AWS Lambda basic call

AWS Lambda Basic Call#

If you are new to AWS Lambda, you might wonder how to make a basic call to it. AWS Lambda is a serverless compute service that runs your code in response to events and automatically manages the compute resources for you. In this article, we will go over the basic steps required to make a call to AWS Lambda.

Step 1: Create a Function#

The first step is to create a function in AWS Lambda. To create a function, you need to have an AWS account. Once you have an account, you can navigate to the AWS Lambda console and create a new function. You can choose from a variety of supported languages, such as Node.js, Python, Java, and more.

// Example code in JavaScript

exports.handler = async (event) => {
  // Your code here
  return "Hello World!";
};

Step 2: Configure Triggers#

The next step is to configure triggers for your function. Triggers are events that cause your function to run. You can choose from a variety of triggers, such as API Gateway, S3, CloudWatch, and more.

Step 3: Test Your Function#

After creating your function and configuring triggers, you can test your function using the AWS Lambda console or the AWS CLI. You can pass in test event data to see the output of your function.

$ aws lambda invoke --function-name my-function --payload '{"key": "value"}' response.json

You can also test your function using an API Gateway trigger. To do this, you need to create an API Gateway endpoint and add your Lambda function as the backend. You can then make a request to the API Gateway endpoint to trigger your Lambda function.

Conclusion#

That's it! These are the basic steps required to make a call to AWS Lambda. AWS Lambda is a powerful tool that can help you build serverless applications quickly and easily. With AWS Lambda, you don't have to worry about managing servers, scaling, or availability. AWS Lambda takes care of all of that for you.