Welcome to AWS Lambda and serverless computing! This is a compute service that lets you run code without provisioning or managing servers. It's the ultimate "no servers to manage" solution.
Engagement Message
What is one benefit you find appealing about not having to manage servers?
"Serverless" doesn't mean servers are gone. It just means you, as the developer, don't see or manage them. AWS handles all the underlying infrastructure, patching, and scaling behind the scenes. You focus purely on your code.
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In what way could this change a developer's daily workflow?
Lambda is an event-driven service. Your code, called a "Lambda function," runs in response to events from other services. These triggers could be an HTTP request from an API, a new file upload, or a change in a database table.
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Can you think of an event on your phone that might trigger some code to run automatically?
Here's the revolutionary part: with Lambda, you pay only for what you use. You are charged based on the number of requests for your functions and the time your code executes. When your code isn't running, there's no charge.
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Give an example of a workload where paying only for execution time could save a lot of money.
Lambda scales automatically and precisely. If one user triggers your function, Lambda runs one copy. If a thousand users trigger it at the same time, Lambda instantly runs a thousand copies of your function in parallel.
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How is this different from manually adding more EC2 instances to handle traffic?
