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Node.js

Event-driven, non-blocking I/O for API gateways, real-time applications, and BFF layers. The natural choice for connection-heavy workloads.

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Where it fits

Event-driven by default

Node.js processes I/O asynchronously through its event loop, making it efficient for connection-heavy workloads where threads would be wasteful.

With ESM modules, top-level await, and built-in fetch and test runners, Node.js is reducing its dependency on third-party packages. Fastify benchmarks at 76,000+ requests per second.

Technology snapshot

Market demand 5/5

Current industry demand for this technology

Adoption 5/5

How widely used by development teams worldwide

Scalability 4/5

How well it handles growth in load and complexity

At a glance

Common in API services, real-time apps, serverless
Key frameworks Fastify, NestJS, Express, Hono
Runtime Node.js 20+, also Bun and Deno
Typical pattern BFF layers, WebSockets, edge functions
Common use cases
API GatewaysReal-Time AppsServerless FunctionsBFF Layers
What we deliver

Our Node.js capabilities

01

API services with Fastify & NestJS

Schema-based validation for high-throughput APIs. NestJS adds structured, decorator-based architecture.

FastifyNestJSOpenAPI
02

Real-time & WebSocket systems

Persistent connection workloads for live dashboards, collaborative editing, and notification systems.

WebSocketSocket.IOSSE
03

Serverless & edge deployment

The most widely supported serverless runtime. Cold starts under 100ms on Lambda, Workers, and Edge Functions.

AWS LambdaCloudflare WorkersSST
Why Adaca

Why Adaca for Node.js?

Enterprise API layers

BFF services and API gateways between React front-ends and Java or .NET backends.

Event loop expertise

Event loop phases, microtask queues, worker threads, and diagnostics via clinic.js.

Real-time delivery

WebSocket notification systems with reconnection logic, backpressure handling, and Redis pub/sub scaling.

Observability & reliability

OpenTelemetry, Pino structured logging, and health checks reporting event loop lag and memory usage.

Shared TypeScript stack

Node.js engineers who also build the React front-ends. One team, one language, shared types.

Serverless architecture

Lambda and Workers with cold start optimisation, connection pooling, and cost modelling for variable traffic.

Building an API or real-time service?

Talk to our Node.js engineers about API architecture, WebSocket design, or serverless deployment.

Talk to Our Experts