered through code; centralize this in config and a gateway factory.

• Test with sandbox accounts and fakes For unit tests, fake your own PaymentGateway interface rather than hitting PayPal. For integration tests, use sandbox buyer/seller accounts and assert your local state transitions, not just PayPal API responses.

• Log responsibly Log PayPal order IDs, capture IDs, HTTP status, error names, and debug IDs. Do not log client secrets, full card data, or unnecessary personal data.

• Integrate fulfillment through events/listeners Example pattern:

  // After verified capture
  PaymentCaptured::dispatch($payment);
  

  Then queue order fulfillment, email receipts, invoice generation, and inventory updates. This keeps payment confirmation fast and retryable.

Gotchas and Tips

• Maturity risk is real The package has modest adoption and its last release was in 2023. Treat it as a thin convenience wrapper, not a long-term platform guarantee. Budget time to inspect the source and be prepared to call PayPal’s REST API directly if the package lags API changes.

• Check the license before commercial use The repository metadata reports NOASSERTION. Confirm the actual license file and your organization’s policy before shipping.

• Verify Laravel/PHP compatibility Older packages often break on newer Laravel versions due to container bindings, facade aliases, or HTTP client changes. Run the package’s tests if available and add your own smoke test immediately after install.

• Config cache surprises After changing .env or publishing config, run:

  php artisan config:clear
  php artisan cache:clear
  

  In production, use config:cache only after confirming the package reads config at runtime correctly.

• Sandbox vs live mistakes are common Double-check mode/base URL and credentials together. A common failure is live client ID with sandbox secret or vice versa.

• Amount and currency formatting PayPal expects decimal strings with the correct currency precision. Avoid floating-point arithmetic for money. Use integer minor units internally and convert explicitly at the package boundary.

• Idempotency and duplicate captures Network retries and double form submissions can create duplicate capture attempts. Store local payment state before calling PayPal, use idempotency keys if the package/API supports them, and guard capture endpoints against re-entry.

• Do not trust the browser return alone A user returning to your return_url does not prove payment. Always capture or verify server-side and, ideally, reconcile with webhooks.

• Webhook routes and CSRF PayPal webhooks are server-to-server POSTs. Exclude the webhook route from CSRF protection and verify the webhook signature/certificate according to PayPal’s current requirements. If the package does not verify webhooks, implement verification yourself.

• Handle PayPal error shapes PayPal errors often include name, message, details, and debug/correlation IDs. Normalize these into your own exception types so controllers and jobs can respond consistently.

• Set HTTP timeouts and retries deliberately Payment API calls should have bounded timeouts. Retry only safe/idempotent operations. Do not retry a capture blindly without checking the previous result.

• Inspect extension points before forking Look for configurable HTTP clients, events, custom base URLs, or bindings in the service provider. If none exist, keep your adapter small and isolate any package-specific code to one namespace.

• Debugging checklist

  • Confirm service provider/facade discovery: php artisan about or composer dump-autoload.
  • Confirm config values are visible: php artisan tinker and inspect the package config.
  • Check storage/logs/laravel.log for HTTP errors.
  • Use PayPal sandbox dashboard and debug IDs to trace failed API calls.
  • Run php artisan route:list to confirm return/cancel/webhook routes.
  • Test with the smallest possible order amount and a sandbox buyer account.

• Prefer a clean fallback path Because the package is small and aging, keep the PayPal integration behind your own interface. If the package becomes incompatible, replacing its adapter with direct PayPal REST calls should be a contained change rather than a rewrite.