chain_getBlock - Moonbase RPC Method
Retrieve block data by hash on Moonbase Alpha. Essential for accessing block headers and extrinsics on the Moonbeam testnet for risk-free EVM dApp development and deployment testing.
Retrieves complete block information from Moonbase Alpha, including the block header, extrinsics, and justifications.
Why Moonbase? Build on the Moonbeam testnet for risk-free EVM dApp development and deployment testing with free testnet tokens, full EVM compatibility, XCM testing capabilities, and identical feature set to Moonbeam mainnet.
Use Cases
The chain_getBlock method is essential for:
- Block explorers - Display complete block information
- Chain analysis - Analyze block production patterns
- Transaction verification - Confirm extrinsic inclusion for EVM dApp testing, XCM integration validation, and pre-mainnet deployment verification
- Data indexing - Build historical blockchain databases
Best Practices
- Cache block data by hash -- blocks are immutable once finalized on Substrate chains
- Use
chain_getBlockHashfirst to resolve block number to hash before calling this method - Handle
nullresults gracefully for non-existent blocks - Combine with
chain_getFinalizedHeadfor consensus-safe block retrieval
Code Examples
Related Methods
chain_getBlockHash- Get block hash by numberchain_getHeader- Get block header onlychain_getFinalizedHead- Get finalized block hash
Moonbase Alpha RPC Guide
Production-ready JSON-RPC guide for Moonbase Alpha, covering endpoints, network specs, integration patterns, and troubleshooting for builders targeting the Moonbeam test network.
chain_getBlockHash
Get block hash by number on Moonbase Alpha. Essential for converting block numbers to hashes, historical queries, and blockchain navigation on the Moonbeam testnet for risk-free EVM dApp development and deployment testing.