WhatsApp Store AI Assistant
AI-powered conversational sales assistant transforming WhatsApp into an automated store with instant replies and product management.
Technology · 6 projects
Express.js API and backend development
Express is a minimal web framework for Node.js that handles routing and requests and leaves the structure to you. I use it when an API needs to stand on its own, serving a web app, a mobile app and sometimes partner systems from one backend, rather than living inside a single frontend project.
When Express.js is a good fit
- APIs shared by a web app, a React Native app and external partners
- Webhook receivers for Stripe, WhatsApp, Shopify and other services
- Backends with background jobs, queues or long-running tasks
- Existing Express codebases that need new features, fixes or a security review
When I'd suggest something else
- A small backend used only by one Next.js site, where built-in API routes avoid running a second service
- Teams that want strong conventions out of the box, where a more opinionated framework such as NestJS may suit better
How I work with Express.js
Layered structure
Routes stay thin and call services for business logic, with data access kept separate, so the code is easy to test and change.
Request validation
Every body, query and parameter is validated with a schema before it is used, and errors return consistent, readable responses.
Security middleware
Authentication, role checks per route, rate limiting, secure headers and CORS configured for the clients that actually need access.
Observability
Structured logs, request IDs and health checks so problems in production can be traced instead of guessed at.
Projects built with Express.js
Carriers Dispatch Logistics
High-efficiency truck dispatching and freight management portal helping fleet owners and owner-operators optimize shipment loads.
Sentineilogic & M.A.P. Security
Fintech security and Money Allocation Planner (M.A.P.) combining psychological insights, encrypted user data protection, and financial management.
ConFidelityCo Smart Investment
Secure digital investment & peer lending platform with automated risk management, plan calculators, and meeting schedulers.
Beauty Saloon & Spa Booking
Elegantly styled beauty saloon and wellness spa appointment booking platform with service catalogs, pricing tiers, and review ratings.
Capital Skye Commercial Finance
UK corporate financial capital portal providing SME short-term business loans (£20,000 to £10,000,000) funded in 24 hours.
Frequently asked questions
Is Express still a good choice?
Yes for most APIs. It is stable, widely understood and has middleware for almost everything. Its minimalism means structure has to be decided deliberately, which I do at the start of a project.
Can you document the API for our other developers?
Yes. I can provide an OpenAPI specification with example requests and responses, so frontend, mobile or partner developers can work without asking questions.
Where would the Express API be hosted?
Usually a managed platform such as Railway, Render, Fly.io or a container service on a major cloud, chosen for your region, traffic and budget.
Need a Express.js developer?
Tell me about your product, your current stack and your timeline. I will reply with questions and a practical next step.
Request a quote