Batching
Also known as: Transaction Aggregation, Batch Submission, Grouped Transactions
A technique used in blockchain to group multiple transactions into a single operation, improving efficiency and reducing costs.
Batching is the process of combining multiple blockchain transactions into a single transaction or block submission to optimize gas usage, improve throughput, and reduce network congestion. This method is widely used in DeFi protocols, rollups, centralized exchanges, and bridges to aggregate user actions before posting them on-chain. Batching reduces fees and enhances scalability, but it introduces latency and potential risks if not executed correctly. Some Layer 2 solutions, such as Optimism and Arbitrum, rely on batch submission mechanisms to compress thousands of operations into one on-chain update.