{"id":"apigw-websocket-no-binary-frames","text":"API Gateway WebSocket APIs do not support binary media types — only JSON/text messages are supported (status code 1003 returned for binary frames).","truth_value":"IN","source":"entries/2026/03/11/apigateway-latest-developerguide-apigateway-websocket-api-overviewhtml.md","source_url":"","source_hash":"af38591465566714","justifications":[],"dependents":[],"metadata":{},"explanation":{"steps":[{"node":"apigw-websocket-no-binary-frames","truth_value":"IN","reason":"premise"}]}}