Express · REST · Middleware

Express.js Development

Express is deliberately small, and that is the point — it does routing and middleware well, then stays out of the way of your actual business logic.

  • Express 5
  • JWT Auth
  • Zod Validation
  • OpenAPI
  • Rate Limiting
  • Jest
OpenAPIDocumented endpoints your frontend can rely on
ValidatedBad input rejected before it reaches your data
Rate limitedProtected against abuse from day one
Our approach

How we think about Express.js

We build REST and GraphQL APIs on Express with authentication, request validation, structured error handling and rate limiting built in from the start rather than added after the first incident.

Endpoints come documented to OpenAPI, so your frontend team is not reverse-engineering the backend to get their job done.

What's included

What Express Development Includes

Small, fast APIs with the safety rails in place.

REST API Development

Clean routes, consistent responses and sensible status codes.

Authentication & JWT

Sessions, refresh tokens and role-based access handled correctly.

Request Validation

Schema validation so malformed input never reaches your database.

Rate Limiting & Security

Helmet, CORS and throttling configured, not left at defaults.

OpenAPI Documentation

Generated docs your frontend and partners can work against.

Testing & CI

Every endpoint covered and verified on each merge.

Why ElayneTech

Why Express Still Makes Sense

Minimal, but not naive.

Talk to an engineer
  1. 01

    No Framework Overhead

    You ship your logic, not a framework you have to work around.

  2. 02

    Middleware You Control

    Auth, logging and error handling composed exactly how you need them.

  3. 03

    Secured Properly

    The defaults are not safe. We configure them so they are.

  4. 04

    Documented by Default

    An API nobody can read is an API nobody can use.

  5. 05

    Easy to Take Over

    Express is so widely known that handover risk is close to zero.

  6. 06

    Fast to Extend

    New endpoints take hours, not sprints.

Process

How We Build Express APIs

Contract first, so parallel work is possible.

  1. 01

    Endpoint Design

    Resources, methods and payloads agreed and written down first.

  2. 02

    Auth & Security Setup

    Authentication, roles and rate limits in place before features.

  3. 03

    Build & Document

    Endpoints implemented, tested and published to OpenAPI as we go.

  4. 04

    Deploy & Monitor

    Released with logging, metrics and alerting configured.

FAQ

Common questions about Express.js

Have a different question? We reply within one business day.

Ask us anything
How much does Express.js Development cost?

It depends on scope, integrations and design complexity. After a free discovery call you get a written estimate with a price range, a timeline and the assumptions behind it.

How long does a typical Express.js project take?

A focused first release usually takes 8 to 14 weeks. Larger builds are delivered in phases, with something usable at the end of each phase.

Will we own the code and accounts?

Yes. Source code, repositories, store listings and credentials are handed over to you, and we sign an NDA before any details are shared.

Do you support the product after launch?

Yes. Every project includes a warranty period, and monthly support plans cover monitoring, updates, fixes and new features.

Need an API your frontend team will not curse?

Documented, validated and secured from the start. Let's talk about what you need it to do.