Cost Optimization Techniques

Serverless architectures are known for their cost efficiency, but it's not always a guarantee. Understanding how costs accrue is crucial for keeping your AWS bill in check.

The core principle is pay-per-use. You only pay for the compute, storage, and data transfer you consume, down to milliseconds. This eliminates idle costs but requires careful optimization.

AWS Lambda pricing primarily depends on two factors:

• Number of Requests: You're charged for every time your function is invoked.
• Compute Duration: This is the time your code executes, rounded up to the nearest millisecond. It's measured in GB-seconds, meaning memory allocated multiplied by execution time.

The more memory you allocate, the higher the GB-second cost, but it can also reduce execution time if your function is CPU-bound.