AWS FAQ: AWS Lambda

AWS Lambda is a serverless compute service that lets you run code without provisioning or managing servers. You only pay for the compute time you consume.

🗺️ Step-by-Step Instructions:

1. Write your function code in the Lambda console or upload a deployment package.
2. Choose a runtime and set triggers (e.g., API Gateway, S3 events).
3. Test and deploy the function.

📥 Example Input:

exports.handler = async (event) => {
  return "Hello from Lambda!";
};

🏆 Expected Output:

"Hello from Lambda!"

✅ AWS Lambda Handler Example:

exports.handler = async (event) => {
  return {
    statusCode: 200,
    body: JSON.stringify('Hello from Lambda!'),
  };
};

📘 Detailed Explanation:

• Event-driven: Executes in response to triggers.
• Scalable: Automatically scales based on traffic.
• Cost-efficient: Pay only when code runs.

🛠️ Use Cases:

• Microservices and APIs.
• Real-time file and data processing.
• Automation and backend workflows.