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The following is the list of what all can one build with AWS Lambda:
• Real-time file processing
• Sorting real-time stream processing
• Data processing
• Data validation
• Filtering
• Third-party API requests
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One can use Lambda in the following ways:
• As an event-driven compute service, AWS Lambda runs code in response to events.
• These events can be the changes to data in an Amazon S3 bucket or AWS DynamoDB
• Lambda can run code in response to HTTP requests using Amazon API Gateway or API calls made using AWS SDKs.