@types/aws-lambda

Parameters

• Optional error: Error | string | null

  Parameter to use to provide the error payload for a failed lambda execution. See AWS documentation for error handling. If an Error instance is passed, the error payload uses the name property as the errorType, the message property as the errorMessage, and parses the stack property string into the trace array. For other values, the errorType is typeof value, the errorMessage is String(value), and trace is an empty array.

• Optional result: TResult

  Parameter to use to provide the result payload for a successful lambda execution. Pass null or undefined for the error parameter to use this parameter.

Returns void

Parameters

• event: TEvent

   Parsed JSON data in the lambda request payload. For an AWS service triggered
   lambda this should be in the format of a type ending in Event, for example the
   S3Handler receives an event of type S3Event.
  

• context: Context

   Runtime contextual information of the current invocation, for example the caller
   identity, available memory and time remaining, legacy completion callbacks, and
   a mutable property controlling when the lambda execution completes.
  

• callback: Callback<TResult>

   NodeJS-style completion callback that the AWS Lambda runtime will provide that can
   be used to provide the lambda result payload value, or any execution error. Can
   instead return a promise that resolves with the result payload value or rejects
   with the execution error.
  

Returns void | Promise<TResult>

 A promise that resolves with the lambda result payload value, or rejects with the
 execution error. Note that if you implement your handler as an async function,
 you will automatically return a promise that will resolve with a returned value,
 or reject with a thrown value.