rpc.md

Helios Remote Procedure Calls

Helios provides a variety of RPC methods for interacting with the Ethereum network. These methods are exposed via the Client struct. The RPC methods follow the Ethereum JSON RPC Spec. See examples of running remote procedure calls with Helios.

RPC Methods

RPC Method	Client Function	Description	Example
eth_getBalance	get_balance	Returns the balance of the account given an address.	client.get_balance(&self, address: &str, block: BlockTag)
eth_getTransactionCount	get_nonce	Returns the number of transactions sent from the given address.	client.get_nonce(&self, address: &str, block: BlockTag)
eth_getCode	get_code	Returns the code at a given address.	client.get_code(&self, address: &str, block: BlockTag)
eth_call	call	Executes a new message call immediately without creating a transaction on the blockchain.	client.call(&self, opts: CallOpts, block: BlockTag)
eth_estimateGas	estimate_gas	Generates and returns an estimate of how much gas is necessary to allow the transaction to complete.	client.estimate_gas(&self, opts: CallOpts)
eth_getChainId	chain_id	Returns the chain ID of the current network.	client.chain_id(&self)
eth_gasPrice	gas_price	Returns the current price per gas in wei.	client.gas_price(&self)
eth_maxPriorityFeePerGas	max_priority_fee_per_gas	Returns the current max priority fee per gas in wei.	client.max_priority_fee_per_gas(&self)
eth_blockNumber	block_number	Returns the number of the most recent block.	client.block_number(&self)
eth_getBlockByNumber	get_block_by_number	Returns the information of a block by number.	get_block_by_number(&self, block: BlockTag, full_tx: bool)
eth_getBlockByHash	get_block_by_hash	Returns the information of a block by hash.	get_block_by_hash(&self, hash: &str, full_tx: bool)
eth_sendRawTransaction	send_raw_transaction	Submits a raw transaction to the network.	client.send_raw_transaction(&self, bytes: &str)
eth_getTransactionReceipt	get_transaction_receipt	Returns the receipt of a transaction by transaction hash.	client.get_transaction_receipt(&self, hash: &str)
eth_getTransactionByHash	get_transaction_by_hash	Returns the information about a transaction requested by transaction hash.	client.get_transaction_by_hash(&self, hash: &str)
eth_getTransactionByBlockHashAndIndex	get_transaction_by_block_hash_and_index	Returns information about a transaction by block hash and transaction index position.	client.get_transaction_by_block_hash_and_index(&self, hash: &str, index: u64)
eth_getTransactionByBlockNumberAndIndex	get_transaction_by_block_number_and_index	Returns information about a transaction by block number and transaction index position.	client.get_transaction_by_block_number_and_index(&self, block: BlockTag, index: u64)
eth_getBlockReceipts	get_block_receipts	Returns all transaction receipts of a block by number.	client.get_block_receipts(&self, block: BlockTag)
eth_getLogs	get_logs	Returns an array of logs matching the filter.	client.get_logs(&self, filter: Filter)
eth_getFilterChanges	get_filter_changes	Polling method for a filter, which returns an array of logs which occurred since last poll.	client.get_filter_changes(&self, filter_id: H256)
eth_getFilterLogs	get_filter_logs	Returns an array of all logs matching filter with given id.	client.get_filter_logs(&self, filter_id: H256)
eth_getStorageAt	get_storage_at	Returns the value from a storage position at a given address.	client.get_storage_at(&self, address: &str, slot: H256, block: BlockTag)
eth_getBlockTransactionCountByHash	get_block_transaction_count_by_hash	Returns the number of transactions in a block from a block matching the transaction hash.	client.get_block_transaction_count_by_hash(&self, hash: &str)
eth_getBlockTransactionCountByNumber	get_block_transaction_count_by_number	Returns the number of transactions in a block from a block matching the block number.	client.get_block_transaction_count_by_number(&self, block: BlockTag)
eth_coinbase	get_coinbase	Returns the client coinbase address.	client.get_coinbase(&self)
eth_syncing	syncing	Returns an object with data about the sync status or false.	client.syncing(&self)
web3_clientVersion	client_version	Returns the current version of the chain client.	client.client_version(&self)