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https://github.com/status-im/nimbus-eth1.git
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48 lines
1.7 KiB
Nim
48 lines
1.7 KiB
Nim
# Nimbus
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# Copyright (c) 2018 Status Research & Development GmbH
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# Licensed under either of
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# * Apache License, version 2.0, ([LICENSE-APACHE](LICENSE-APACHE))
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# * MIT license ([LICENSE-MIT](LICENSE-MIT))
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# at your option.
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# This file may not be copied, modified, or distributed except according to
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# those terms.
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import strutils, nimcrypto, eth_common, stint, eth_trie/[memdb, types]
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import
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json_rpc/server, ../vm_state, ../logging, ../db/[db_chain, state_db],
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../constants, ../config
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proc setupCommonRPC*(server: RpcServer) =
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server.rpc("web3_clientVersion") do() -> string:
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result = NimbusIdent
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server.rpc("web3_sha3") do(data: string) -> string:
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var rawdata = nimcrypto.fromHex(data)
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result = "0x" & $keccak_256.digest(rawdata)
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server.rpc("eth_getBalance") do(address: array[20, byte], quantityTag: string) -> int:
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## Returns the balance of the account of given address.
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##
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## data: address to check for balance.
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## quantityTag: integer block number, or the string "latest", "earliest" or "pending", see the default block parameter.
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## Returns integer of the current balance in wei.
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var blockNum: BlockNumber
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let qt = quantityTag.toLowerAscii
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case quantityTag
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of "latest": discard # TODO: Get latest block
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of "earliest": blockNum = GENESIS_BLOCK_NUMBER
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of "pending": discard # TODO
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else:
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# Note: `fromHex` can raise ValueError on bad data.
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blockNum = stint.fromHex(UInt256, quantityTag)
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let header = BlockHeader(blockNumber: blockNum)
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var
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memDb = newMemDB()
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vmState = newBaseVMState(header, newBaseChainDB(trieDB memDb))
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let
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account_db = vmState.readOnlyStateDb
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balance = account_db.get_balance(address)
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return balance.toInt
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