Your AWS Lambda functions should not require setting up a complex environment or large amount of dependencies to create and initialize the component under test. Generally speaking, you should write a handler t
Functions using Manual mode don't receive runtime updates. Lambda publishes new runtime versions in a gradual, rolling fashion across AWS Regions. If your functions are set to Auto or Function update modes, it's possible that functions deployed at the same time to different Regions, or at ...
AWS Lambda's main resources are Lambda functions, which contain a granular piece of code that performs a specific task. Functions can initiate using multiple mechanisms, such as the AWS SDK, HTTP endpoints or configurable events from other AWS services. This delivers flexibility to make functions ...
AWS Lambda is, at its core, built on an event-driven architecture. Functions are triggered by specific events or state changes within the AWS ecosystem or from external sources. This model introduces unique security implications, as each event source and function becomes a potential attack vector....
A CloudFormation template has multiple sections that are used to define the stack, such as description, parameters, mappings, resources and outputs. The most relevant one is the resources section, which is where you define an AWS component. In the case of Lambda functions, it is done...
Typically, Lambda functions are deployed using a .zip file with all the code dependencies as well as Lambda Layers. However, there’s also the option to deploy the code for a Lambda function using a Lambda Container Image, which is essentially a Docker image stored in the AWS Elastic Contain...
Whether you are new or an expert in the Serverless world, AWS Lambda retry mechanism can cause a headache. A distributed system usually has different nodes triggered by asynchronous actions. Each node must be designed as asingle black box unit. When you design a distributed system, you have ...
Well, we do know for sure that Lambda powers your code on some form of container technology which explains how AWS is able to get it to spin up so quickly as compared to running your code on standard EC2 instances. These containers are spun up on underlying EC2 instances that are all ...
Managing database connections with AWS Lambda functions can become an issue when your application reaches scale. Learn strategies for managing your RDS connections in a serverless application.
Cold starts inAWS Lambdagot you down? You've come to the right place. In this post, I'll briefly cover what cold starts are, and then show you some ways to reduce your cold start times. Read on! First: what is a cold start? ❄️ ...