[ETCM-110] Add eth_chainId RPC method #683
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kapke
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mmrozek
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Sep 21, 2020
| implicit val eth_chainId = new JsonDecoder[ChainIdRequest] with JsonEncoder[ChainIdResponse] { | ||
| def decodeJson(params: Option[JArray]) = params match { | ||
| case None | Some(JArray(Nil)) => Right(ChainIdRequest()) | ||
| case other => Left(InvalidParams("eth_chainId method does not take params")) |
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I realized that other parameterless methods don't check if params is empty. Maybe we could improve that in this PR. WDYT?
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If only @pslaski agrees (this will result in quite huge PR due to formatting)
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this PR is already huge so go for it ;)
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| @@ -23,11 +25,32 @@ object JsonRpcController { | |||
| trait JsonDecoder[T] { | |||
| def decodeJson(params: Option[JArray]): Either[JsonRpcError, T] | |||
| } | |||
| object JsonDecoder { | |||
| abstract class NoParamsDecoder[T](request: => T) extends JsonDecoder[T] { | |||
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@pslaski From what I've checked there usually are such tests for happy path and I think it's enough since the behavior is uniform now across whole RPC API |
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Description
According to Ethereum RPC Spec, Mantis lacks
eth_chainIdmethod, which makes it much harder to issue transactions from Luna.PS. This PR got so big due to auto-formatting. Changes crucial for this task are really minimal (test for eth service, test for rpc controller, insomnia entry, controller entry, json codec, eth service method).
Testing
eth_chainIdin Insomnia should return configured value in hex format according to spec (https://playground.open-rpc.org/?schemaUrl=https://raw.githubusercontent.com/etclabscore/ethereum-json-rpc-specification/master/openrpc.json&uiSchema%5BappBar%5D%5Bui:input%5D=false)