A signed URL includes additional information, for example, an expiration date and time, that gives you more control over access to your content. This additional information appears in a policy statement, which is based on either a canned policy or a custom policy.

Cloudfront restrict user access by signed URLs

Sometimes you want to show a progress bar while downloading a file in Node.js. This article will show you how to do that.

Show a progress bar when downloading files in Node.js

AWS Backup is a service that provides backup and restore of your AWS resources. This is an example of how to use the AWS Backup API to assign resources to a backup plan.

AWS Backup resources assignment by Tag using AWS CDK

Custom Authorizers allow you to run an AWS Lambda Function via API Gateway before your targeted AWS Lambda Function is run. This is useful for Microservice Architectures or when you simply want to do some Authorization before running your business logic.

API Gateway Authorizer Function for Auth0 or AWS Cognito using the JWKS method.

You can authenticate and protect your Amazon OpenSearch Service default installation of OpenSearch Dashboards using Amazon Cognito. This article will show you how to do this using the AWS CDK.

Configuring Amazon Cognito authentication for OpenSearch Dashboards in AWS CDK

This blog post will show you how to use husky and git-secrets to prevent committing passwords and other sensitive information to a git repository. This is a good idea because it reduces the risk of your API key and secret being exposed to your code.

Using husky and git-secrets to prevent committing sensitive information to a git repository.

As of July 19th, 2022 Amazon Web Services released their Design System as open-source along with a library of React components that implement the design system. This blog post is a quick overview of the design system and how it can be used with NextJS.

CloudScape Design with NextJS

AWS SDK v3 now stable and recommended for general use. AWS SDK for JavaScript(V2) is deprecated. This article is serries of tips and tricks to use aws-sdk v3. The first article is about how to save text file from S3 using aws-sdk v3.

Save text file from S3 using aws-sdk v3

This is a simple example of how to use Route53 and S3 to forward your domain to absolute URLs.

Use Route53 + S3 to forward your domain to absolute URLs.

Sometimes you want mail clients to group emails into threads. For example, if you have a group of emails that are related to the same topic, you want to mail clients to group them together when the user views the list of emails in threaded view, the email client will show the thread.


AWS SES sends mails with a custom Reference header

AWS CloudFormation templates can contain parameters—custom values that are supplied at deployment time and incorporated into the template. Since the AWS CDK synthesizes AWS CloudFormation templates, it too offers support for deployment-time parameters. Using the AWS CDK, you can both define parameters, which can then be used in the properties of constructs you create, and you can also deploy stacks containing parameters.

How to use parameters in AWS CDK?

Storing and managing secrets like API keys and other credentials can be challenging. Your API key is valuable information and an accidental leak could result in unwanted calls, app blockage, or worse. Publicly exposing your API keys can lead to unexpected charges on your account

Improve the Security of API Keys [Checklist included]

AWS Lambda now supports event filtering for Amazon DynamoDB. But AWS CDK is not yet able to support this. In this article, I will show how to do this in CDK.

Filtering DynamoDB event for AWS Lambda functions

The automatic references created by CDK when you use resources across stacks are convenient but may block your deployments if you want to remove the resources that are referenced in this way. This blog will explain how to remove cross-stack references

AWS CDK Removing automatic cross-stack references

Today, I would like to introduce you to a tool, called Metube Video Downloader. It is a simple program that can download videos from 10.000+ platforms. It has more exciting features than any other video downloader.

Metube.one - Video downloader, download video from 10.000+ platforms.

Assume that you have a Cognito user pool and you want to create an API that allows user to access to API without any authentication. This article will show you how to do that.

Allow user access to your API without authentication (Anonymous user access)

A Lambda proxy integration enables you to integrate an API route with a Lambda function. When a client calls your API, API Gateway sends the request to the Lambda function and returns the function's response to the client. Today, I will show you how to create a Lambda proxy integration for an HTTP API in AWS CDK.

AWS Lambda proxy integrations for HTTP APIs in AWS CDK

All spinners are displayed as 24 x 24 dp. The main content rests inside the live area of 22 dp with a padding of 1dp.

A collection of 24 x 24 dp SVG spinners!

You can deploy your Lambda function code as a container image. This blog post is about how to do that in AWS CDK.

Deploy Python Lambda functions with container images in AWS CDK

Because Node.js doesn't run TypeScript code natively, you must first transpile your TypeScript code into JavaScript. Then, use the JavaScript files to deploy your function code to Lambda. But now you can write a lambda typescript with the NodejsFunction construct without transpile your code first.

Building Lambda functions with TypeScript in AWS CDK

You can use CloudFront to automatically compress certain types of objects (files) and serve the compressed objects when viewers (web browsers or other clients) support them. Today I will show how to do it in AWS CDK.

Configuring CloudFront to compress objects in AWS CDK

Mock Service Worker is an API mocking library for browsers and Node. It provides seamless mocking by interception of actual requests on the network level using Service Worker API. This makes your application unaware of any mocking being at the place.

API mocking example (Mock Service Worker) with Next.js

In this article, I will show you how to implement Amazon API Gateway as a proxy for DynamoDB by using AWS cdk. It is simple and very interesting.

Using Amazon API Gateway as a proxy for DynamoDB in AWS CDK

This example creates Http proxy using API gateway of cdk.

Create HTTP Proxy APIGateway in AWS CDK

In this blog, we will discuss issues with dealing with dates times and distributed systems in general (distributed clients as well as distributed decision services)

Issues Date/Time With Serverless functions

Let's assume that we want to execute python file in a node js environment. So the container image should have both python and node js runtime and the container should compatible with lambda

All Posts

Cloudfront restrict user access by signed URLs

Show a progress bar when downloading files in Node.js

AWS Backup resources assignment by Tag using AWS CDK

API Gateway Authorizer Function for Auth0 or AWS Cognito using the JWKS method.

Configuring Amazon Cognito authentication for OpenSearch Dashboards in AWS CDK