chain_getBlock - Acala RPC Method
Retrieve block data by hash on Acala. Essential for accessing block headers and extrinsics on Polkadot's DeFi and liquidity hub with aUSD stablecoin and liquid staking (LDOT).
Retrieves complete block information from Acala, including the block header, extrinsics, and justifications.
Why Acala? Build on Polkadot's DeFi and liquidity hub with aUSD stablecoin and liquid staking (LDOT) with $250M aUSD ecosystem fund, 150%+ LDOT TVL growth, micro gas fees payable in any token, and Coinbase Cloud partnership.
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 decentralized stablecoin (aUSD), liquid DOT staking (LDOT), and cross-chain AMM DEX
- 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
Acala RPC with Dwellir
Production-ready Acala parachain RPC endpoints, quick start guides, Substrate JSON-RPC coverage, and best practices for building on Acala with Dwellir.
chain_getBlockHash
Get block hash by number on Acala. Essential for converting block numbers to hashes, historical queries, and blockchain navigation on Polkadot's DeFi and liquidity hub with aUSD stablecoin and liquid staking (LDOT).