AWS Serverless Architecture

Serverless architecture is a cloud computing model where the cloud provider manages and dynamically allocates resources to execute applications. In a serverless architecture, you don't have to worry about provisioning or managing servers, as the cloud provider handles it for you.

AWS Lambda is a serverless compute service provided by AWS. It allows you to run your code without provisioning or managing servers. With Lambda, you can write code in various languages such as Java, Python, JavaScript, and more, and it automatically handles the scaling and availability of your code.

API Gateway is another important service provided by AWS that complements Lambda. It acts as a front-end interface for your Lambda functions, routing requests to the appropriate function and managing authentication, authorization, and request throttling.

Here's an example of a Lambda function written in JavaScript:

1exports.handler = async(event) => {
2    const response = {
3        statusCode: 200,
4        body: "Hello, World!"
5    };
6    return response;
7};

In this example, the Lambda function responds with a "Hello, World!" message when invoked.

By using AWS Lambda and API Gateway together, you can build scalable and cost-effective serverless applications that are automatically managed by AWS.

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// Here's an example of a Lambda function

​

exports.handler = async(event) => {

    const response = {

        statusCode: 200,

        body: "Hello, World!"

    };

    return response;

};