Season One, Episode Three of Overledger Showcase will focus on making your app multi-chain by transferring data across different blockchains with Overledger.

Data transfer bridge across blockchains

User goal: "I want to transfer data from one blockchain to another blockchain."

Technical setup: Read a smart contract function on the origin blockchain. Perform some intermediate processing. Prepare a smart contract transaction to write the read data to a key, value storage smart contract in the destination blockchain. Sign the transaction and execute it.

Data transfer bridge from legacy system to a blockchain

User goal: "I want to transfer data from any API to a blockchain."

Technical Setup: Read a non-blockchain API. Prepare a smart contract transaction to write the read data to a key, value storage smart contract in the destination blockchain. Sign the transaction and execute it.

Cross chain transactions

User goal: "I want a transaction on one blockchain to trigger a transaction on another blockchain."

Technical setup: Monitor events on a smart contract on the origin blockchain. Filter the event to check if a particular event has occurred. If the trigger event occurs, prepare a smart contract transaction to perform the desired action on the destination blockchain. Sign the transaction and execute it.