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CodeArcLabs

Cloud & Platform Engineering

API and microservices development

Clean interfaces between every system you run.

What this service does

APIs are how modern software talks to itself and to the outside world. We design and build secure, documented APIs and services that your web and mobile apps, partners and internal systems can depend on, and we split a large application into services when that genuinely helps it scale.

Design and build REST and GraphQL APIs, microservices and integrations that let your applications and partners work together reliably.

From the problem to a working system.

01
The problemSystems are wired together with fragile one-off scripts. A change in one place breaks another, and every new integration takes longer than the last.
02
How we solve itWe define clear contracts between systems, build services that each do one job well, add authentication, versioning and monitoring, and document everything so teams can build on it.
03
What it looks likeA mobile app, a partner portal and an internal dashboard all read orders from one API. When an order changes, a service publishes an event and billing and notifications respond on their own.

What we build

REST and GraphQL APIs

Well-designed, versioned and documented interfaces with authentication and rate limits.

Microservices

Focused services that scale independently, with the messaging and data patterns that keep them consistent.

Integrations

Reliable connections to payment, accounting, CRM, logistics and messaging platforms, with retries and error handling.

API modernization

Modern APIs wrapped around legacy systems, so new applications can use them without rewriting the old ones.

How a typical flow works

One example of how the pieces connect, from the first trigger to the final record.

  1. Client request

  2. Gateway authenticates

  3. Service handles it

  4. Event published

  5. Other services react

  6. Response returned

Common use cases

  • REST and GraphQL APIs
  • Third-party integrations
  • Microservice architecture
  • Event-driven systems
  • Webhooks and data sync
  • API gateways and documentation

Technology we use

  • Node.js
  • Python
  • FastAPI
  • Django
  • GraphQL
  • PostgreSQL
  • Redis
  • Docker

Questions we hear most

Something not covered here? Ask us directly.

When separate parts of your product need to scale, deploy or change independently, or when several teams work on one system. For smaller products a well-structured single application is often simpler and cheaper, and we will say so.

REST suits most integrations and public APIs. GraphQL helps when clients need flexible queries across related data. We choose based on who will use the API and how.

Yes. We connect payment, accounting, CRM, shipping and messaging platforms, with retries, logging and monitoring so failures are visible.

With authentication, authorization, input validation, rate limiting, encrypted connections and careful handling of secrets, plus reviews against any requirements specific to your industry.

Yes. We deliver clear documentation and examples so your team and your partners can build on it without asking us.

Ready to talk about api & microservices?

Have a project in mind? Tell us what you're building. We'll help you scope it and get to launch.