Custom dApp messaging

This document explores a use case for enabling custom dapp-to-dapp communication using the Nexera Interoperability Protocol aggregator built on top of both messaging providers: CCIP and Nexera Messaging Protocol.

Traditional dApp Communication Limitations

Siloed Blockchains: Blockchains often operate in isolation, hindering communication between dApps deployed on different chains.

dApp Communication solution

This is where a messaging protocol aggregator gets more relevance. It allows dApps to send arbitrary messages across different blockchains, enabling a wider range of use cases compared to specialized solutions.

Bridge Implementation:

As mentioned before the Nexera Interoperability Protocol was built specifically to leverage one of both messaging protocols for message transfer between blockchains:

• Chainlink CCIP
• Nexera messaging protocol

Message Validation

The bridge was designed to validate messages before forwarding them, ensuring data integrity and security.

Fee Mechanism

The bridge implements a fee mechanism to cover operational costs associated with message transmission.

Custom dApp Messaging with Nexera Interoperability Protocol:

1. Router dApp Initiates Message: A router dApp deployed on Chain A sends a custom message containing relevant data (e.g., user ID, action) to the teleport contract on Chain A, and potentially locks some assets as collateral.
2. Teleport supports message provider selection: a message provider selector helps to select a message provider in order to send a message.
3. Message validation: The message provider validates the message format.
4. Cross-Chain Message Transmission: The provider on chain A transmits the validated message securely to the corresponding messaging provider on Chain B.
5. Teleport on Chain B calls router dApp: The bridge on Chain B verifies the message and executes the call to router dApp with the message.
6. Target dApp Receives Message: The bridge delivers the message to the designated dApp contract address on Chain B.
7. dApp on Chain B Reacts: The dApp on Chain B interprets the message and performs the intended action based on the received data.

Benefits of this Approach:

1. Flexible Communication: dApps can exchange arbitrary data, enabling diverse use cases beyond token transfers.
2. Security: Messaging protocols and bridge validation mechanisms ensure secure message transmission across chains.
3. Modular Design: The separation of Messaging protocols and bridge functionalities allows for potential future upgrades or integrations.

Potential Use Cases:

1. Cross-Chain Gaming: Players on Chain A can interact with in-game assets on Chain B through verified messages.
2. Decentralized Marketplaces: dApps can facilitate cross-chain order routing and settlement using secure messaging.
3. Interoperable DeFi Applications: Communication between DeFi protocols on different chains can enable innovative financial products.

Conclusion:

By leveraging Messaging protocols and Nexera Interoperability Protocol, dApp developers can unlock a new level of interoperability and enable creative use cases for cross-chain communication. As Messaging protocols and bridge technologies evolve, we can expect even more possibilities for seamless interaction between dApps deployed on various blockchains.