Tien HoAWS Lambda is a serverless compute service provided by Amazon Web Services (AWS) that allows you to run code without provisioning or managing servers. Here’s a more detailed explanation:
Key Features of AWS Lambda:
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Serverless Architecture:
- AWS Lambda abstracts the underlying infrastructure, so you don't need to worry about server management, scaling, or maintenance. You simply upload your code, and Lambda automatically handles the rest.
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Event-Driven Execution:
- Lambda functions are triggered by various AWS services or HTTP requests via Amazon API Gateway. Common triggers include changes in an S3 bucket, updates in a DynamoDB table, or messages in an SQS queue.
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Pay-as-You-Go Pricing:
- You only pay for the compute time your code consumes, measured in milliseconds, and the number of requests. There are no charges when your code isn’t running, making it cost-efficient, especially for sporadic workloads.
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Automatic Scaling:
- AWS Lambda automatically scales your application by running the code in response to each trigger. Your code runs in parallel, processing each trigger individually, making it highly scalable without any additional configuration.
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Supports Multiple Languages:
- Lambda supports several programming languages, including Python, Node.js, Java, C#, Go, and Ruby. You can also bring your own custom runtime.
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Integrated with AWS Services:
- Lambda is tightly integrated with many other AWS services like S3, DynamoDB, Kinesis, and CloudWatch, enabling seamless data processing and application development.
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Flexible Deployment and Management:
- You can manage and deploy Lambda functions using the AWS Management Console, AWS CLI, or infrastructure-as-code tools like AWS CloudFormation and the Serverless Framework.
Use Cases for AWS Lambda:
- Real-time File Processing: Process files as they are uploaded to S3.
- REST APIs: Serve backend logic for web and mobile applications using API Gateway and Lambda.
- Data Transformation: Transform and stream data in real-time from services like Kinesis.
- Automated Tasks: Execute scheduled tasks using CloudWatch Events or automatically respond to system changes.
AWS Lambda is an ideal choice for applications where you need to run short-lived, event-driven tasks without the overhead of managing servers.
