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Handler Inference Failure: UserLambdaValidationException

0

An error occurred (UserLambdaValidationException) when calling the InitiateAuth operation: DefineAuthChallenge failed with error The adapter was unable to infer a handler to use for the event. This is likely related to how the Lambda function was invoked. (Are you testing locally? Make sure the request payload is valid for a supported handler.).

Topics
ServerlessCompute
Tags
AWS Lambda
Language
English
Ouf
asked 17 days ago91 views
1 Answer
0

You can check some aspect information is below:

  1. The payload. It is a valid Json.
  2. The permission. You client role and the function Resource-based policy.
  3. Function handler. The handler should be in the format file.function_name.
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CharlesZHANG
answered 10 days ago

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