AWS Lambda helps to quickly and easily build and run applications on the AWS cloud that automatically run code in response to events.   AWS Lambda in Action is an example-driven tutorial that teaches readers how to build applications that use an event-driven approach on the back end. By the end of this book, readers will be ready to use AWS Lambda to create applications that take advantage of the high availability, security, performance, and scalability of AWS.   Key Features: Example-driven tutorials Solid introduction to security Teaches readers to create applications in AWS   Readers will have basic knowledge of JavaScript. Most examples are provided in JavaScript and Python. No prior experience with AWS needed.   About the Technology: AWS Lambda is different from a traditional approach based on physical or virtual servers: you only need to give your logic, grouped in functions, and the service itself takes care of executing the functions if and when required, managing the software stack used by the runtime you chose, the availability of the platform, and the scalability of the infrastructure in order to sustain the throughput of the invocations.