API Design & Development
REST or GraphQL APIs with clear data contracts, versioning, and documentation (e.g., OpenAPI/Swagger)—so teams and systems work together cleanly.
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API Integration & Interfaces
We connect your systems into stable data flows: APIs, webhooks, synchronization, and integrations into ERP, CRM, shop, and accounting solutions. The result: fewer manual exports, fewer breaks between tools—and data you can rely on.
Sync
Consistent data—automatically
API-First
Contracts, versioning, docs
Robust
Retries, idempotency, monitoring
Cleanly planned, delivered fast
Built secure & audit-ready
What we integrate for you
You can tell good interfaces by the fact that they “just work”: clear data models, stable synchronization, clean error handling, and operational transparency. We build integrations so they remain reliable under real-world conditions.
System Integration
Connecting and orchestrating ERP, CRM, shops, payment, and third-party tools— including authentication, permissions, and stable data flows.
Data Mapping & Synchronization
Field mapping, validation, and transformation logic—batch, near real-time, or event-driven. Goal: consistent data instead of duplicate “truths” across multiple systems.
Webhooks & Event-Driven
Webhooks, queues/jobs, and asynchronous processing—so integrations stay performant, absorb peak load, and handle errors in a controlled way (including dead-letter strategies).
Auth, SSO & Security
OAuth2/OpenID Connect, API keys, token handling, role models, and secure communication. We build security pragmatically—aligned with data risk and compliance requirements.
Monitoring & Operations
Observability for interfaces: logging, metrics, tracing, and alerts. So you spot outages and data issues early—instead of only when the customer calls.
How we build interfaces that work day-to-day
Integration is more than “calling an API.” What matters are data contracts, failure cases, responsibilities, and operational transparency. We plan it cleanly up front—and deliver iteratively, so you see value quickly and risks stay small.
01
Discovery & System Map
Capture systems, data sources, user roles, and processes. Which data is the “source of truth”? Result: clear data flows, priorities, risks—and an actionable integration plan.
02
Data Contracts & Interface Design
Define API contracts, data model, mapping rules, versioning, rate limits, and failure cases. So integration remains understandable—even as systems evolve.
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Implementation & Testing
Iterative delivery with clear deliverables: adapters, webhooks, jobs/queues, and APIs. Plus automated tests, test data, and monitoring hooks—so stability becomes measurable.
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Rollout, Observability & Operations
Controlled rollout, logging/tracing, alerts, and clear runbooks. That way outages and data deviations are detected quickly—and integrations remain maintainable long-term.
Technology & Standards
DevSolux builds interfaces following proven integration standards: clear data contracts, secure authentication, robust error handling, and full operational transparency. Technology is a means to an end—what matters is stability, data quality, and maintainability.
- API contracts: OpenAPI/Swagger, versioning, pagination, rate limiting
- Robustness: idempotency, retries, timeout strategies, dead-letter flows
- Security: OAuth2/OIDC, secure secrets, least privilege, transport encryption
- Observability: structured logs, metrics, tracing, alerts & runbooks
Questions that almost always come up at the start
REST is often ideal for clear resources, caching, and stable integrations.
GraphQL is strong when many clients (web/app) need to fetch data flexibly and overfetching is a concern.
We decide based on the use case, data model, team setup, and operations—not on trends.
With clear “sources of truth,” clean IDs, idempotency, validation, and defined conflict rules.
Plus retries with backoff, traceable logs, and monitoring—so deviations become visible early
and can be corrected in a targeted way.
Yes. We integrate both modern APIs and “grown”/legacy system landscapes.
What matters is a clean interface strategy (API/webhook/batch), stable error handling,
and clear responsibilities—so the integration doesn’t turn into a never-ending construction site.
We rely on secure authentication (e.g., OAuth2/OIDC), least privilege, secure secrets,
transport encryption, and traceable audit logs.
We approach data protection through data minimization, clear data flows, and defined retention/deletion concepts.
Which systems should be connected, which data objects are relevant (e.g., customers, orders, products),
how often data needs to flow (realtime/batch), and what authentication is already in place.
With this info, we propose the most sensible next step—often a short discovery
to make scope and effort reliable.
Ready for clean data flows instead of manual exports?
Tell us briefly which systems should be connected and what “working” means for you. We’ll get back to you with a clear, actionable next step—no detours.
Let’s get started