Engineering service 01

API Integration Services Built for Production

For product and operations teams whose systems already need to communicate — and whose integrations need to survive vendor downtime, retries, changing schemas, and real production load.

  • Senior-led
  • Production-minded
  • Built to hand over
System blueprint Delivery ready
Designed for Production
01 REST, GraphQL, and SOAP API integrations
02 OAuth, signed requests, API keys, token rotation, and least-privilege access
03 Webhook verification, deduplication, ordering, and asynchronous processing
04 Rate-limit budgets, pagination, backoff, retries, and circuit breakers
StrategyBuildOperate
01

The engagement

From a real constraint to a system that works.

Where things break

The problem

The systems are known, but the integration is unreliable. Requests time out, webhooks arrive twice or out of order, rate limits stall sync, field mappings drift, and teams discover missing records only after a customer or finance report exposes the gap.

What changes

How we help

Aizaz Studio builds integration software around explicit contracts and failure recovery. We connect products, ERPs, CRMs, payment, logistics, and partner systems using versioned adapters, durable queues, idempotent handlers, reconciliation, and monitoring your team can operate.

02

What we can own

Senior execution across the critical path.

  1. 01

    REST, GraphQL, and SOAP API integrations

  2. 02

    OAuth, signed requests, API keys, token rotation, and least-privilege access

  3. 03

    Webhook verification, deduplication, ordering, and asynchronous processing

  4. 04

    Rate-limit budgets, pagination, backoff, retries, and circuit breakers

  5. 05

    Schema contracts, validation, transformations, and versioned adapters

  6. 06

    Queues, idempotency keys, dead-letter handling, and safe replay

  7. 07

    Reconciliation jobs, structured logs, alerts, and failure dashboards

  8. 08

    Partner-facing APIs, webhooks, documentation, and test environments

03

Where it creates value

Built around real operating scenarios.

01

Inbound webhook → verify → deduplicate → queue → process → acknowledge

02

Third-party outage → controlled backoff → circuit open → alert → safe replay

03

Source record → transform and validate → destination API → reconciliation check

04

Legacy or poorly documented API → test harness → adapter → monitored internal service

04

Why Aizaz Studio

Built for momentum without creating tomorrow’s mess.

01

Designed for failure

Timeouts, duplicates, rate limits, schema changes, and partial outages are normal operating conditions, not edge cases.

02

Contracts over guesswork

Data ownership, schemas, identifiers, state transitions, and error behavior are explicit and testable.

03

Operable after handoff

Monitoring, replay controls, runbooks, and documentation let your team understand and recover the integration.

01

Custom API integration for known systems and real constraints

Most buyers do not need an explanation of what an API is. They need two or more systems to exchange data without losing records or turning every vendor outage into an incident. We start with the APIs, authentication, data direction, latency, volume, and business consequence of failure.

Aizaz Studio works across REST, GraphQL, SOAP, webhooks, file exchanges, and legacy interfaces. We build the smallest integration layer that can be tested, monitored, and maintained rather than hiding business logic in scattered scripts.

02

Authentication, permissions, and data contracts

OAuth flows, signed requests, API keys, service accounts, token refresh, and credential rotation are part of the operating design. Credentials receive the narrowest useful permissions and sensitive values stay out of application logs.

Schemas and ownership rules define which fields are required, how values transform, which system wins a conflict, and what happens when a vendor adds or removes a field. Contract tests catch drift before it silently changes business data.

03

Webhooks, queues, idempotency, and safe replay

Webhooks can arrive twice, late, or out of order. Synchronous APIs can time out after completing the requested action. We use durable queues, stable identifiers, idempotency checks, ordering rules, and state-aware handlers so retries do not create duplicates.

When an operation still fails, dead-letter handling preserves the payload and context. Operators or automated recovery can replay it through the same validation and permissions as normal traffic instead of making an untracked manual change.

04

Monitoring for business records, not only HTTP status

A 200 response does not prove the systems agree. We combine structured logs and technical alerts with reconciliation jobs that compare expected business state across systems. Dashboards point to the affected customer, order, payment, or account and the next safe action.

For unstable third-party APIs, versioned adapters and test harnesses isolate vendor behavior from core product logic. This reduces the blast radius of a breaking change and makes replacement possible without rewriting the product.

Systems proof

Integration architecture at large data scale

The 1Archiver platform separates connectors, workers, storage, and the compliance system of record across multiple mail providers and tens of terabytes. That same discipline—clear boundaries, durable processing, observability, and recovery—guides our API integration work.

05

How we deliver

A clear path from context to production.

  1. 01

    Define the contract

    Map authentication, data ownership, schemas, volume, latency, and the consequence of failure.

  2. 02

    Build the reliable path

    Implement adapters, queues, idempotency, tests, and the required business transformations.

  3. 03

    Prove recovery

    Test outages and replay, add reconciliation and monitoring, then document operation and handoff.

FAQs

Frequently Asked Questions

Can you integrate with APIs that have poor documentation?+

Yes. We reverse engineer behavior, build test harnesses, and document findings so your team is not dependent on vendor docs alone.

How do you handle API rate limits and downtime?+

We use queues, rate-limit budgets, exponential backoff, circuit breakers, and alerts so temporary vendor issues do not cascade into data loss or customer impact.

Do you build middleware between systems?+

Yes. When two systems cannot talk directly, we build middleware that transforms, validates, and routes data reliably.

Can you expose APIs for our customers and partners?+

Yes. We build outward facing APIs and webhooks alongside inbound integrations, with auth, versioning, and developer documentation.

What if an integration partner changes their API?+

Versioned adapters and automated tests catch breaking changes early. We design integrations to absorb vendor updates with minimal downtime.

Next step

Bring us the APIs and the failure mode

Share the systems, authentication model, data direction, current architecture, and what breaks today. We will identify the safest first step. hello@aizaz.studio +92 334 2056691