shopify-reliability-patterns

No evidence of malicious behavior, data theft, backdoors, or obfuscated payloads is present. The main security and reliability concerns are the race condition caused by separate EXISTS and SET NX operations, early HTTP 200 response, lack of visible HMAC validation, and unvalidated request headers/body. Use an atomic Redis claim operation, check the SET NX result, authenticate Shopify requests before processing, and align response timing or queue processing with the desired retry semantics.