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Manav Bhatia
Manav Bhatia

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Building Scalable B2B Commerce with ONDC Using SpurtCommerce

India’s Open Network for Digital Commerce (ONDC) introduces a different way of building commerce systems. Instead of platform-centric marketplaces, it enables interoperable communication between buyers, sellers, logistics providers, and platforms.

For developers, this is not just an integration problem.
It is an architecture problem.

In this post, we will look at how SpurtCommerce approaches ONDC integration from a system design perspective and why a queue-driven architecture becomes essential.

Understanding ONDC from a Developer Perspective

Unlike traditional ecommerce APIs that follow a request-response model, ONDC operates using asynchronous workflows.

A typical flow involves:

  • A request initiated by one participant

  • Multiple callbacks from different network participants

  • State updates happening over time

  • Event-driven communication across systems

This means your platform must be able to:

  • Handle high volumes of incoming callbacks

  • Maintain transaction state across multiple events

  • Ensure idempotency and reliability

  • Avoid blocking core application workflows

This is where most traditional ecommerce architectures struggle.

The Core Challenge: Asynchronous Scale

As ONDC adoption grows, the number of network messages increases significantly.

Processing everything synchronously can lead to:

  • Increased latency

  • System bottlenecks

  • Failed or dropped callbacks

  • Tight coupling between network communication and business logic

To avoid this, ONDC integrations need to be decoupled from the core commerce system.

SpurtCommerce Approach: Queue-Driven Architecture

SpurtCommerce solves this using a queue-based processing model powered by:

  • BullMQ for job queue management

  • Redis for high-performance message handling

Instead of processing ONDC messages directly in the request lifecycle:

  1. Incoming ONDC requests and callbacks are pushed into queues
  2. Workers process these messages asynchronously
  3. Business logic is executed independently of the request thread
  4. Results are stored and propagated back into the system

This ensures that ONDC communication does not block core operations like:

  • Product catalog management

  • Order processing

  • Payment workflows

Architecture Benefits
1. Scalability

Queues allow horizontal scaling of workers. As message volume increases, more workers can be added without affecting the core application.

2. Reliability

Built-in retry mechanisms ensure that transient failures do not break the transaction flow.

3. Decoupling

ONDC communication is separated from core services, reducing system complexity and improving maintainability.

4. Fault Tolerance

Failures in ONDC message handling do not impact the main commerce workflows.

5. Observability

Queue-based systems make it easier to monitor message flow, debug failures, and track processing states.

Key Capabilities of the ONDC Connector

The SpurtCommerce ONDC Connector enables:

  • Reliable protocol communication

  • Scalable handling of callbacks

  • Retry and failure management

  • Clean separation from core services

  • Easier debugging and monitoring

This design allows developers to focus on business logic rather than managing network complexity.

Why This Matters for Developers

If you are building ONDC-enabled systems, the key takeaway is simple:

Do not treat ONDC as a simple API integration.

It is an event-driven distributed system problem.

Your architecture must:

  • Support asynchronous workflows

  • Handle high message throughput

  • Maintain system stability under load

  • Decouple external communication from core logic

Without this, scaling ONDC integrations becomes difficult.

Final Thoughts

ONDC is pushing commerce toward open, interoperable systems.

But with that openness comes architectural complexity.

SpurtCommerce addresses this by combining:

  • Event-driven design

  • Queue-based processing

  • Scalable backend infrastructure

This approach ensures that businesses can participate in ONDC without compromising performance or reliability.

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