Serverless vs Monolith — Let’s Dive Deep | AWS Lambda
When to choose serverless (AWS Lambda) versus EC2/monoliths — trade-offs, costs, and practical patterns.
Aaditya Binod Yadav
Distributed Backend Engineer
Serverless — sounds too cool to be true, right? An app without any servers?
Well, not exactly.
Let’s unpack what “serverless” really means, how it compares to a monolithic architecture, and when to use AWS Lambda vs EC2.
Monolithic Architecture: The All-in-One Squad
A monolith refers to a single unified application where all components — frontend, backend, business logic, and database access — are bundled together and run as one service.
Serverless Architecture: Small, Fast, and Event-Driven
“Serverless” doesn’t mean there are no servers. It means you don’t manage them.
With serverless architecture, you break your application into small functions that run in response to events. These functions can be triggered by anything — an HTTP request, an image upload, or even a voice command.
Pricing and When To Use Each
Lambda is great for bursty workloads and event-driven logic; EC2 gives you full control for long-running or performance-sensitive tasks.
(Examples and pricing notes omitted for brevity.)