eth_getBlockByNumber - Astar RPC Method
Retrieve complete block data by block number on Astar. Perfect for multi-chain dApp developers, DeFi builders, and teams leveraging Polkadot + Ethereum ecosystems building on Polkadot's leading dApp hub supporting EVM, WASM, and upcoming PolkaVM environments.
Returns information about a block by block number on Astar.
Why Astar? Build on Polkadot's leading dApp hub supporting EVM, WASM, and upcoming PolkaVM environments with EVM + WASM + PolkaVM support, Build2Earn developer rewards, dApp Staking, and Soneium cross-layer integration.
Use Cases
The eth_getBlockByNumber method is essential for:
- Block explorers - Display complete block information
- Transaction indexers - Process all transactions in a block
- Analytics platforms - Analyze blockchain data for cross-chain DeFi, multi-VM smart contracts, and XCM-enabled interoperability with Ethereum and Cosmos
- Timestamp verification - Get block timestamps for time-based logic
Code Examples
Error Handling
| Error Code | Message | Description |
|---|---|---|
| -32602 | Invalid params | Invalid block number or parameter format |
| -32000 | Block not found | Block does not exist |
Related Methods
eth_blockNumber- Get latest block numbereth_getBlockByHash- Get block by hasheth_getTransactionByHash- Get transaction details
eth_blockNumber
Get the current block height on Astar. Essential for syncing dApps, monitoring transaction confirmations, and blockchain state tracking.
eth_getBlockByHash
Retrieve complete block data by block hash on Astar. Essential for multi-chain dApp developers, DeFi builders, and teams leveraging Polkadot + Ethereum ecosystems building on Polkadot's leading dApp hub supporting EVM, WASM, and upcoming PolkaVM environments.