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https://github.com/logos-storage/nim-ethers.git
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af35395ace
Converts specific errors to RpcNetworkError, which can be bubbled to applications at a higher level and retried on the network (eg with exponential backoff) until resolved or timed out.
54 lines
1.8 KiB
Nim
54 lines
1.8 KiB
Nim
import ../../../examples
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import ../../../../ethers/provider
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import ../../../../ethers/providers/jsonrpc/conversions
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import std/sequtils
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import pkg/stew/byteutils
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import pkg/json_rpc/rpcserver except `%`, `%*`
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import pkg/json_rpc/errors
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import ./mockRpcHttpServer
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export mockRpcHttpServer
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{.push raises: [].}
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type MockRpcHttpServerSubscriptions* = ref object of MockRpcHttpServer
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filters*: seq[string]
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nextGetChangesReturnsError*: bool
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proc new*(_: type MockRpcHttpServerSubscriptions): MockRpcHttpServerSubscriptions {.raises: [JsonRpcError].} =
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let srv = newRpcHttpServer(["127.0.0.1:0"])
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MockRpcHttpServerSubscriptions(filters: @[], srv: srv, nextGetChangesReturnsError: false)
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proc invalidateFilter*(server: MockRpcHttpServerSubscriptions, jsonId: JsonNode) =
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server.filters.keepItIf it != jsonId.getStr
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method start*(server: MockRpcHttpServerSubscriptions) =
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server.registerRpcMethod("eth_newFilter") do(filter: EventFilter) -> string:
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let filterId = "0x" & (array[16, byte].example).toHex
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server.filters.add filterId
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return filterId
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server.registerRpcMethod("eth_newBlockFilter") do() -> string:
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let filterId = "0x" & (array[16, byte].example).toHex
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server.filters.add filterId
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return filterId
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server.registerRpcMethod("eth_getFilterChanges") do(id: string) -> seq[string]:
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if server.nextGetChangesReturnsError:
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raise (ref ApplicationError)(code: -32000, msg: "unknown error")
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if id notin server.filters:
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raise (ref ApplicationError)(code: -32000, msg: "filter not found")
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return @[]
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server.registerRpcMethod("eth_uninstallFilter") do(id: string) -> bool:
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if id notin server.filters:
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raise (ref ApplicationError)(code: -32000, msg: "filter not found")
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server.invalidateFilter(%id)
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return true
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procCall MockRpcHttpServer(server).start()
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