When Lambda runs your function, it passes a context object to the handler. This object provides methods and properties that provide information about the invocation, function, and execution environment.
Context methods
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get_remaining_time_in_millis– Returns the number of milliseconds left before the execution times out.
Context properties
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function_name– The name of the Lambda function. -
function_version– The version of the function. -
invoked_function_arn– The Amazon Resource Name (ARN) that's used to invoke the function. Indicates if the invoker specified a version number or alias. -
memory_limit_in_mb– The amount of memory that's allocated for the function. -
aws_request_id– The identifier of the invocation request. -
log_group_name– The log group for the function. -
log_stream_name– The log stream for the function instance. -
deadline_ms– The date that the execution times out, in Unix time milliseconds. -
identity– (mobile apps) Information about the Amazon Cognito identity that authorized the request. -
client_context– (mobile apps) Client context that's provided to Lambda by the client application.
