APIs That Connect, Scale and Last

We design, build and manage APIs that connect your enterprise systems reliably — from SAP to mobile, from partners to internal tools.

REST / OpenAPI 3GraphQLNode.js.NET
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Deka Technology engineers working on api development & integration projects
100+
API integrations delivered
15+
Enterprise systems connected
99.9%
Integration uptime
<500ms
Average API response latency
THE CHALLENGE

When systems cannot talk to each other

Every enterprise runs dozens of systems — SAP for finance, Salesforce for sales, a custom portal for distributors, a mobile app for field teams. Each works. None of them share data reliably. The gaps between systems are filled by manual processes: exports, spreadsheets, copy-paste between screens.

The fix is not more integrations — it is the right API architecture. Well-designed APIs become organizational assets: consumed by multiple systems, versioned without breaking consumers, monitored for reliability and governed centrally.

OUR APPROACH
01

Design & Contract-First

We define API contracts (OpenAPI / GraphQL schema) before writing code. Security model, versioning strategy and rate-limiting are designed at this stage.

02

Build & Document

API implementation with full documentation published to a developer portal. Every endpoint is tested and every response schema is validated.

03

Monitor & Govern

API gateway deployment with traffic monitoring, alerting, usage analytics and lifecycle management. APIs are versioned and deprecated in a controlled way.

CAPABILITIES

What we deliver

RESTful API Design

Pragmatic, well-documented REST APIs following OpenAPI 3 specifications. Consistent naming conventions, clear resource models, predictable error handling and versioning from the start.

GraphQL API Development

GraphQL schemas for flexible data fetching — particularly for mobile clients and B2B portals that need different data shapes from the same source. DataLoader patterns to prevent N+1 query problems.

API Gateway & Management

Azure API Management, AWS API Gateway or Kong with rate limiting, authentication, throttling and developer portal publishing. Centralized governance for all APIs.

SAP & ERP Connectivity

APIs that expose SAP data and processes to web, mobile and third-party consumers. OData, RFC/BAPI, IDoc and SAP BTP integration flows.

Third-Party Integrations

Connecting your systems to payment providers, logistics platforms, communication services and partner APIs. OAuth2, API keys, mTLS, error handling and retry logic for every integration.

API Security

OAuth 2.0, OpenID Connect, JWT validation, rate limiting, input sanitization and transport security. APIs are the attack surface of modern software — we treat security as a first-class concern.

Struggling with fragile integrations or undocumented APIs?

Talk to an API architect who has built enterprise-grade platforms.

Discuss your project
100+
API integrations delivered
15+
Enterprise systems connected
99.9%
Integration uptime
<500ms
Average API response latency
PROJECT SPOTLIGHT
API · GRAPHQL · SAP

Central European Beverage Corporation

CHALLENGE

A field-sales mobile app needed a flexible API layer connecting PostgreSQL and a complex SAP landscape — handling 70+ data domains with real-time sync.

APPROACH

We designed a GraphQL API layer with DataLoader patterns to prevent N+1 queries. Bidirectional SAP integration via REST synchronized orders, master data and pricing in real time.

RESULT

A single, documented API surface serving the mobile app and future consumers. Integration latency reduced, data consistency guaranteed across SAP and mobile.

GraphQL + SAP70+ domainsReal-time sync
USE CASES

Where we apply it

  • Let developers discover and consume APIs via a self-service portal
  • Expose SAP data to web and mobile apps through clean APIs
  • Onboard partners to your API platform in days, not months
  • Connect payment and logistics providers without custom code
  • Serve all commerce channels from a single API layer
TECHNOLOGY

Technologies

REST / OpenAPI 3GraphQLNode.js.NETAzure API ManagementKongOAuth 2.0SAP OData / BTP
TECHNOLOGY PARTNERS
Microsoft Microsoft
SAP SAP
FAQ

Common questions about api development & integration

When should we choose REST versus GraphQL? +

REST is the right default for most APIs — simple, cacheable and widely understood. GraphQL makes sense when multiple consumers need different data shapes from the same backend, and when over-fetching is a real performance problem. We assess your case and recommend the right approach.

How do you version APIs without breaking existing consumers? +

URI versioning for REST, additive schema evolution for GraphQL. Deprecated endpoints are kept running with documented sunset dates. API gateways provide traffic analytics so you see which consumers use which versions.

Can you expose SAP data through a modern API? +

Yes. We build API layers on top of SAP using OData, RFC/BAPI wrappers and SAP BTP integration flows. Your consumers call a clean REST or GraphQL API — we translate to SAP underneath.

How do you secure enterprise APIs? +

OAuth 2.0 with client credentials or authorization code flows. HTTPS with TLS 1.2+, JWT validation, rate limiting and input schema validation. For internal APIs, mutual TLS where appropriate. Security is designed at the architecture stage.

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Let's build something that works.

No commitment. Just a clear conversation about your project.

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