Node.js Development for APIs, Realtime Apps and Services
Backends in JavaScript or TypeScript for apps that need live updates, many small requests or one language across web and mobile. Express and NestJS, built to be handed over.
Node.js development fits products where many users are connected at once and data changes live: order tracking, chat, delivery dispatch, dashboards that update without a refresh. It handles lots of small, simultaneous requests well, and your web team can share one language across front end and back end. Used well, one team can ship the API and the web client together.
It is less suited to heavy number crunching or to teams that already know PHP well. We say so early. Where Node fits, we use TypeScript, a clear module structure and tests on the logic that handles money, so the codebase stays readable after the first release. We explain this before you sign, not after the first invoice.
Why Node.js projects go wrong
Everything in one file
Quick prototypes grow into one huge server file. New developers cannot find anything, and each fix breaks another route.
No plan for realtime load
Live tracking works with ten test users and falls apart with a thousand. Connections, reconnects and message ordering need design.
Weak error handling
One unhandled error can bring a Node process down. Without restarts, logs and alerts, you find out from angry customers.
Outdated or risky packages
Node projects pull hundreds of packages. Unmaintained ones carry known flaws, and a careless install can break the build.
What our Node.js development delivers
REST and GraphQL APIs
Clear, documented endpoints for web and mobile clients, with validation, authentication and rate limits. Versioned so old app releases keep working.
Realtime features
WebSocket or server-sent updates for live order status, rider location, notifications and chat. We plan reconnection and fallbacks for patchy mobile networks.
NestJS or Express structure
NestJS when the system is large and several developers will work on it; Express when you want something lean. Either way modules, services and tests are separated.
Microservices where they earn their place
We split services only when scale, team size or deployment needs justify it. For most products a well-organised single service is cheaper and easier to run.
Queues, jobs and integrations
Background processing with Redis queues for emails, WhatsApp messages and invoice generation. Payment webhooks from Razorpay are verified and handled safely.
Deployment and monitoring
Process management, logs, health checks, backups and alerts on a VPS or cloud setup that fits your budget. You see errors before customers do.
How a Node.js project runs
Discover
We list the actions your users take, which of them must be live, and how many people may use the system at once.
Define
You get an API outline, data model and a written fixed quote for the first release. We name what we will leave for later.
Design
We sketch the message flow and failure cases: what happens if payment succeeds but the order write fails, or a rider goes offline.
Build
TypeScript services with tests on payments and permissions, delivered on a staging server you can call from the app or Postman.
Ship & extend
We deploy with logs and alerts, load-check the live endpoints and support you for one month. New services are added as separate scoped work.
What it costs
That anchor fits a typical API plus admin product. Realtime scale, many integrations or microservices raise the price, which we fix in writing after a discovery call.
- Number of endpoints and user roles
- Realtime features and expected concurrency
- Third-party integrations
- Database choice and data migration
- Hosting and monitoring setup
All prices exclude 18% GST. See also website costs and app costs.
Related work
Questions we get asked
When should I choose Node.js over PHP or Python?
Choose Node.js for realtime features, many parallel requests, or when your team wants JavaScript end to end. Choose Laravel for admin-heavy business software, and Python for data and machine learning work. The right choice follows your product and team, not fashion.
Express or NestJS, which do you use?
Express for small, focused services where speed of delivery matters. NestJS for larger products with several developers, since it enforces structure, dependency injection and testing habits. We pick after understanding the size and lifespan of your system.
Can Node.js handle a food delivery or ride-style app?
Yes, it suits live status and location updates well. Success depends on design: how updates are batched, how reconnects work on weak networks and how orders stay consistent. We plan those before building, and load-test the key paths.
Do you write TypeScript or plain JavaScript?
TypeScript by default. Types catch mistakes before they reach users and make handover easier. For a very small script or a client who insists on plain JavaScript, we can work that way, but we recommend TypeScript for anything long-lived.
Which database do you use with Node.js?
PostgreSQL for most business data because relationships and reports matter. MongoDB when data is document-shaped and changes shape often. Redis for queues and caching. We explain the trade-offs for your case rather than defaulting to one.
Can you take over a half-built Node.js backend?
Yes, after a short code review covering structure, dependencies, tests and deployment. You get a written report on what to keep and what to rewrite. We would rather tell you honestly than patch something that will keep failing.
Ready to scope it?
Tell us what you want to build. You get a fixed written quote after a free discovery call.