Full-Stack Node.js & Elysia Development

End-to-End TypeScript: One Language from Database to Browser

Full-stack TypeScript eliminates the most common source of bugs in web development: the boundary between backend and frontend. With Elysia and Eden Treaty, your frontend knows the exact shape of every API response at compile time. Change a field name on the server and your frontend build fails - not your users’ experience.

Bun as the runtime gives you performance that rivals Go for HTTP workloads while keeping you in the TypeScript ecosystem. Hot module replacement, built-in test runner, and native TypeScript execution mean fewer tools in your chain and faster development cycles.

Plugin-Based Domain Modeling with Eden Treaty Clients

We build the backend as a set of Elysia plugins, each representing a domain. User management, billing, content - each plugin owns its routes, validation, and business logic. Plugins compose at the application level, keeping concerns separated without complex dependency injection frameworks.

The frontend connects via Eden Treaty, which infers types from the Elysia server without code generation. We pair this with React, Vue, or Svelte depending on your team’s preference and product requirements. The result is a frontend where every API call is type-checked - wrong field names, missing parameters, and incorrect types are caught by the compiler.

Drizzle ORM, WebSockets, and Composable Query Pipelines

Drizzle ORM handles database access with SQL-level control and full type safety. Queries are composable and readable - you can trace from a database column to an API response to a UI component with types connecting every step.

For real-time features, we use Elysia’s WebSocket plugin, which shares the same type system as REST routes. Background processing uses BullMQ for persistent job queues when needed, or simple in-process tasks for lighter workloads. File uploads, email sending, and third-party integrations each get their own service with proper error handling and retry logic.

Shipping Single-Binary Deploys with Bun Compile

We deploy using Docker with Bun’s compile feature - single-binary deployments that start in milliseconds. CI/CD pipelines run type checks, linting, and tests in parallel using Bun’s fast test runner.

Feature development is iterative. We plan sprints around user outcomes, not technical tasks. Each sprint ships working features to production. As your product grows, the type system scales with it - refactoring is safe because the compiler verifies that nothing breaks. Your product evolves without accumulating the fear that accompanies changes in untyped codebases.

Bun-Level Throughput Meets OpenTelemetry Tracing

Elysia running on Bun consistently benchmarks among the fastest JavaScript frameworks available, handling tens of thousands of requests per second on modest hardware. We take advantage of this headroom by adding OpenTelemetry instrumentation from day one. Every route gets automatic tracing, and Elysia’s lifecycle hooks let us capture request duration, payload size, and downstream dependency latency without cluttering business logic. Prometheus-compatible metrics feed into Grafana dashboards so you have production visibility from the first deployment, not as an afterthought six months later.