网关504 OK”，“错误”：{“消息”：“端点请求超时”} REST api时
Status Code: 504 Gateway Timeout
content-length: 41
content-type: application/json
date: Sat, 31 Oct 2020 13:51:16 GMT
via: 1.1 ef10af6bed26700243bef9cc9e23a2.cloudfront.net (CloudFront)
x-amz-apigw-id: VR3EvGMTcwFY6A=
x-amz-cf-id: uyASHLfelo6mNs4m4RmAWQ1ScEGvzR8S3UreFKzeipCWJRS3voPg==
x-amz-cf-pop: FJR50-C1
x-amzn-errortype: InternalServerErrorException
x-amzn-requestid: 0d4c0d9e-1a35-4915-b6a7-33ae8c739724
x-cache: Error from cloudfront
x-firefox-spdy: h2