Amazon Web Services (AWS) is the most comprehensive and widely used cloud platform globally, with over 200+ fully-featured services available from data centers worldwide. AWS is utilized by millions of clients, including the fastest-growing companies from small to largest corporations, including top government agencies, to reduce costs, improve agility, elasticity, cost-saving, deploy globally in minutes, and drive innovation.
Amazon Web Services provides a wide range of cloud-based services, including, Blockchain, Database, Management Tools, Developer Tools, End-User Computing, Enterprise Applications, Internet of Things, Machine Learning, Security, Storage. These services allow enterprises to move swiftly, save Technology costs, and develop. AWS is entrusted by the gigantic enterprises and the most desirable start-ups to control various workloads, including web and application development, gaming development, data management, warehousing, archiving, etc.
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Moreover, it offers various featured services such as Amazon EC2, Amazon Simple Storage Service (S3), Amazon Aurora, Amazon DynamoDB, Amazon RDS, AWS Lambda, Amazon VPC, etc.
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What is Cloud Development Kit
The AWS Cloud Development Kit (CDK) allows you to write code in one of the supported coding languages to define your network infrastructure. It is the main feature of AWS cloud development kit. Predominantly, you should have prior knowledge of prominent Amazon Web Services (AWS) and AWS Identity and Access Management (IAM). Moreover, You may have AWS passwords on your computer for usage with an AWS Software Development Kit or the AWS command-line interface and programming experience with Amazon Web Services resources.So, you can utilize it for processing.
Because the result of an AWS CDK application is an AWS CloudFormation template, expertise with AWS CloudFormation is also beneficial. Finally, you should know how to use the AWS CDK with the programming language you wish to employ.
Concepts
The AWS CDK is integrated with plenty of essential features.AWS CDK apps use the AWS CDK to describe AWS infrastructure and are written in TypeScript, JavaScript, Python, Java, or C#. Moreover, an app can represent one or more stacks. Constructs define one or more substantial AWS resources, such as Amazon S3 buckets, Lambda functions, Amazon DynamoDB tables, etc.
In your programming chosen language, constructs are signified as classes. To expose constructs to AWS, you can create them within a stack and connect them using well-defined protocols.
The CDK Toolkit (commonly known as the CLI) is a text interface tool included with the AWS CDK that allows you to work with your AWS CDK apps and stacks. The Toolkit will enable you to transform one or more AWS CDK stacks to AWS CloudFormation templates and relevant attributes and upload your stacks to an AWS account, among other things.
The AWS Construct Library is a library of AWS constructs arranged into several components with the AWS CDK. Each AWS service has its constructs in the library.
The aws-CDK-lib package contains the majority of the AWS Construct Library and core classes like Stack and App utilized in most CDK applications. The name of the main CDK package differs depending on the language.
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Constructs are divided into three categories:
WS CloudFormation-only or L1- These constructions correspond to AWS CloudFormation resource types. These constructs are produced automatically from the AWS CloudFormation, so when a new AWS service is released, the AWS CDK will support it shortly after AWS CloudFormation.
The names of AWS CloudFormation resources always start with Cfn. CfnBucket, for example, is the L1 construct for an Amazon S3 bucket in the Amazon S3 service. AWS-CDK-lib contains all L1 resources.
Curated or L2- The AWS CDK team specifically designs these constructs to solve specific applications and improve infrastructure development. They encapsulate L1 resources and provide security. The Amazon S3 bucket is the best example.
Supporting resources for the primary L2 resource can also be defined by libraries. Certain services have many L2 namespaces in the Construct Library for organizational concerns.
AWS-CDK-lib contains reliable L2 constructs, i.e., that may be used in development. If a service's L2 support is still being worked on, its constructs are labeled experimental and are available in a separate segment.
Patterns or L3. For certain use cases, you can build entire AWS architectures. All of the infrastructures are already inbuilt, so setup is limited to a few key variables.
Finally, the Construct base class is accessible in the constructions package. It's in its package because it's used by more than just the AWS CDK, including CDK for Terraform and CDK for Kubernetes.
Several third parties have also distributed AWS CDK-compatible constructions. To learn more about the AWS CDK build system, go to Construct Hub.
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Supported programming languages
TypeScript, JavaScript, Python, Java, and C# are enabled in the AWS CDK (Other Java Virtual Machine and .NET CLR languages can theoretically be used, but we cannot provide support for them). As a Developer Preview, Go support is provided.
The AWS CDK can be written in one language (TypeScript), and language bindings for the other languages are built using a tool called JSII. This allows the AWS CDK to support a wide number of languages.
To ensure that AWS CDK application development in each language adheres to that language's standard practices, building AWS CDK apps looks as comfortable as writing TypeScript in Python. Take a look at this:
The AWS Construct Library is provided via conventional package management tools for each language, such as NPM, PyPi, Maven, and NuGet. Each language has its own version of the AWS CDK API Reference. Moreover, it can work with:
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We can work with AWS CDK in TypeScript
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We can work with AWS CDK in JavaScript
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We can work with AWS CDK in Python
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We can work with AWS CDK in Java
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We can work with AWS CDK in C#
The AWS CDK was the first to support TypeScript, and much of the AWS CDK code is written in TypeScript. Now we shall discuss how to convert TypeScript AWS CDK code for usage with the other programming language. Look at TypeScript AWS CDK code conversion to other languages.
Prerequisites
To utilize the AWS CDK, you'll need to install the following. Node.js 10.13.0 or it required for all AWS CDK developers, including those working in Python, Java, or C#. The back end for all supported languages is based on Node.js. We recommend using a currently active version, long-term support, which is the latest 16.x release as of this writing. Your company may have a different recommendation.
Bootstrapping
Assets are external files that are utilized with the stack, such as AWS Lambda functions or Docker images, in many AWS CDK stacks. The AWS CDK saves them to an Amazon S3 bucket or another container so that AWS CloudFormation can use them during implementation. These containers must already be present in the account where you can deploy. Bootstrapping is the process of creating them. To bootstrap, consider the following:
You can retrieve your AWS account number via the AWS Management Console if you don't have it locally. The following command, if you have the AWS CLI installed, displays the default account information, including the account number.
If you have named profiles in your local AWS settings, the —profile parameter can be used to retrieve account data for a specific profile's account, such as the prod profile displayed here.
Use aws configure get to get the default region.
AWS CDK Tools
The main tool you connect with your AWS CDK app is the AWS CDK Toolkit, generally known as the Command Line Interface (CLI). It runs your code and generates AWS CloudFormation templates, then deploys. It can also be used for installation, diff, deleting, and troubleshooting. See cdk —help or AWS CDK Toolkit for further details (cdk command).
The AWS Toolkit for Visual Studio Code is an open-source Visual Studio Code plug-in that makes developing, testing, and installing AWS applications easier. The Toolkit includes the AWS CDK Explorer feature, which allows you to view the various components of an AWS CDK application and list your AWS CDK projects. Learn more about the AWS CDK Explorer by installing the plug-in.
Now, you would have understood the concepts of AWS CDK tools, prerequisite, Bootstrapping, and programming language that supports AWS. So, to learn more about the java development kit download, aws cloud development kit, connect cdk, aws cloud development kit and cdk webdesking, you can take up AWS course. Moreover, if you are interested in a cloud computing course, you can join Cloud Computing Training in Chennai and learn from Introduction To Cloud Computing to Getting Into AWS World.