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There are many activities that can be performed on AWS Lambda; for example, it can be used to build mobile backends from Amazon DynamoDB to retrieve and transform data.
Handlers transform and compress objects as they get uploaded to Amazon S3.
This is done by using Amazon Kinesis, serverless processing of streaming data.
The reporting and auditing of API calls can be made to any web service of Amazon, and many other activities can also be done with the help of AWS Lambda.
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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.