🌐 API Integration

APIs That Are Documented, Secured, and Built to Be Maintained

When no connector exists, the answer is a custom API integration. RASPSYS designs and builds REST integrations with the authentication, error handling, and documentation that keep them supportable.

What We Deliver With REST API

Anyone can make an API call succeed once. The engineering is in what happens on the four-hundredth call, when the token expired and the endpoint rate-limited you.

Custom Integration

Connect systems that no off-the-shelf connector supports.

  • Third-party API integration
  • Legacy system connectivity
  • Webhook and event handling

Authentication & Security

OAuth, API keys, and token lifecycles handled properly.

  • OAuth 2.0 and JWT flows
  • Secure credential storage
  • Token refresh and rotation

Salesforce API Work

REST, Bulk, and Streaming API integration built around governor limits.

  • REST and Composite API
  • Bulk API for large volumes
  • Platform Events and Streaming

Resilience

Rate limits, retries, and idempotency designed in from the start.

  • Exponential backoff and retry
  • Idempotency keys
  • Circuit breakers and fallbacks

API Design & Documentation

If you are publishing an API, it needs a contract people can build against.

  • OpenAPI specification
  • Versioning strategy
  • Developer documentation

Monitoring

Visibility into latency, error rates, and quota consumption.

  • Request and error logging
  • Latency and quota dashboards
  • Failure alerting

Our REST API Delivery Approach

A structured engagement model that de-risks delivery and gets working functionality into your team's hands early.

  1. Specify

    We read the target API docs properly and confirm what it can actually do.

  2. Design

    Auth flow, data contract, error handling, and retry strategy.

  3. Build

    Integration built with logging and tests against a sandbox.

  4. Harden

    Rate limit, failure, and edge-case testing before production.

  5. Support

    Monitoring and maintenance as the upstream API changes.

Not Sure REST API Is the Right Fit?

Most REST API engagements start with a short discovery call rather than a full proposal. RASPSYS LLP will review your current systems, tell you what is realistically achievable, and give you an honest view of scope and cost - with no obligation.

Book a Free Consultation Call +91 78276 12742

Why Clients Choose RASPSYS LLP for REST API

We are a Salesforce and CRM consultancy serving clients across the UK, US, UAE, Canada, and Australia - with delivery teams that work in your time zone.

Tested Against Reality

We test failure modes and rate limits, not just the happy path.

Global Delivery

Supporting API and integration work across the UK, US, UAE, Canada, and Australia.

Salesforce Depth

Governor limits, Bulk API patterns, and Platform Events are routine work for us.

Frequently Asked Questions

The questions we are asked most often about REST API.

When the volume is low enough that platform licensing is not justified, when the logic is too specific for a connector, or when you already have engineering capacity to own it. An iPaaS wins when you need many integrations, non-developers maintaining them, or built-in monitoring and governance.

By choosing the right API for the job. Bulk API for large data volumes, Composite for related-record operations to reduce call count, and Platform Events for asynchronous decoupling. We also design for the daily API request allocation, which is the limit most integrations actually hit first.

It will. We build with version pinning where the vendor supports it, log all responses so a schema change is visible immediately rather than as a silent failure, and set up alerting on error-rate spikes. Ongoing support retainers exist largely because upstream APIs deprecate on their own schedule, not yours.

Yes. Every integration ships with an architecture note, the auth flow, endpoint and payload reference, error handling behaviour, and a runbook for common failures. If we publish an API for you, it also gets an OpenAPI specification.

Salesforce Consulting

End-to-end Salesforce implementation, customisation, and managed services.

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System Integration

Connect Salesforce to the ERP, finance, and operational systems you already run.

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All Services

Browse the full range of CRM, integration, and development services RASPSYS LLP delivers.

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Ready to Connect Something With No Connector?

Book a free 30-minute call with a RASPSYS consultant.
We will look at the API you need to integrate and scope it honestly.