116 lines
4.1 KiB
Nim
116 lines
4.1 KiB
Nim
## Fake execution engine API implementation useful for testing beacon node without a running execution node
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# Nimbus
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# Copyright (c) 2022-2024 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
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std/typetraits,
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stew/byteutils,
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json_rpc/[rpcserver, errors],
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web3/[conversions, engine_api_types, eth_api_types],
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chronicles
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proc setupEngineAPI*(server: RpcServer) =
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# https://github.com/ethereum/execution-apis/blob/v1.0.0-beta.3/src/engine/paris.md#engine_newpayloadv1
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# cannot use `params` as param name. see https:#github.com/status-im/nim-json-rpc/issues/128
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server.rpc("engine_newPayloadV1") do(payload: ExecutionPayloadV1) -> PayloadStatusV1:
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info "engine_newPayloadV1",
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number = $(distinctBase payload.blockNumber), hash = payload.blockHash
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return PayloadStatusV1(
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status: PayloadExecutionStatus.syncing,
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)
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# https://github.com/ethereum/execution-apis/blob/v1.0.0-beta.3/src/engine/shanghai.md#engine_newpayloadv2
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server.rpc("engine_newPayloadV2") do(payload: ExecutionPayloadV2) -> PayloadStatusV1:
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info "engine_newPayloadV2", payload
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return PayloadStatusV1(
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status: PayloadExecutionStatus.syncing,
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)
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# https://github.com/ethereum/execution-apis/blob/v1.0.0-beta.3/src/engine/paris.md#engine_getpayloadv1
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server.rpc("engine_getPayloadV1") do(payloadId: PayloadID) -> ExecutionPayloadV1:
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info "engine_getPayloadV1",
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id = payloadId.toHex
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raise (ref InvalidRequest)(
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code: engineApiUnknownPayload,
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msg: "Unkown payload"
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)
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# https://github.com/ethereum/execution-apis/blob/v1.0.0-beta.3/src/engine/paris.md#engine_exchangetransitionconfigurationv1
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server.rpc("engine_exchangeTransitionConfigurationV1") do(conf: TransitionConfigurationV1) -> TransitionConfigurationV1:
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info "engine_exchangeTransitionConfigurationV1",
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ttd = conf.terminalTotalDifficulty,
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number = uint64(conf.terminalBlockNumber),
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blockHash = conf.terminalBlockHash
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return conf
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# https://github.com/ethereum/execution-apis/blob/v1.0.0-beta.3/src/engine/paris.md#engine_forkchoiceupdatedv1
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server.rpc("engine_forkchoiceUpdatedV1") do(
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update: ForkchoiceStateV1,
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payloadAttributes: Option[PayloadAttributesV1]) -> ForkchoiceUpdatedResponse:
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info "engine_forkchoiceUpdatedV1",
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update,
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payloadAttributes
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return ForkchoiceUpdatedResponse(
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payloadStatus: PayloadStatusV1(
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status: PayloadExecutionStatus.syncing))
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# https://github.com/ethereum/execution-apis/blob/v1.0.0-beta.3/src/engine/shanghai.md#engine_forkchoiceupdatedv2
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server.rpc("engine_forkchoiceUpdatedV2") do(
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forkchoiceState: ForkchoiceStateV1, payloadAttributes: Option[PayloadAttributesV2]) -> ForkchoiceUpdatedResponse:
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info "engine_forkchoiceUpdatedV2",
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forkchoiceState, payloadAttributes
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return ForkchoiceUpdatedResponse(
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payloadStatus: PayloadStatusV1(
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status: PayloadExecutionStatus.syncing))
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server.rpc("eth_getBlockByNumber") do(
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quantityTag: string, fullTransactions: bool) -> JsonNode:
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info "eth_getBlockByNumber", quantityTag, fullTransactions
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return if quantityTag == "latest":
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%BlockObject(number: 1000.Quantity)
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else:
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newJObject()
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server.rpc("eth_getBlockByHash") do(
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data: string, fullTransactions: bool) -> BlockObject:
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info "eth_getBlockByHash", data = toHex(data), fullTransactions
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return BlockObject(number: 1000.Quantity)
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server.rpc("eth_chainId") do() -> Quantity:
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info "eth_chainId"
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return 1.Quantity
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when isMainModule:
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let server = newRpcHttpServer(
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# authHooks = @[httpJwtAuthHook, httpCorsHook],
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)
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server.addHttpServer(
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initTAddress("127.0.0.1", 8551),
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maxRequestBodySize = 16 * 1024 * 1024)
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server.setupEngineAPI()
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server.start()
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when compiles(waitFor waitSignal(SIGINT)):
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waitFor waitSignal(SIGINT)
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waitFor server.stop()
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else:
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runForever()
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