aws-cdk VS aws-lambda-java-libs

environment: Specifies the environment variable that will be available to our Lambda function. In this case I wrote an environment for RDS Database. Anyway, later I will write about AWS CDK using Python for creating database clusters, etc.

Today, I will show you how to build Amazon Location Service, which allows you to build location-based applications within your AWS environment using AWS Cloud Development Kit (AWS CDK) and AWS CloudFormation. I will also show examples of the recently popular CDK Migrate and AWS CloudFormation IaC generator.

AWS Cloud Development Kit (CDK): is an open-source software development framework to define your cloud application resources using familiar programming languages.

I am not one to build programming languages on a whim. In fact, I've spent the last five years building the AWS CDK, which is a multi-language library that addresses some of the challenges I am talking about by allowing developers to define cloud infrastructure using their favorite programming language.

I recently started exploring SST as an alternative to my favorite full-stack set consisting of Projen, AWS CDK, and React. I have been thoroughly impressed with the experience so far. In this article, I will demonstrate how to create a Next.js App Router S3 Picture Uploader using SST.

AWS CDK

For KMS 🔑, Each key is ~$1/mo, and with CDK, keys are generated on a massive scale, if not centralized.

Here is a github repository containing the code and instructions on how to automate this whole setup using AWS CDK.

Now that you have a working smart contract event listener, we'll deploy the resources to AWS using AWS CDK, which is an Infrastructure as Code (IaC) tool. AWS CDK allows you to configure, deploy, and manage AWS cloud resources using popular programming languages such as TypeScript.

✨ Synthesis time: 14.44s CdkScheduledReportingStack: start: Building f3a91fb0ff1605e49b4b00aa223098d7a9a5307e98027f77aecc36bc05a4c3e7:current_account-current_region CdkScheduledReportingStack: success: Built f3a91fb0ff1605e49b4b00aa223098d7a9a5307e98027f77aecc36bc05a4c3e7:current_account-current_region CdkScheduledReportingStack: start: Publishing f3a91fb0ff1605e49b4b00aa223098d7a9a5307e98027f77aecc36bc05a4c3e7:current_account-current_region CdkScheduledReportingStack: start: Building 517f907ce2318aa1a929b43bc1a0247ed509c92576c23a0a8aadfe1677f2ebd7:current_account-current_region CdkScheduledReportingStack: success: Built 517f907ce2318aa1a929b43bc1a0247ed509c92576c23a0a8aadfe1677f2ebd7:current_account-current_region CdkScheduledReportingStack: start: Publishing 517f907ce2318aa1a929b43bc1a0247ed509c92576c23a0a8aadfe1677f2ebd7:current_account-current_region CdkScheduledReportingStack: success: Published 517f907ce2318aa1a929b43bc1a0247ed509c92576c23a0a8aadfe1677f2ebd7:current_account-current_region CdkScheduledReportingStack: success: Published f3a91fb0ff1605e49b4b00aa223098d7a9a5307e98027f77aecc36bc05a4c3e7:current_account-current_region This deployment will make potentially sensitive changes according to your current security approval level (--require-approval broadening). Please confirm you intend to make the following modifications: IAM Statement Changes ┌───┬────────────────────────────────────────┬────────┬───────────────────────┬────────────────────────────────────────┬───────────────────────────────────────────────┐ │ │ Resource │ Effect │ Action │ Principal │ Condition │ ├───┼────────────────────────────────────────┼────────┼───────────────────────┼────────────────────────────────────────┼───────────────────────────────────────────────┤ │ + │ ${SalesReportFunction.Arn} │ Allow │ lambda:InvokeFunction │ Service:events.amazonaws.com │ "ArnLike": { │ │ │ │ │ │ │ "AWS:SourceArn": "${Rule.Arn}" │ │ │ │ │ │ │ } │ ├───┼────────────────────────────────────────┼────────┼───────────────────────┼────────────────────────────────────────┼───────────────────────────────────────────────┤ │ + │ ${SalesReportFunction/ServiceRole.Arn} │ Allow │ sts:AssumeRole │ Service:lambda.amazonaws.com │ │ ├───┼────────────────────────────────────────┼────────┼───────────────────────┼────────────────────────────────────────┼───────────────────────────────────────────────┤ │ + │ ${SalesReportTopic} │ Allow │ sns:Publish │ AWS:${SalesReportFunction/ServiceRole} │ │ └───┴────────────────────────────────────────┴────────┴───────────────────────┴────────────────────────────────────────┴───────────────────────────────────────────────┘ IAM Policy Changes ┌───┬────────────────────────────────────┬────────────────────────────────────────────────────────────────────────────────┐ │ │ Resource │ Managed Policy ARN │ ├───┼────────────────────────────────────┼────────────────────────────────────────────────────────────────────────────────┤ │ + │ ${SalesReportFunction/ServiceRole} │ arn:${AWS::Partition}:iam::aws:policy/service-role/AWSLambdaBasicExecutionRole │ └───┴────────────────────────────────────┴────────────────────────────────────────────────────────────────────────────────┘ (NOTE: There may be security-related changes not in this list. See https://github.com/aws/aws-cdk/issues/1299) Do you wish to deploy these changes (y/n)?

FaaS is specifically focused on building and running applications as a set of independent functions or microservices. Major cloud providers like AWS (Lambda), Microsoft Azure (Functions), and Google Cloud (Cloud Functions) offer FaaS platforms that allow developers to write and deploy individual functions without managing the underlying infrastructure.

So AWS Lambda is basically a serverless computing service that is offered by AWS. It enables developers to run the code in response to various events. It protects the developers from the pain of managing the servers. Using a serverless execution model helps the developers to handle provision, manage and scale the servers automatically. Through this approach the developers can fully focus on writing the code instead of dealing with other aspects.

The first product that popularized the term “serverless” was AWS Lambda, which is both the prototypical and archetypical function as a service provider. It also has a great name, which pings back to its envisioned place in the cloud of the future. In computer programming, a lambda, often referred to as a lambda function or lambda expression, is a concise way to represent an anonymous function, which is a function without a name. The concept originates from lambda calculus in mathematical logic and has been adopted by many programming languages, each with its own syntax and characteristics.

You can build a custom config rules in 2 ways, using AWS Lambda and CloudFormation Guard. Lambda gives you a lot of flexibility, but it also brings complexity of maintaining. CloudFormation Guard is a bit more lightweight in that regard. Yes, you still need to maintain the logic to determine when your resource is compliant or not. But you need to do this in both cases, thus my go to preference is CloudFormation Guard.

AWS Lambda: https://aws.amazon.com/lambda/

This blog details how you can use some key serverless components from AWS like Amazon Eventbridge, AWS Lambda, and Simple Notification Service to setup a system that will monitor your site (which can be running anywhere) and send emails, text messages, slack messages, and more when the reachability status of your site changes.

I use the OpenWeather API to receive the current temperature data by providing the latitude and longitude coordinates as query strings in the request. A Lambda function invokes the weather API and sends the current temperature value as a custom metric to CloudWatch. I then graph the temperature values on a dashboard and activate an alarm when the temperature sinks below zero degrees Celsius.

After two years, I moved to a Web3 startup where I was given a lead software engineer role. This new role gave me more hands-on experience with AWS, where I've learned to implement serverless technologies like Lambda and DynamoDB.

I discussed a way to control access to endpoints using JSON web tokens and a Lambda authorizer earlier.