ONDC: Peer to Peer E-Commerce Network

ONDC, or the Open Network for Digital Commerce, is revolutionizing e-commerce in India by creating an open, interoperable network that decouples buyers from sellers and platforms from products.

What is ONDC?

ONDC is a government-backed initiative that aims to democratize digital commerce by creating an open network that allows buyers and sellers to transact regardless of the apps they use. This is a paradigm shift from the current platform-centric model where buyers and sellers must use the same platform to transact.

The current e-commerce model relies on a platform-centric approach where platforms have become gatekeepers who own the relationship with both buyers and sellers. This model has led to concerns about platform monopolies, data sovereignty, and the exclusion of small and medium businesses from e-commerce.

ONDC addresses these concerns by creating a network-centric model where:

• Buyers can use any buyer-side app to discover products and services from all participating sellers
• Sellers can use any seller-side app to make their products and services visible to all interested buyers
• The network itself is built on open protocols and specifications, not controlled by any single entity

Before we move further, it is important to understand two main underlaying ideas

P2P Networks

Since the inception of internet, there are many attempts on establishing p2p networks where individuals talk to each other directly for communication, sharing data, files and even money. In fact the first big application that popularised internet to masses was p2p sharing of music files via Napster. Napster was a centralised p2p network, in general below diagram shows taxonomy to explain various possible configurations

The core function that contributes to define centralised or decentralised network is the function of search/discovery and registration of participating nodes in the network. In case of centralised, a central server functions as a registry and stores the details of identity and capability of a participating node. Looking at the two extremes, fully centralised and decentralised, most networks will fall somewhere in the middle so that they are able to reliable and still not centrally controlled.

Beckn Protocol

Beckn is a protocol to define rules to be followed for a new network that will work on top of Internet and have standardised message and scheme for exchanging information, specifically designed and optimised for e-commerce and trade. The network allows for P2P communication and follows an Open registry model, which means, it allows for anyone to join the network who follows the rulebook and it also allows for various entities marinating the registration of participants of the network. These registries work together by verifying each other (using an existing technology called chain of trust used heavily in Certification Authorities for issuing X509 certificates, SSL etc.) Once the infrastructure setup is done for these registries, they can start accepting participants who will be performing commerce. But there is still one key function that needs to be performed, which is the function of searching and routing requests from buyers and sellers in a commerce transaction. This is done by gateways which are generally these registries or could be other entities. Once we have these functions setup, then we can start having commerce messages exchanged between transacting entities enabling direct (p2p) message exchange between buyers and sellers without the need of a platform.

This is shown in the below diagram, demonstrating various layers in the overall architecture of the Beckn network.

How ONDC Works

The ONDC architecture follows a peer-to-peer design where buyer and seller apps can communicate through standardized protocols. The key components include:

1. Gateway: The central registry that authenticates participants and routes communications
2. Buyer App: Consumer-facing applications that help users discover, compare and purchase products
3. Seller App: Applications used by sellers to list their products and manage orders
4. Beckn Protocol: The underlying communication protocol that enables interoperability

When a user searches for a product on a buyer app, the app sends a discovery request to the ONDC gateway. The gateway broadcasts this request to all relevant seller apps, which respond with matching products. The buyer app aggregates these responses and presents them to the user.

Benefits of ONDC

ONDC offers several advantages over the current platform-centric model:

• Inclusivity: Small businesses can participate in e-commerce without significant investment or technical expertise
• Consumer Choice: Consumers can access products and services from multiple sellers through their preferred app
• Competition: Reduced barriers to entry promote innovation and competitive pricing
• Data Privacy: Users have greater control over their data, which isn't concentrated with a few platforms
• Local Commerce: Neighborhood stores can compete effectively with large retailers

The Blockchain Connection

ONDC's architecture shares similarities with blockchain networks in several ways:

• Decentralization: No single entity controls the network
• Open Standards: Protocols and specifications are open and accessible to all
• Network Effects: Value increases as more participants join the network
• Trust Mechanisms: Built-in verification and reputation systems

While ONDC doesn't use blockchain technology directly, its peer-to-peer architecture and open protocol (BECKN) approach reflect similar principles of decentralization and interoperability.

Challenges and Future Directions

Despite its promising vision, ONDC faces several challenges:

• Network Adoption: Achieving critical mass of buyers and sellers
• Standardization: Ensuring consistent product information and service quality
• Technical Implementation: Building robust, scalable infrastructure
• Governance: Balancing oversight with innovation

As ONDC continues to evolve, it has the potential to fundamentally transform e-commerce not just in India, but globally. By creating an inclusive, open network for digital commerce, ONDC may establish a new paradigm for how we think about online marketplaces and digital trade.

Conclusion

ONDC represents a bold experiment in creating a more open, inclusive digital commerce ecosystem. Its peer-to-peer architecture challenges the platform-centric model that has dominated e-commerce to date, offering a vision of digital markets that are accessible to all participants regardless of size or technical sophistication.

As the initiative grows and evolves, it will be fascinating to see how this network-centric approach reshapes the e-commerce landscape, potentially offering a blueprint for similar initiatives around the world.