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General Guidance

This section contains guidance for functionality that applies across multiple B2C Commerce APIs (SCAPI). Use it as a starting point to find the cross-cutting topics most relevant to your implementation.

Authentication & Authorization

Authorization Overview — How SCAPI client permissions work.
Authorization for Shopper APIs — Set up SLAS clients for storefront access.
Authorization for Admin APIs — Set up Account Manager clients for backend access.
Authorization Scopes Catalog — Complete list of available scopes.
SLAS Overview — Grant types, token types, and advanced SLAS topics.

Extensibility

Customization with Hooks — Alter and extend Shopper API behavior using the Script API.
Hook Method Details — Available hooks with method signatures.
Custom APIs — Build custom REST endpoints under the SCAPI framework.

Caching & Performance

Server-Side Web-Tier Caching — Which APIs are cached, TTLs, and personalization settings.
Shopper API Performance and Best Practices — Optimize response times for hooks, Custom APIs, and catalog size.

Personalization

Shopper Context — Set context information to retrieve personalized promotions, payment methods, and shipping methods.
Shopper Context Best Practices — Guidelines for using Shopper Context effectively.

Error Handling & Troubleshooting

HTTP Status Codes and Errors — Common error messages, error response format, and best practices.
Timeouts and Limits — Default timeout values and request/response size constraints.
Load Shedding and Rate Limiting — Rate limits per API family.
Troubleshoot Request Timeouts — Diagnose and resolve timeout issues.
View SCAPI Logs and Track Requests — Use correlation IDs and Log Center.

Working with Baskets & Orders

Build Baskets and Place Orders — End-to-end checkout flow with code examples.
Hybrid Storefront Best Practices for Working with Baskets — Best practices for hybrid SFRA/headless deployments.
Coupons, Gift Certificates, and Bonus Products — Promotional features in basket flows.

Request Formatting

Base URL and Request Formation — How to construct well-formed API requests.
Property Selection — Select specific attributes of the response to return.
URL Encoding of Special Characters — Double-encode special characters in resource identifiers.
Custom Properties — Read and write custom c_ properties on business objects.

Security & CORS

Security — Authentication, authorization, and the shared responsibility model.
CORS in SCAPI — Configure cross-origin resource sharing for browser-based access.