Register Web3Api extension (paritytech#147)

* Remove unnecessary re-export

* Register Web3Api extension

* Add test

* Fix checker

* Prettify

node/rpc/src/lib.rs

@@ -87,11 +87,11 @@ pub fn create_full<C, P, BE>(
 {
 	use substrate_frame_rpc_system::{FullSystem, SystemApi};
 	use pallet_transaction_payment_rpc::{TransactionPayment, TransactionPaymentApi};
-	use frontier_rpc::{EthApiServer, NetApi, NetApiServer, EthPubSubApiServer};
+	use frontier_rpc::{NetApi, NetApiServer, Web3Api, Web3ApiServer};
 	// Our drop in replacements for the Eth APIs. These can be removed after
 	// https://github.com/paritytech/frontier/pull/199 lands
-	use server_hotfixes::EthApi;
-	use pubsub_hotfixes::EthPubSubApi;
+	use server_hotfixes::{EthApi, EthApiServer};
+	use pubsub_hotfixes::{EthPubSubApi, EthPubSubApiServer};
 
 	let mut io = jsonrpc_core::IoHandler::default();
 	let FullDeps {
@@ -129,6 +129,11 @@ pub fn create_full<C, P, BE>(
 			network.clone(),
 		))
 	);
+	io.extend_with(
+		Web3ApiServer::to_delegate(Web3Api::new(
+			client.clone(),
+		))
+	);
 	io.extend_with(
 		EthPubSubApiServer::to_delegate(EthPubSubApi::new(
 			pool.clone(),

node/rpc/src/server_hotfixes.rs

@@ -51,7 +51,7 @@ use frontier_rpc_core::types::{
 use frontier_rpc_primitives::{EthereumRuntimeRPCApi, ConvertTransaction, TransactionStatus};
 use frontier_rpc::{internal_err, error_on_execution_failure, EthSigner};
 
-pub use frontier_rpc_core::{EthApiServer, NetApiServer};
+pub use frontier_rpc_core::EthApiServer;
 use codec::{self, Encode};
 
 pub struct EthApi<B: BlockT, C, P, CT, BE, H: ExHashT> {

tests/tests/test-web3api.ts

@@ -0,0 +1,17 @@
+import { expect } from "chai";
+import { step } from "mocha-steps";
+import { describeWithMoonbeam, customRequest } from "./util";
+
+describeWithMoonbeam("Moonbeam RPC (Web3Api)", `simple-specs.json`, (context) => {
+  step("should get client version", async function () {
+    const version = await context.web3.eth.getNodeInfo();
+    expect(version).to.be.equal("moonbeam-standalone/v6.0/fc-rpc-0.1.0");
+  });
+
+  step("should remote sha3", async function () {
+    const data = context.web3.utils.stringToHex("hello");
+    const hash = await customRequest(context.web3, "web3_sha3", [data]);
+    const local_hash = context.web3.utils.sha3("hello");
+    expect(hash.result).to.be.equal(local_hash);
+  });
+});