Add newPayload template for engine_newPayloadV4 and restore eth_getBl…

…ockReceipts callsig (#182)

tests/test_execution_api.nim

@@ -209,6 +209,20 @@ suite "Test eth api":
     check res.isSome
     waitFor client.close()
 
+  test "eth_getBlockReceipts with Quantity param":
+    let client = newRpcHttpClient()
+    waitFor client.connect("http://" & $srv.localAddress()[0])
+    let res = waitFor client.eth_getBlockReceipts(blockId(0))
+    check res.isSome
+    waitFor client.close()
+
+  test "eth_getBlockReceipts with string param":
+    let client = newRpcHttpClient()
+    waitFor client.connect("http://" & $srv.localAddress()[0])
+    let res = waitFor client.eth_getBlockReceipts("latest")
+    check res.isSome
+    waitFor client.close()
+
   waitFor srv.stop()
   waitFor srv.closeWait()
 

web3/eth_api.nim

@@ -39,18 +39,7 @@ createRpcSigsFromNim(RpcClient):
   proc eth_getTransactionCount(data: Address, blockId: BlockIdentifier): Quantity
   proc eth_getBlockTransactionCountByHash(data: Hash32): Quantity
   proc eth_getBlockTransactionCountByNumber(blockId: BlockIdentifier): Quantity
-
-  # TODO: Investigate why nim v2 cannot instantiate generic functions
-  # with oneof params `blockId: BlockIdentifier` and and return type
-  # Opt[seq[ReceiptObject]], this is a regression after all
-  # https://github.com/nim-lang/Nim/issues/23310
-  when false:
-    proc eth_getBlockReceipts(blockId: BlockIdentifier): Opt[seq[ReceiptObject]]
-
-  proc eth_getBlockReceipts(blockId: string): Opt[seq[ReceiptObject]]
-  proc eth_getBlockReceipts(blockId: Quantity): Opt[seq[ReceiptObject]]
-  proc eth_getBlockReceipts(blockId: RtBlockIdentifier): Opt[seq[ReceiptObject]]
-
+  proc eth_getBlockReceipts(blockId: BlockIdentifier): Opt[seq[ReceiptObject]]
   proc eth_getUncleCountByBlockHash(data: Hash32): Quantity
   proc eth_getUncleCountByBlockNumber(blockId: BlockIdentifier): Quantity
   proc eth_getCode(data: Address, blockId: BlockIdentifier): seq[byte]