Oct 7🍰 Build & Deploy Reusable Lambda Layers Using AWS CDKWhat is a lambda layer? A Lambda layer is a ZIP archive that contains additional code and data that can be referenced by AWS Lambda functions. Lambda layers allow you to pull in shared code, assets, and dependencies to be used across multiple functions, without needing to include it in every Lambda deployment package. AWS…AWS Lambda5 min readAWS Lambda5 min read
Oct 2🚀 Getting started with AWS CDK + TypescriptWhat is CDK? Cloud Development Kit aka CDK is an open-source software development framework that helps developers define cloud infrastructure in code aka Infrastructure as code (IaC) and provision it through AWS CloudFormation. It allows you to define AWS resources using familiar programming languages such as TypeScript, Python, Java, and more, instead of…Aws Cdk6 min readAws Cdk6 min read
Jun 29Deploy chartjs-node-canvas to AWS lambda using docker container👋 Hello! I am working on a project where I need to send some line and bar charts on a weekly basis via emails and slack.Docker4 min readDocker4 min read
Oct 28, 2022XIAO BLE Sense Firmware Update (UF2)When you are dealing with microcontrollers, you often come across with the use-case of updating device software (aka firmware). I was working on a project using XIAO BLE Sense and I needed to distribute the firmware. My target users were not technical and were not familiar with Arduino IDE to…Arduino3 min readArduino3 min read
Mar 30, 2020AWS Quantum Ledger Database (QLDB) With Node.js and IonicWhat is QLDB? Let me steal the definition from Amazon website as that’s the best definition I found — “Amazon QLDB is a fully managed ledger database that provides a transparent, immutable, and cryptographically verifiable transaction log owned by a central trusted authority”. This means QLDB is centralized ledger database where data is…AWS3 min readAWS3 min read
May 24, 2019Build Resilient Microservices Using Spring Retry and Circuit Breaker Pattern“Everything fails all the time” — Werner Vogels This is sad but true, everything fails specially in Microservice architecture with many external dependencies. Modern applications have tens of microservices which communicate with each other over REST. Anytime any microservice may go down causing entire operation to fail. At a broad…Microservices4 min readMicroservices4 min read
May 16, 2019Deploy Microsoft Bot framework to AWS LambdaI got very excited when I first saw Microsoft Bot Framework (https://dev.botframework.com). Microsoft has done a great job! You can deploy same bot to multiple channels such as MS Team, Slack, Facebook. But all the documents/tutorial I read recommend to deploy bot backend code to Azure. I have been working…AWS3 min readAWS3 min read
Jan 28, 2019Let Raspberry Pi’s talk using AWS IoT ShadowDuring Christmas break I was planning to implement a smart door bell. A Raspberry Pi in the porch with a camera attached to it. Pi will capture the image of the person, recognize the face and if face matches, it will signal another Pi inside the house which will unlock…Raspberry Pi2 min readRaspberry Pi2 min read
Nov 28, 2018AWS API Gateway Multi-Stage Deployment with Lambda AliasThe Cloud Computing World is moving to Serverless architecture for obvious reasons. There is no need to keep your servers running and paying for 24X7 where you application may be serving your customers 50% of a day. You should pay only for the time your application actually processing your customer’s…AWS Lambda4 min readAWS Lambda4 min read
