lambda_gateway/lambda_context.py
import uuid
from contextlib import contextmanager
from datetime import datetime
@contextmanager
def start(timeout=None):
"""
Yield mock Lambda context object.
"""
yield Context(timeout)
class Context:
"""
Mock Lambda context object.
:param int timeout: Lambda timeout in seconds
"""
def __init__(self, timeout=None):
self._start = datetime.utcnow()
self._timeout = timeout or 30
@property
def function_name(self):
return "lambda-gateway"
@property
def function_version(self):
return "$LATEST"
@property
def invoked_function_arn(self):
account_id = "123456789012"
region = "us-east-1"
function_name = self.function_name
return f"arn:aws:lambda:{region}:{account_id}:function:{function_name}"
@property
def memory_limit_in_mb(self):
return 128
@property
def aws_request_id(self):
return str(uuid.uuid1())
@property
def log_group_name(self):
return "/aws/lambda/lambda-gateway"
@property
def log_stream_name(self):
return str(uuid.uuid1())
def get_remaining_time_in_millis(self):
"""
Get remaining TTL for Lambda context.
"""
delta = datetime.utcnow() - self._start
remaining_time_in_s = self._timeout - delta.total_seconds()
if remaining_time_in_s < 0:
return 0
return remaining_time_in_s * 1000