nimbus-eth1/fluffy/rpc/bridge_client.nim

62 lines
2.5 KiB
Nim

# Nimbus
# Copyright (c) 2021-2023 Status Research & Development GmbH
# Licensed and distributed under either of
# * MIT license (license terms in the root directory or at https://opensource.org/licenses/MIT).
# * Apache v2 license (license terms in the root directory or at https://www.apache.org/licenses/LICENSE-2.0).
# at your option. This file may not be copied, modified, or distributed except according to those terms.
{.push raises: [].}
import
std/json,
stew/[byteutils, results],
eth/common, chronos, json_rpc/rpcclient
# Specification of api https://github.com/ethereum/stateless-ethereum-specs/blob/master/portal-bridge-nodes.md#api
# TODO after nethermind plugin will be ready we can get few responses from those endpoints, to create mock client to test if we
# properly parse respones
type
BridgeClient* = RpcClient
from json_rpc/rpcserver import expect
proc parseWitness*(node: JsonNode): Result[seq[seq[byte]], string] =
try:
node.kind.expect(JArray, "blockWitness")
if (node.len > 0):
var rs = newSeqOfCap[seq[byte]](node.len)
for elem in node.elems:
elem.kind.expect(JString, "BlockWitnessArgument")
let hexStr = elem.getStr
let parsedHex = hexToSeqByte(hexStr)
rs.add(parsedHex)
return ok(rs)
else:
return ok(newSeq[seq[byte]](0))
except ValueError as error:
return err(error.msg)
# bridge_waitNewCanonicalChain
proc waitNewCanonicalChain*(bridgeClient: BridgeClient): Future[void] {.async.} = discard
#bridge_getBlockChanges
proc getBlockChanges*(bridgeClient: BridgeClient, blockHash: Hash256): Future[AccessList] {.async.} = discard
#bridge_getItemWitness
proc getItemWitness*(bridgeClient: BridgeClient, blockHash: Hash256, acctAddr: EthAddress, slotAddr: StorageKey):
Future[seq[seq[byte]]] {.async.} = discard
#bridge_getNextItem
proc getNextItem*(bridgeClient: BridgeClient, blockHash: Hash256, acctAddr: EthAddress, slotAddr: StorageKey):
Future[(EthAddress, StorageKey)] {.async.} = discard
# bridge_getBlockWitness
# Returns a list of all RLP-encoded merkle trie values (including contract bytecode) accessed during block execution
proc getBlockWitness*(bridgeClient: BridgeClient, blockNumber: BlockNumber):
Future[Result[seq[seq[byte]], string]] {.async.} =
let result = await bridgeClient.call("bridge_getBlockWitnessblockNumber", %[%blockNumber])
return parseWitness(result)
proc close*(bridgeClient: BridgeClient): Future[void] {.async.} =
await bridgeClient.close()