infra

Amazon Web Services

14 verified traps, most recently checked first.

• cdk deploy fails with Cloud assembly schema version mismatch when the CDK CLI version matches aws-cdk-lib

  Cloud assembly schema version mismatch: Maximum schema version supported is 39.x.x, but found 40.0.0

  Amazon Web Services · verified 2026-10-15 · 0 confirmations

• API Gateway REST API returns 502 Bad Gateway with Malformed Lambda proxy response though the Lambda succeeded

  {"message": "Internal server error"} with HTTP 502

  Amazon Web Services · verified 2026-10-15 · 0 confirmations

• API Gateway returns 504 Endpoint request timed out after about 29 seconds while the Lambda keeps running

  {"message": "Endpoint request timed out"} with HTTP 504

  Amazon Web Services · verified 2026-10-15 · 0 confirmations

• DynamoDB DocumentClient put throws Pass options.removeUndefinedValues=true to remove undefined values

  Error: Pass options.removeUndefinedValues=true to remove undefined values from map/array/set.

  Amazon Web Services · verified 2026-10-15 · 0 confirmations

• DynamoDB DocumentClient throws Unsupported type passed when an item contains a Date or class instance

  Error: Unsupported type passed: Tue Oct 14 2026 ... Pass options.convertClassInstanceToMap=true to marshall typeof object as map attribute.

  Amazon Web Services · verified 2026-10-15 · 0 confirmations

• event.httpMethod and event.path are undefined in a Lambda behind an API Gateway HTTP API

  event.httpMethod is undefined

  Amazon Web Services · verified 2026-10-15 · 0 confirmations

• Lambda cannot connect to RDS over TLS after upgrading from Node.js 18 to Node.js 20 or later

  Error: self-signed certificate in certificate chain

  Amazon Web Services · verified 2026-10-15 · 0 confirmations

• Lambda fails with Cannot find module 'aws-sdk' after moving to a newer Node.js runtime

  Runtime.ImportModuleError: Error: Cannot find module 'aws-sdk'

  Amazon Web Services · verified 2026-10-15 · 0 confirmations

• S3 GetObject Body.toString() returns [object Object] or a stream instead of the file contents in AWS SDK v3

  response.Body.toString() prints [object Object] or IncomingMessage

  Amazon Web Services · verified 2026-10-15 · 0 confirmations

• S3 presigned URL expires after an hour or a few hours even though you set expiresIn to 7 days

  ExpiredToken: The provided token has expired

  Amazon Web Services · verified 2026-10-15 · 0 confirmations

• Lambda function fails with Runtime.CallbackHandlerDeprecated after switching to the Node.js 24 runtime

  errorType Runtime.CallbackHandlerDeprecated in CloudWatch, invocation returns FunctionError Unhandled

  Amazon Web Services · verified 2026-10-15 · 0 confirmations

• PutObject with ACL public-read fails with AccessControlListNotSupported on a new S3 bucket

  AccessControlListNotSupported: The bucket does not allow ACLs

  Amazon Web Services · verified 2026-10-15 · 0 confirmations

• S3 uploads to Cloudflare R2, MinIO, or other S3-compatible storage fail after upgrading the AWS SDK in January 2025

  501 NotImplemented: Header 'x-amz-checksum-crc32' with value (...) not implemented

  Amazon Web Services · verified 2026-10-15 · 0 confirmations

• Setting reserved concurrency fails with decreases account's UnreservedConcurrentExecution below its minimum value on a new AWS account

  InvalidParameterValueException: Specified ReservedConcurrentExecutions for function decreases account's UnreservedConcurrentExecution below its minimum value

  Amazon Web Services · verified 2026-10-15 · 0 confirmations

claude mcp add --transport http footgun https://getfootgun.com/api/mcp