shopify

Webhook signature validation verifies that incoming webhooks originate from Shopify by using HMAC-SHA256 to compare the request's X-Shopify-Hmac-SHA256 header against a computed hash of the request body and your API secret key. This prevents attackers from forging webhook requests and ensures authenticity before processing sensitive events.

Shopify GraphQL and REST APIs have different rate-limiting models. GraphQL uses a points-based system; REST uses request-per-minute buckets. Implement exponential backoff with jitter, respect the Retry-After header, and choose GraphQL for bulk operations and REST for simpler queries to optimize your rate-limit budget within your app's scope.

Mock GraphQL queries using fixtures and test data instead of live API calls. This approach validates query structure and response handling without consuming rate-limit quota or depending on network connectivity, making tests faster and more reliable during development and CI/CD.

Yes. Shopify scopes control what data your app can access and vary between API versions. Enforce scope checks within your integration, document required scopes for each feature, and validate that your app's declared scopes match the API endpoints and resources you're accessing to prevent authorization failures.

Webhook validation adds latency to request processing. In high-traffic bursts, signature verification can become a bottleneck if not optimized. Use asynchronous processing, queue webhooks for later validation, and cache verification results to handle real-world traffic spikes without dropping events or exceeding timeout windows.

Shopify enforces specific conventions: metafields require namespace prefixes and use standardized types; currency values must match shop settings and use ISO 4217 codes. Adhering to these conventions ensures compatibility across API versions, prevents data corruption, and simplifies multi-currency and custom metadata management.