48 lines
1.3 KiB
Nim
48 lines
1.3 KiB
Nim
import std/strutils
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import pkg/stew/byteutils
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import ../../basics
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import ../../errors
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import ../../provider
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import ./conversions
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export errors
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{.push raises:[].}
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type JsonRpcProviderError* = object of ProviderError
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func extractErrorData(json: JsonNode): ?seq[byte] =
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if json.kind == JObject:
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if "message" in json and "data" in json:
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let message = json{"message"}.getStr()
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let hex = json{"data"}.getStr()
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if "reverted" in message and hex.startsWith("0x"):
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if data =? hexToSeqByte(hex).catch:
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return some data
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for key in json.keys:
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if data =? extractErrorData(json{key}):
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return some data
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func new*(_: type JsonRpcProviderError, json: JsonNode): ref JsonRpcProviderError =
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let error = (ref JsonRpcProviderError)()
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if "message" in json:
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error.msg = json{"message"}.getStr
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error.data = extractErrorData(json)
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error
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proc raiseJsonRpcProviderError*(
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message: string) {.raises: [JsonRpcProviderError].} =
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if json =? JsonNode.fromJson(message):
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raise JsonRpcProviderError.new(json)
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else:
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raise newException(JsonRpcProviderError, message)
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template convertError*(body) =
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try:
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body
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except JsonRpcError as error:
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raiseJsonRpcProviderError(error.msg)
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except CatchableError as error:
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raiseJsonRpcProviderError(error.msg)
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