Ethereum Transaction Subscription

Ethereum Blockchain Updates powered by Redis Pub/Sub

Ethereum Transaction Subscription allows clients to subscribe to pending Ethereum blockchain transactions using a Pub/Sub mechanism powered by Redis.

How It Works

The publisher server fetches the latest pending Ethereum blockchain transactions and publishes them to the Redis Channel named {from}/{to}/{amount} where from and to are the sender and the receiver of the Ethereum transaction.

Right now the subscriber script subscribes to all the channels using a * glob pattern. However it can be updated to subscribe to the transactions of a specific sender / receiver or transactions between a particular sender & receiver or transactions between a particular sender & receiver for a specific amount.

e.g.

{sender_address}/*/*

*/{receiver_address}/*

{sender_address}/{receiver_address}/*

{sender_address}/{receiver_address}/{amount}

Getting Started

https://github.com/viraja1/ethereum_transaction_subscription#ethereum-transaction-subscription

Usecases

• Useful for merchants to process payments using ethereum
• Useful for crypto exchanges
• Track certain transactions between sender and receiver
• Track certain smart contract events
• Improve UX of ethereum Apps
• Same feature can be extended for other blockchains too

Future features

• Use Redis Queue to track pending transactions until they are confirmed
• Create more specific channels for different types of transactions e.g. ERC 20 token transfers, Smart Contract events, etc.

Built With

• ethereum
• infura
• node.js
• redis
• web3