This typing utility provides static typing classes that can be used to ease the development by providing the IDE type hints.
Key features¶All examples shared in this documentation are available within the project repository.
We provide static typing for any context methods or properties implemented by Lambda context object.
LambdaContext¶The LambdaContext typing is typically used in the handler method for the Lambda function.
getting_started_validator_decorator_function.py
from aws_lambda_powertools.utilities.typing import LambdaContext
def handler(event: dict, context: LambdaContext) -> dict:
# Insert business logic
return event
Using LambdaContext typing makes it possible to access information and hints of all properties and methods implemented by Lambda context object.
working_with_context_function.py
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30
from time import sleep
import requests
from aws_lambda_powertools import Logger
from aws_lambda_powertools.utilities.typing import LambdaContext
logger = Logger()
def lambda_handler(event, context: LambdaContext) -> dict:
limit_execution: int = 1000 # milliseconds
# scrape website and exit before lambda timeout
while context.get_remaining_time_in_millis() > limit_execution:
comments: requests.Response = requests.get("https://jsonplaceholder.typicode.com/comments")
# add logic here and save the results of the request to an S3 bucket, for example.
logger.info(
{
"operation": "scrape_website",
"request_id": context.aws_request_id,
"remaining_time": context.get_remaining_time_in_millis(),
"comments": comments.json()[:2],
},
)
sleep(1)
return {"message": "Success"}
function_name property The name of the Lambda function function_version property The version of the function invoked_function_arn property The Amazon Resource Name (ARN) that's used to invoke the function memory_limit_in_mb property The amount of memory that's allocated for the function aws_request_id property The identifier of the invocation request log_group_name property The log group for the function log_stream_name property The log stream for the function instance identity property Information about the Amazon Cognito identity that authorized the request client_context property Client context that's provided to Lambda by the client application tenant_id property The tenant_id used to invoke the function get_remaining_time_in_millis method Returns the number of milliseconds left before the execution times out 2025-07-16
RetroSearch is an open source project built by @garambo | Open a GitHub Issue
Search and Browse the WWW like it's 1997 | Search results from DuckDuckGo
HTML:
3.2
| Encoding:
UTF-8
| Version:
0.7.4