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A reusable Tabby PHP SDK should handle API communication and data exchange, while your application remains responsible for checkout orchestration, order state, and webhook-driven business actions. Keep the core independent of Laravel or any other framework, make its HTTP transport replaceable, and confirm endpoint contracts, credentials, regional hosts, and payment transitions in Tabby’s current official documentation before implementation.
Choose the integration route before designing the SDK
Tabby says merchants whose stores do not use its supported platform integrations can use its custom API solution. Its merchant guidance links to separate Quick Start, Checkout Flow, Technical Requirements, and Webhooks documentation. That direct Tabby API route is the relevant one when building a custom Tabby PHP client. Tabby’s custom API guidance
A different route exists for merchants processing through Amazon Payment Services (APS). APS documents a browser form POST to its own payment page, using parameters including command=PURCHASE, payment_option=TABBY, phone_number, and order_description. Its page describes support for KSA and UAE and SAR and AED for that route. Those parameters, markets, and processor flow are not automatically requirements for a direct Tabby API client. APS Tabby integration documentation
| Decision area | Direct Tabby custom API | APS Tabby integration |
|---|---|---|
| Merchant and processor setup | Use Tabby’s custom API path and the merchant credentials documented by Tabby. Confirm setup in Tabby’s current guides. | Use APS as the processor and follow APS onboarding and integration requirements. |
| Endpoint and authentication | Use Tabby’s API contract. The linked catalog includes checkout creation and retrieval, but exact current headers, host selection, and schema should be confirmed in official Tabby API documentation. | Submit the documented browser form to the APS payment page; do not substitute direct Tabby API settings. |
| Markets and currencies | Confirm availability and currency requirements with Tabby for the merchant account and region. | APS documents KSA and UAE support and SAR and AED for this integration route. |
| Checkout experience | Your application follows Tabby’s checkout flow and handles the resulting customer journey according to Tabby’s current guide. | The documented flow posts a browser form to the APS payment page. |
| Lifecycle and webhooks | Consult Tabby’s payment and webhook documentation for supported operations, event semantics, signatures, and retry behavior. | Implement against the APS integration and its documented responsibilities; do not assume Tabby’s direct API webhook contract applies unchanged. |
| Client ownership | Your team owns the PHP client or selects a package, including its maintenance and compatibility decisions. | Your team integrates with APS’s processor-facing flow; a direct Tabby SDK is not a substitute for APS’s integration contract. |
Separate the reusable client from checkout and order workflows
The SDK should solve API mechanics; the merchant application should decide what those API results mean for a cart, order, inventory, and customer. Tabby’s API catalog lists checkout session creation (POST /api/v2/checkout) and retrieval (GET /api/v2/checkout/{id}). It describes checkout as collecting customer data and authorizing payment. Verify the exact request and response schemas, authentication headers, regional base URL, and error behavior in the official API references before coding. Tabby API catalog
#1 Best Overall
Keep the SDK core framework-neutral
- Configure credentials, environment or base URL, and an HTTP transport through explicit constructor or configuration inputs.
- Expose API resources such as checkout, payments, and webhooks as ordinary PHP objects rather than framework facades.
- Keep request serialization and response DTOs in the client layer; leave service-container bindings, routing, logging integration, and framework-specific configuration to optional adapters.
- Return predictable response objects or typed exceptions while preserving useful HTTP status and API error details. Map exact error semantics only after checking Tabby’s current reference.
Keep application decisions in the merchant system
The application should create and persist its own order before beginning payment, associate the Tabby checkout identifier with that order, and determine what to show or do when the customer returns from checkout. A redirect or browser return is not a replacement for authoritative payment status and webhook processing. These are application architecture choices; align their details with Tabby’s documented checkout flow and event contract.
Model checkout and payment lifecycle as separate concerns
A checkout session is not the same thing as the later operational lifecycle of a payment. The available API catalog lists checkout creation and retrieval and links to payment retrieval, capture, refund, close, and webhook references. A secondary API profile also describes payment retrieval, listing, updating, capture, refund, and close operations. Treat those lists as a guide to the surfaces to investigate, not a guarantee that every merchant, payment state, or region supports every action. API Evangelist Tabby profile
Rank #2
Before exposing lifecycle methods in a public SDK, verify official endpoint paths, allowed state transitions, whether capture and refund can be partial, required amounts or identifiers, and behavior for repeated or conflicting requests. Avoid embedding assumptions such as “capture always follows authorization” as a universal contract unless Tabby’s current documentation establishes them.
Make webhook handling a first-class integration boundary
Webhooks let the server react to payment events without relying solely on the customer’s browser returning to the site. An independent API profile describes HTTPS JSON POST events such as authorize, capture, close, reject, expire, refund, and update, and says retries occur. These details are not a substitute for Tabby’s official webhook contract: confirm current event names, signature verification, retry policy, and idempotency expectations in Tabby’s webhook guidance.
- Keep webhook secrets on the server; never put Tabby secret credentials or webhook secrets in browser code or a mobile app.
- Verify each notification using Tabby’s currently documented signature mechanism before acting on it.
- Make event processing idempotent so a repeated delivery cannot apply the same business action twice.
- Persist enough event and payment context to reconcile an order when deliveries arrive late or out of sequence; use Tabby’s documented semantics rather than assuming event order.
The first two security practices are consistent with backend integration guidance in the listed package README; the exact verification procedure must come from Tabby’s current official documentation. Package README and registry listing
Use an injectable transport for testing and portability
An injectable HTTP transport is an architectural choice, not a Tabby API requirement. It lets a plain PHP application use the SDK without Laravel and lets tests substitute a fake transport to inspect requests and simulate responses. A package listing for mustafataj/tabby-php describes an injectable HTTP client and a framework-agnostic core with Laravel integration; its README says Guzzle is the default. These are maintainer claims, not independently verified code-review findings. mustafataj/tabby-php listing
Rank #4
Keep the transport interface narrow: send a request, receive a response, and expose the relevant status, headers, and body. Let the SDK own Tabby-specific authentication, serialization, and resource methods, while leaving connection setup and framework logging to the application or adapter. This separation allows a library user to replace Guzzle or supply an application-managed client without changing payment logic.
Assess existing PHP packages cautiously
The package registry’s search listing for yasser-elgammal/tabby-php reports version 1.0.0 published at 2026-10-03 08:43 UTC, PHP ^8.2, Guzzle ^7.0, and features covering checkout, payment retrieval/listing/update, capture, refund, close, webhook management, and secret verification. The registry page was not available for direct inspection, so these are listing-preview details, not an independently checked code assessment. A new version listing alone does not establish security, completeness, production readiness, or adoption. yasser-elgammal/tabby-php listing
The mustafataj/tabby-php listing advertises a framework-agnostic core, Laravel integration, checkout and payment operations, webhook management, and injectable HTTP clients. Those capabilities are also maintainer claims; inspect its current source, tests, release history, and compatibility before relying on them.
Quick Recap
Implementation checklist
- Choose direct Tabby or APS. Confirm which merchant account and processor route your store actually uses; do not mix APS form fields with direct Tabby API requests.
- Confirm the official contract. Follow Tabby’s merchant custom API page to the current Quick Start, Checkout Flow, Technical Requirements, API operations, and webhook references. Record the applicable environment, regional host, credentials, schemas, and errors.
- Define the neutral core. Specify configuration, transport interface, resource boundaries, DTOs, and exceptions without coupling them to a framework container or router.
- Keep order orchestration in the application. Persist orders and correlate them with checkout and payment identifiers; keep redirects and customer-facing states separate from server-side payment confirmation.
- Implement lifecycle operations against documented states. Add only the operations and amount semantics supported by the official contract for the relevant payment state.
- Secure and reconcile webhooks. Keep secrets server-side, verify signatures as documented, make processing idempotent, and handle retries and reconciliation.
- Evaluate packages as code, not marketing claims. Check the source, tests, dependency constraints, security practices, and release activity for the version you plan to deploy.
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