What is Serverless?
Serverless computing is a cloud model where the provider manages server infrastructure, automatically scaling and billing only for actual compute time used.
Serverless Explained
Serverless computing abstracts server management entirely—you write code (functions), deploy it, and the cloud provider handles everything else: provisioning, scaling, patching, and availability. You pay only for actual execution time, not idle servers. Major serverless platforms include AWS Lambda, Google Cloud Functions, and Vercel Edge Functions. Despite the name, servers still exist; you just don't manage them. Serverless is ideal for event-driven workloads, APIs with variable traffic, and functions that run infrequently. At M3L Software, we use serverless for specific use cases like webhook processing, scheduled tasks, and edge functions, while using traditional servers for primary API workloads where consistent performance and cost predictability are important.
Key Features
Common Use Cases
Frequently Asked Questions
Is serverless cheaper than servers?
For variable/bursty workloads, yes. For consistent, high-traffic workloads, traditional servers are often cheaper. Serverless eliminates idle server costs but has higher per-execution costs.
What is a cold start?
Cold starts occur when a serverless function hasn't been invoked recently. The platform needs to provision resources, causing latency (100ms-3s). Strategies to mitigate: keep functions warm, use provisioned concurrency, or accept the trade-off.
Can I build a whole app on serverless?
Yes, but consider the trade-offs. Serverless works well for APIs and event processing. It's less ideal for long-running processes, WebSocket connections, or applications needing sub-10ms response times consistently.
Related Terms
AWS
Amazon Web Services (AWS) is the world's leading cloud computing platform, offering 200+ services including computing, storage, databases, AI, and deployment infrastructure.
Read moreDocker
Docker is a platform for building, shipping, and running applications in lightweight, isolated containers that package code with all dependencies for consistent deployment.
Read moreAPI
An Application Programming Interface (API) is a set of rules and protocols that allows different software applications to communicate with each other, enabling data exchange and functionality sharing.
Read moreMicroservices
Microservices is an architectural pattern where an application is built as a collection of small, independent services that communicate over APIs, each responsible for a specific business function.
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