AWS Lambda Adapter: Expose aws_request_id and log_stream_name in SlackRequestHandler context

I would like to add two parameters from the AWS Lambda context into the BoltRequest context in AWS :

• aws_request_id
• log_stream_name

These parameters are useful for manual logging and are accessible directly from the context variable within lambda_handler(event, context) function when not in Bolt framework. I would like to also make them available in Bolt framework. Proposed code mirrors how bolt_req.context is currently populated in AWS Lambda adapter handler:

$ git diff
diff --git a/slack_bolt/adapter/aws_lambda/handler.py b/slack_bolt/adapter/aws_lambda/handler.py
index 1ba44dd..ba3e183 100644
--- a/slack_bolt/adapter/aws_lambda/handler.py
+++ b/slack_bolt/adapter/aws_lambda/handler.py
@@ -55,7 +55,11 @@ class SlackRequestHandler:
             bolt_req = to_bolt_request(event)
             # https://docs.aws.amazon.com/lambda/latest/dg/python-context.html
             aws_lambda_function_name = context.function_name
+            aws_request_id = context.aws_request_id
+            log_stream_name = context.log_stream_name
             bolt_req.context["aws_lambda_function_name"] = aws_lambda_function_name
+            bolt_req.context["aws_request_id"] = aws_request_id
+            bolt_req.context["log_stream_name"] = log_stream_name
             bolt_req.context["aws_lambda_invoked_function_arn"] = context.invoked_function_arn
             bolt_req.context["lambda_request"] = event
             bolt_resp = self.app.dispatch(bolt_req)

I am open to implementing this feature myself if there is desire to add it to bolt-python.

Category (place an x in each of the [ ])

• slack_bolt.App and/or its core components
• slack_bolt.async_app.AsyncApp and/or its core components
• Adapters in slack_bolt.adapter
• Others

Requirements

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Start in slack_bolt/adapter/aws_lambda/handler.py, where SlackRequestHandler maps the AWS Lambda context into bolt_req.context. Verify the existing context population and expose aws_request_id and log_stream_name alongside the other Lambda values; done means both keys are available during Bolt request handling.