Add AWS Lambda Layers to a Lambda Function using AWS SAM
Learn how to attach a Lambda Layer to a Lambda Function using AWS SAM (Serverless Application Model) and AWS console.
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AWS
Create AWS Lambda Layers Using AWS SAM
Learn how to create a Lambda Layer using AWS SAM (Serverless Application Model) and CloudFormation in YAML to reuse code, write zero redundant code and reduce Lambda deployment size.
Upgrade AWS SAM CLI using Homebrew
Learn how to upgrade your AWS SAM CLI using Homebrew.
AWS DynamoDB Boto3 - No module named ‘boto3.dynamodb.conditions.Key’
Learn how to handle ModuleNotFoundError: No module named 'boto3.dynamodb.conditions.Key'; error.
Convert Amazon Polly Audio(Speech Synthesis) Output From PCM to WAV
Check out how to convert Amazon Polly Audio from PCM to WAV format in Python.
AWS Elastic Beanstalk Worker Auto Scaling By Queue Size
Learn how to configure AWS Elastic Beanstalk worker instances to auto scale based on the number of messages in the associated worker queue (queue size / queue depth).
Download From Amazon Simple Storage Service(S3) Private Buckets Directly Using Presigned URLs
Learn how to enable downloading from Amazon S3 private buckets directly.
Download From Amazon Simple Storage Service(S3) Buckets using JavaScript
Learn how to download from Amazon S3 buckets in your web application(frontend) using JavaScript.
Handle Amazon S3 Download No Access-Control-Allow-Origin Header(CORS) Error
Learn how to handle Amazon S3 CORS policy: No ‘Access-Control-Allow-Origin’ header is present on the requested resource error.
Handling AWS Lambda Payload Limit
Learn how to work around AWS Lambda invocation(request and response) payload size limit.
Steps to update AWS Cloud9 IDE SAM CLI to Latest Version
Learn how to update AWS Cloud9 IDE(Integrated development environment) AWS SAM(Serverless Application Model) CLI(command-line interface) version.
AWS Amplify API Requests With Retries
Learn how to send API requests using AWS Amplify API with retries. This function pattern also works for retrying a promise when the promise rejects.
AWS Amplify API, Blob Response Type(Binary Data) and Error Handling
Learn how to use AWS Amplify API with Axios to query endpoints that return Blob response type but JSON error response type.
AWS SAM Configuration for API Gateway Binary Response / Payloads
Learn how to configure AWS SAM to enable Binary Response such as audio/wav, application/zip, image/jpeg, image/png etc from AWS Api Gateway with Lambda proxy integration.
Install AWS SAM CLI and Execute AWS Lambda functions locally using SAM CLI
Learn how to install AWS SAM CLI and invoke AWS Lambda functions on your local machine using AWS SAM CLI.
Continuous Integration and Continuous Deployment(CI/CD) using AWS CodePipeline and AWS CodeStar
Learn how to create development and production pipelines for your web service projects using AWS CodePipeline and AWS CodeStar. Having a development and a production pipeline can streamline development and production workflow.
Deploy AWS API to Multiple Stages When AWS SAM Replaces Previous Stages
Learn how to create multiple API Gateway deployment stages even though AWS SAM replaces previous stages in subsequent deployments.
AWS Lambda And Multi Threading Using Python
An example of using Python multi-threading in AWS Lambda.
AWS API Gateway Invoke Lambda Function Permission
Learn how to provide API Gateway permission to invoke Lambda function(s).
How to deal with AWS API Gateway Final Policy Size Bigger Than Limit(20480) error?
Learn how to deal with AWS API Gateway “Final policy size bigger than limit(20480)” error.
How to secure AWS Api Gateway Requests with Signature Version 4 using AWS Amplify?
Learn how to use AWS Amplify to sign your API Gateway requests with Signature Version 4.
AWS Api Gateway Authorization(Access Control) with IAM, Cognito or Lambda Authorizer
Learn how to set up control access to your AWS API Gateway endpoints with IAM permissions, Amazon Cognito User Pools or Lambda Authorizer (previously named Custom Authorizer).
How to pause or stop AWS Elastic Beanstalk environment from running?
There is no straightforward way to pause an Elastic Beanstalk(EB) environment on AWS console. You can’t terminate it as it will be deleted. Fret not, you can stop your Elastic Beanstalk environment from running when it is not needed so that you only pay when you use it.
How to increment an atomic counter on Amazon DynamoDB?
If you use Amazon DynamoDB to keep track of usage count, you may encounter a situation where you need to increase a user’s usage count when the user is actively using your service, how do you make sure you calculate the total usage correctly? How do you make sure you don’t count more or less?
How to set Amazon S3 files download names?
When I was downloading via an Amazon S3 url, I realized that it had the exact name as how I kept it in the storage. It would be more informative and convenient to users if the downloaded that have meaningful names instead of randomly generated IDs.
AWS DynamoDB Pay-Per-Request Billing Mode And On-Demand Read / Write Capacity Mode Configuration
Learn how to configure AWS DynamoDB(DDB) to use pay-per-request billing mode and on-demand read/write capacity mode.
Verify Time-To-Live(TTL) Configuration For Amazon DynamoDB Table
Check out different ways to verify if an Amazon DynamoDB(DDB) table time-to-live(TTL) is configured correctly.
How To Set Time-To-Live(TTL) Attribute For Amazon DynamoDB entries?
Learn how to make Amazon DynamoDB(DDB) tables clean up itself.
Create Secondary Indexes For AWS DynamoDB to Prevent Scanning
Learn how to create DynamoDB(DDB) Global and Local Secondary Indexes(GSI and LSI).
AWS DynamoDB Global And Local Secondary Indexes Comparison
Learn about AWS DynamoDB(DDB) indexes and the difference between its global and local secondary indexes.
Upload Zip Files to AWS S3 using Boto3 Python library
Learn how to upload a zip file to AWS S3 using Boto3 Python library.
Authorizing AWS CloudFormation Role to perform iam:CreateRole on Resources
Learn how to enable CloudFormation to create roles for your AWS resources.
Web
Angular 8 Lazy Loading With Angular CLI
Learn how to create a lazy loading path with Angular 8 apps using Angular CLI.
HTML Inline Frame - Iframe
Learn about HTML Inline Frame element (<iframe>) through some examples.
Browser Intertab Communication via Broadcast Channel API
Learn how to manage communication across browser windows and tabs for your websites and web applications.
Angular Service and How to Inject A Service in Angular
Learn how to inject an Angular services.
Angular Service Factory Providers And Abstract Classes For More Organized Code Structure
Learn how to use Angular service factory providers and abstract classes to make your Angular project code more organized.
What Is A Service In Angular
Learn about Angular services and how to write a service.
Angular Tree-Shaking
Learn about Angular tree-shaking.
How to remove console log from your JavaScript files programmatically?
Learn how to remove JavaScript console methods such as console log programmatically from your JavaScript files.
Service Worker Cache Busting
Learn how to publish the latest version of your progressive web app.
How to observe the impact of a network request on a website?
You can block a network request on Google Chrome DevTools to see its effect on your web application or website.
How to listen for upload progress in a service worker scope - progressive web app(PWA)?
Since XMLHttpRequest(XHR) is not usable in a service worker scope and fetch API hasn’t supported upload progress as of 2019 March, how to listen for upload progress when we use a service worker?
How to listen for upload progress when using AJAX - XMLHttpRequest(XHR)?
Learn how to listen for upload progress when you use AJAX - XMLHttpRequest(XHR).
How to force update a service worker on Chrome, Firefox and Safari?
Learn how to force update or activate your updated service worker when it is in waiting state.
Chrome Remote Debugging Websites on Android
Web browsers and mobile browsers don’t behave the same and sometimes don’t support the same functionalities. It is important for us to test our app on mobile browsers too especially the browsers that most of our users are using.
How to access an Angular App running on localhost from mobile devices?
When you develop your Angular app on localhost, you might wonder how it looks like on a real mobile device(phone, tablet, etc.), whether it is responsive to different screen sizes. To do that, you can load your site running on localhost on your mobile devices when they are connected to the same local area network(LAN) such as connecting to the same WiFi.
Add Read or Scroll Progress Bar To A Website To Indicate Read Progress
Learn how to add a scroll progress bar(read progress bar) to your web page to inform readers how much they have read from your article or to indicate how much page has been scrolled.
Add Scroll-To-Top Button to a Website
When a page has long content, it would be good to have anchors at sections’ titles and also a scroll-to-top that help users navigate and scroll.
How to highlight code on a Jekyll site - Syntax Highlighting
To have code snippets highlighted so that they are more reader-friendly, we have to wrap our code using the following syntax.
How to turn on Chrome Devtools for Chrome Extension?
Learn how to turn on Chrome DevTools to debug a chrome extension.
How to inspect request and response headers on Safari?
Learn how to inspect request and response headers on Safari.
How-to
Chrome vs Firefox vs Safari Reader View
Learn how to turn on reader view on Google Chrome, Mozilla Firefox and Safari browsers.
Screen Recording on Macbook
Sometimes, it is hard to convey your ideas via text. With videos, you would be able to express your thoughts and ideas more vividly. To show what is going on in your screen for educational purpose, debugging or other purposes, you can record your Macbook screen.
How to connect multiple phones to Amazon Echo & Alexa?
This is to clarify the steps to connect multiple phones via bluetooh to an Amazon Echo & Alexa.
DevOps
How to Update Python 3.6 to Python 3.7 or 3.8 on Mac OS
Learn how to upgrade Python 3.6 to Python 3.7 or 3.8 on Mac OS.
How to Install Pip on Mac OSX
Learn how to handle bash: pip: command not found error.
How to Install Python 3 on Mac OS
Check out the steps below to install Python 3 on Mac OSX.
Productivity
How to Open Websites On A Web Browser Using A Command on Mac (OSX)?
Learn how to write simple shell script to open websites on a web browser window by using a command.
DevOp
How to Update Python 3.6 to Python 3.7 on Mac OS
Learn how to upgrade Python 3.6 to Python 3.7 on Mac OS.
Review
Best Exchange Rate and Cheapest International Wire Transfer Service
Ever feel that it costs quite a bit to send money overseas. Check out this service and save money on your next international wire transfer.