Send raw messages to the provider

ethers/providers/jsonrpc.nim

@@ -26,6 +26,12 @@ proc connect(_: type RpcClient, url: string): Future[RpcClient] {.async.} =
 proc new*(_: type JsonRpcProvider, url=defaultUrl): JsonRpcProvider =
   JsonRpcProvider(client: RpcClient.connect(url))
 
+proc send*(provider: JsonRpcProvider,
+           call: string,
+           arguments = %(@[])): Future[JsonNode] {.async.} =
+  let client = await provider.client
+  return await client.call(call, arguments)
+
 proc listAccounts*(provider: JsonRpcProvider): Future[seq[Address]] {.async.} =
   let client = await provider.client
   return await client.eth_accounts()

testmodule/testJsonRpcProvider.nim

@@ -1,3 +1,4 @@
+import std/json
 import pkg/asynctest
 import pkg/chronos
 import pkg/ethers/providers/jsonrpc
@@ -21,3 +22,7 @@ suite "JsonRpcProvider":
   test "lists all accounts":
     let accounts = await provider.listAccounts()
     check accounts.len > 0
+
+  test "sends raw messages to the provider":
+    let response = await provider.send("evm_mine")
+    check response == %"0x0"