chore(release): 0.1.0-develop.1 [skip ci]

# [0.1.0-develop.1](https://git.lumeweb.com/LumeWeb/kernel-eth/compare/v0.0.1...v0.1.0-develop.1) (2023-10-12)

### Bug Fixes

* add synced listener on eth client to flag the synced status ([5f64664](5f64664676))
* createEthClient needs logging functions and sync delay passed ([0324700](032470029c))

### Features

* add caching of the last consensus update via leveldb ([9f35ea7](9f35ea7f9b))
* add name api ([9370003](9370003a59))
* add register method for network registry ([e7d85a2](e7d85a2af4))
* add status api ([2a079f3](2a079f340f))
* Update to capella fork ([e62eadd](e62eadd436))

.github/workflows/ci.yml

@@ -0,0 +1,13 @@
+name: Build/Publish
+
+on:
+    push:
+        branches:
+            - master
+            - develop
+            - develop-*
+
+jobs:
+    main:
+        uses: lumeweb/github-node-deploy-workflow/.github/workflows/main.yml@master
+        secrets: inherit

.presetterrc.json

@@ -0,0 +1,28 @@
+{
+    "preset": [
+        "@lumeweb/presetter-kernel-module-preset"
+    ],
+    "config": {
+        "tsconfig": {
+            "compilerOptions": {
+                "module": "nodenext"
+            }
+        },
+        "vite": {
+            "resolve": {
+                "alias": {
+                    "ethereum-cryptography/secp256k1": "ethereum-cryptography/secp256k1.js",
+                    "ethereum-cryptography/keccak": "ethereum-cryptography/keccak.js",
+                    "ethereum-cryptography/utils": "ethereum-cryptography/utils.js",
+                    "ethereum-cryptography/sha256": "ethereum-cryptography/sha256.js",
+                    "ethereum-cryptography/ripemd160": "ethereum-cryptography/ripemd160.js",
+                    "bigint-mod-arith": "@lumeweb/bigint-mod-arith",
+                    "bigint-crypto-utils": "@lumeweb/bigint-crypto-utils"
+                }
+            },
+            "optimize": {
+                "./blst-native/index.js": "export default undefined;"
+            }
+        }
+    }
+}

CHANGELOG.md

@@ -0,0 +1,16 @@
+# [0.1.0-develop.1](https://git.lumeweb.com/LumeWeb/kernel-eth/compare/v0.0.1...v0.1.0-develop.1) (2023-10-12)
+
+
+### Bug Fixes
+
+* add synced listener on eth client to flag the synced status ([5f64664](https://git.lumeweb.com/LumeWeb/kernel-eth/commit/5f64664676babae7065dc7560a5db780799c2c9e))
+* createEthClient needs logging functions and sync delay passed ([0324700](https://git.lumeweb.com/LumeWeb/kernel-eth/commit/032470029cec8266b925ddb689512e18a580183b))
+
+
+### Features
+
+* add caching of the last consensus update via leveldb ([9f35ea7](https://git.lumeweb.com/LumeWeb/kernel-eth/commit/9f35ea7f9b31430a5840dc431fadd4cfd560759a))
+* add name api ([9370003](https://git.lumeweb.com/LumeWeb/kernel-eth/commit/9370003a59d1dd0c343f6817c2940f7309703854))
+* add register method for network registry ([e7d85a2](https://git.lumeweb.com/LumeWeb/kernel-eth/commit/e7d85a2af4c2325aae8b0a0e4c327a8f121fae6a))
+* add status api ([2a079f3](https://git.lumeweb.com/LumeWeb/kernel-eth/commit/2a079f340f5f1a61809aebf92ea038a97665684a))
+* Update to capella fork ([e62eadd](https://git.lumeweb.com/LumeWeb/kernel-eth/commit/e62eadd43617d4da0903d2d60d7c057966c5c71e))

LICENSE

@@ -0,0 +1,21 @@
+MIT License
+
+Copyright (c) 2023 Hammer Technologies LLC
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.

build.js

@@ -1,48 +0,0 @@
-import esbuild from "esbuild";
-import { readFile } from "fs/promises";
-import path from "path";
-
-await esbuild.build({
-  entryPoints: ["src/index.ts"],
-  outfile: "dist/index.js",
-  format: "esm",
-  bundle: true,
-  legalComments: "external",
-  define: {
-    global: "self",
-    "import.meta": "true",
-  },
-  plugins: [
-    {
-      name: "base64",
-      setup(build) {
-        build.onResolve({ filter: /\?base64$/ }, (args) => {
-          return {
-            path: args.path,
-            pluginData: {
-              isAbsolute: path.isAbsolute(args.path),
-              resolveDir: args.resolveDir,
-            },
-            namespace: "base64-loader",
-          };
-        });
-        build.onLoad(
-          { filter: /\?base64$/, namespace: "base64-loader" },
-          async (args) => {
-            const fullPath = args.pluginData.isAbsolute
-              ? args.path
-              : path.join(args.pluginData.resolveDir, args.path);
-            return {
-              contents: Buffer.from(
-                await readFile(fullPath.replace(/\?base64$/, ""))
-              ).toString("base64"),
-              loader: "text",
-            };
-          }
-        );
-      },
-    },
-  ],
-});
-
-export {};

package.json

@@ -1,30 +1,32 @@
 {
     "name": "@lumeweb/kernel-eth",
-  "version": "0.1.0",
+    "version": "0.1.0-develop.1",
     "license": "MIT",
     "type": "module",
-  "scripts": {
-    "build-script": "tsc --project tsconfig.build.json && mv dist-build/build.js dist-build/build.mjs",
-    "compile": "npm run build-script && rimraf node_modules/@lumeweb/dht-rpc-client/node_modules node_modules/@lumeweb/kernel-dht-client/node_modules/libkmodule && node build.js",
-    "build": "npm run compile && node ./dist-build/build.mjs dev"
+    "readme": "ERROR: No README data found!",
+    "repository": {
+        "type": "git",
+        "url": "gitea@git.lumeweb.com:LumeWeb/kernel-eth.git"
     },
-  "dependencies": {
-    "@lumeweb/kernel-rpc-client": "git+https://git.lumeweb.com/LumeWeb/kernel-rpc-client.git",
-    "libkmodule": "^0.2.53",
-    "yaml": "^2.2.1"
+    "scripts": {
+        "prepare": "presetter bootstrap",
+        "build": "run build",
+        "semantic-release": "semantic-release",
+        "postinstall": "patch-package"
     },
     "devDependencies": {
-    "@lumeweb/interface-relay": "git+https://git.lumeweb.com/LumeWeb/interface-relay.git",
-    "@scure/bip39": "^1.2.0",
-    "@skynetlabs/skynet-nodejs": "^2.9.0",
-    "@types/node": "^18.15.9",
-    "@types/read": "^0.0.29",
-    "buffer": "^6.0.3",
-    "cli-progress": "^3.12.0",
-    "esbuild": "^0.17.13",
-    "esbuild-plugin-wasm": "^1.0.0",
-    "prettier": "^2.8.7",
-    "read": "^2.0.0",
-    "typescript": "^5.0.2"
+        "@lumeweb/presetter-kernel-module-preset": "0.1.0-develop.42",
+        "@rollup/plugin-alias": "^5.0.0",
+        "patch-package": "^7.0.0",
+        "rollup-plugin-ignore-import": "^1.3.2"
+    },
+    "dependencies": {
+        "@lumeweb/bigint-crypto-utils": "1.0.0",
+        "@lumeweb/kernel-network-registry-client": "^0.1.0-develop.10",
+        "@lumeweb/kernel-rpc-client": "0.0.2-develop.17",
+        "@lumeweb/libethsync": "0.1.0-develop.61",
+        "@lumeweb/libkernel": "0.1.0-develop.66",
+        "level": "^8.0.0",
+        "p-defer": "^4.0.0"
     }
 }

patches/@chainsafe+bls+7.1.1.patch

@@ -0,0 +1,89 @@
+diff --git a/node_modules/@chainsafe/bls/lib/getImplementation.js b/node_modules/@chainsafe/bls/lib/getImplementation.js
+index 9137cd4..ba8de8a 100644
+--- a/node_modules/@chainsafe/bls/lib/getImplementation.js
++++ b/node_modules/@chainsafe/bls/lib/getImplementation.js
+@@ -3,7 +3,7 @@ const isNode = Object.prototype.toString.call(typeof process !== "undefined" ? p
+ export async function getImplementation(impl = "herumi") {
+     switch (impl) {
+         case "herumi": {
+-            return (await import("./herumi/index.js")).bls;
++            return (await import("./herumi/index.js")).bls();
+         }
+         case "blst-native":
+             // Lazy import native bindings to prevent automatically importing binding.node files
+diff --git a/node_modules/@chainsafe/bls/lib/herumi/index.js b/node_modules/@chainsafe/bls/lib/herumi/index.js
+index 4ed8fdd..f979984 100644
+--- a/node_modules/@chainsafe/bls/lib/herumi/index.js
++++ b/node_modules/@chainsafe/bls/lib/herumi/index.js
+@@ -1,16 +1,20 @@
+-import { SecretKey } from "./secretKey.js";
+-import { PublicKey } from "./publicKey.js";
+-import { Signature } from "./signature.js";
+-import { init, destroy } from "./context.js";
+-import { functionalInterfaceFactory } from "../functional.js";
+-await init();
+-export * from "../constants.js";
+-export { SecretKey, PublicKey, Signature, init, destroy };
+-export const bls = {
+-    implementation: "herumi",
+-    SecretKey,
+-    PublicKey,
+-    Signature,
+-    ...functionalInterfaceFactory({ SecretKey, PublicKey, Signature }),
+-};
+-export default bls;
++import { SecretKey } from './secretKey.js'
++import { PublicKey } from './publicKey.js'
++import { Signature } from './signature.js'
++import { init, destroy } from './context.js'
++import { functionalInterfaceFactory } from '../functional.js'
++
++export * from '../constants.js'
++export { SecretKey, PublicKey, Signature, init, destroy }
++
++export const bls = async () => {
++    await init()
++    return {
++        implementation: 'herumi',
++        SecretKey,
++        PublicKey,
++        Signature,
++        ...functionalInterfaceFactory({ SecretKey, PublicKey, Signature }),
++    }
++}
++export default bls
+diff --git a/node_modules/@chainsafe/bls/lib/index.d.ts b/node_modules/@chainsafe/bls/lib/index.d.ts
+index 35a9432..097a938 100644
+--- a/node_modules/@chainsafe/bls/lib/index.d.ts
++++ b/node_modules/@chainsafe/bls/lib/index.d.ts
+@@ -1,3 +1,3 @@
+ import type { IBls } from "./types.js";
+-declare let bls: IBls;
++export declare const bls: () => Promise<IBls>;
+ export default bls;
+diff --git a/node_modules/@chainsafe/bls/lib/index.js b/node_modules/@chainsafe/bls/lib/index.js
+index c2a5bdf..9572018 100644
+--- a/node_modules/@chainsafe/bls/lib/index.js
++++ b/node_modules/@chainsafe/bls/lib/index.js
+@@ -1,11 +1,14 @@
+ import { getImplementation } from "./getImplementation.js";
+ // Thanks https://github.com/iliakan/detect-node/blob/master/index.esm.js
+ const isNode = Object.prototype.toString.call(typeof process !== "undefined" ? process : 0) === "[object process]";
+-let bls;
+-try {
+-    bls = await getImplementation(isNode ? "blst-native" : "herumi");
+-}
+-catch (e) {
+-    bls = await getImplementation("herumi");
+-}
++export const bls = async () => {
++    let bls;
++    try {
++        bls = await getImplementation(isNode ? "blst-native" : "herumi");
++    }
++    catch (e) {
++        bls = await getImplementation("herumi");
++    }
++    return bls;
++};
+ export default bls;

src-build/build.ts

@@ -1,218 +0,0 @@
-// This is the standard build script for a kernel module.
-
-import * as fs from "fs";
-import read from "read";
-import * as bip39 from "@scure/bip39";
-import { wordlist } from "@scure/bip39/wordlists/english.js";
-//@ts-ignore
-import { SkynetClient } from "@skynetlabs/skynet-nodejs";
-
-// Helper variables to make it easier to return empty values alongside errors.
-const nu8 = new Uint8Array(0);
-const nkp = {
-  publicKey: nu8,
-  secretKey: nu8,
-};
-
-// readFile is a wrapper for fs.readFileSync that handles the try-catch for the
-// caller.
-function readFile(fileName: string): [string, string | null] {
-  try {
-    let data = fs.readFileSync(fileName, "utf8");
-    return [data, null];
-  } catch (err) {
-    return ["", "unable to read file: " + JSON.stringify(err)];
-  }
-}
-
-// readFileBinary is a wrapper for fs.readFileSync that handles the try-catch
-// for the caller.
-function readFileBinary(fileName: string): [Uint8Array, string | null] {
-  try {
-    let data = fs.readFileSync(fileName, null);
-    return [data, null];
-  } catch (err) {
-    return [nu8, "unable to read file: " + JSON.stringify(err)];
-  }
-}
-
-// writeFile is a wrapper for fs.writeFileSync which handles the try-catch in a
-// non-exception way.
-function writeFile(fileName: string, fileData: string): string | null {
-  try {
-    fs.writeFileSync(fileName, fileData);
-    return null;
-  } catch (err) {
-    return "unable to write file: " + JSON.stringify(err);
-  }
-}
-
-// handlePass handles all portions of the script that occur after the password
-// has been requested. If no password needs to be requested, handlePass will be
-// called with a null input. We need to structure the code this way because the
-// password reader is async and we can only access the password when using a
-// callback.
-function handlePass(password: string) {
-  try {
-    // If we are running prod and the seed file does not exist, we
-    // need to confirm the password and also warn the user to use a
-    // secure password.
-    if (!fs.existsSync(seedFile) && process.argv[2] === "prod") {
-      // The file does not exist, we need to confirm the
-      // password.
-      console.log();
-      console.log(
-        "No production entry found for module. Creating new production module..."
-      );
-      console.log(
-        "If someone can guess the password, they can push arbitrary changes to your module."
-      );
-      console.log("Please use a secure password.");
-      console.log();
-      read(
-        { prompt: "Confirm Password: ", silent: true },
-        function (err: any, confirmPassword: string) {
-          if (err) {
-            console.error("unable to fetch password:", err);
-            process.exit(1);
-          }
-          if (password !== confirmPassword) {
-            console.error("passwords do not match");
-            process.exit(1);
-          }
-          handlePassConfirm(moduleSalt, password);
-        }
-      );
-    } else {
-      // If the seed file does exist, or if we are using dev,
-      // there's no need to confirm the password but we do
-      // need to pass the logic off to the handlePassConfirm
-      // callback.
-      handlePassConfirm(moduleSalt, password);
-    }
-  } catch (err) {
-    console.error("Unable to read seedFile:", err);
-    process.exit(1);
-  }
-}
-
-// handlePassConfirm handles the full script after the confirmation password
-// has been provided. If not confirmation password is needed, this function
-// will be called anyway using the unconfirmed password as input.
-function handlePassConfirm(seed: string, password: string) {
-  // Create the seedFile if it does not exist. For dev we just save the
-  // seed to disk outright, because this is a dev build and therefore not
-  // security sensitive. Also the dev seed does not get pushed to the
-  // github repo.
-  //
-  // For prod, we use the seed to create a new seed (called the shield)
-  // which allows us to verify that the developer has provided the right
-  // password when deploying the module. The shield does get pushed to
-  // the github repo so that the production module is the same on all
-  // devices.
-  if (!fs.existsSync(seedFile) && process.argv[2] !== "prod") {
-    // Generate the seed phrase and write it to the file.
-    let seedPhrase = bip39.generateMnemonic(wordlist);
-    let errWF = writeFile(seedFile, seedPhrase);
-    if (errWF !== null) {
-      console.error("unable to write file:", errWF);
-      process.exit(1);
-    }
-  } else if (!fs.existsSync(seedFile) && process.argv[2] === "prod") {
-    // Generate the seed phrase.
-    let seedPhrase = bip39.generateMnemonic(wordlist);
-    // Write the registry link to the file.
-  }
-
-  // Load or verify the seed. If this is prod, the password is used to
-  // create and verify the seed. If this is dev, we just load the seed
-  // with no password.
-  let seedPhrase: string;
-  let registryLink: string;
-  if (process.argv[2] === "prod") {
-    // Generate the seed phrase from the password.
-    seedPhrase = bip39.generateMnemonic(wordlist);
-  } else {
-    let [sp, errRF] = readFile(seedFile);
-    if (errRF !== null) {
-      console.error("unable to read seed phrase for dev command from disk");
-      process.exit(1);
-    }
-    seedPhrase = sp;
-  }
-
-  let metadata = {
-    Filename: "index.js",
-  };
-  const client = new SkynetClient("https://web3portal.com");
-  client
-    .uploadFile("dist/index.js")
-    .then((result: any) => {
-      console.log("Immutable Link for module:", result);
-    })
-    .catch((err: any) => {
-      console.error("unable to upload file", err);
-      process.exit(1);
-    });
-}
-
-// Add a newline for readability.
-console.log();
-
-// Check for a 'dev' or 'prod' input to the script.
-if (process.argv.length !== 3) {
-  console.error("need to provide either 'dev' or 'prod' as an input");
-  process.exit(1);
-}
-
-// Create the build folder if it does not exist.
-if (!fs.existsSync("build")) {
-  fs.mkdirSync("build");
-}
-
-// Determine the seed file.
-let seedFile: string;
-if (process.argv[2] === "prod") {
-  seedFile = "module-skylink";
-} else if (process.argv[2] === "dev") {
-  seedFile = "build/dev-seed";
-} else {
-  console.error("need to provide either 'dev' or 'prod' as an input");
-  process.exit(1);
-}
-
-// If doing a prod deployment, check whether the salt file exists. If it does
-// not, create it.
-let moduleSalt: string;
-if (!fs.existsSync(".module-salt")) {
-  moduleSalt = bip39.generateMnemonic(wordlist);
-  let errWF = writeFile(".module-salt", moduleSalt);
-  if (errWF !== null) {
-    console.error("unable to write module salt file:", errWF);
-    process.exit(1);
-  }
-} else {
-  let [ms, errRF] = readFile(".module-salt");
-  if (errRF !== null) {
-    console.error("unable to read moduleSalt");
-    process.exit(1);
-  }
-  ms = ms.replace(/\n$/, "");
-  moduleSalt = ms;
-}
-
-// Need to get a password if this is a prod build.
-if (process.argv[2] === "prod") {
-  read(
-    { prompt: "Password: ", silent: true },
-    function (err: any, password: string) {
-      if (err) {
-        console.error("unable to fetch password:", err);
-        process.exit(1);
-      }
-      handlePass(password);
-    }
-  );
-} else {
-  handlePass("");
-}

src/index.ts

@@ -1,28 +1,47 @@
-import { ActiveQuery, addHandler, handleMessage } from "libkmodule";
-import { createClient, RpcNetwork } from "@lumeweb/kernel-rpc-client";
-import init, { Client } from "../wasm/helios_ts.js";
-// @ts-ignore
-import wasm from "../wasm/helios_ts_bg.wasm?base64";
-import { Buffer } from "buffer";
-import { RPCResponse } from "@lumeweb/interface-relay";
-import { ConsensusRequest, ExecutionRequest } from "./types.js";
-
-const CHECKPOINT =
-  "0x694433ba78dd08280df68d3713c0f79d668dbee9e0922ec2346fcceb1dc3daa9";
+import {
+  ActiveQuery,
+  addHandler,
+  handleMessage,
+  log,
+  logErr,
+} from "@lumeweb/libkernel/module";
+import {
+  createClient as createRpcClient,
+  RpcNetwork,
+} from "@lumeweb/kernel-rpc-client";
+import { createClient as createNetworkRegistryClient } from "@lumeweb/kernel-network-registry-client";
+import {
+  Client as EthClient,
+  ConsensusCommitteeUpdateRequest,
+  createDefaultClient as createEthClient,
+} from "@lumeweb/libethsync/client";
+import * as capella from "@lodestar/types/capella";
+import defer from "p-defer";
+import { Level } from "level";
 
 onmessage = handleMessage;
 
-let moduleReadyResolve: Function;
-let moduleReady: Promise<void> = new Promise((resolve) => {
-  moduleReadyResolve = resolve;
+const TYPES = ["blockchain"];
+const networkRegistry = createNetworkRegistryClient();
+
+const moduleReadyDefer = defer();
+const clientInitDefer = defer();
+
+let client: EthClient;
+let rpc: RpcNetwork;
+const db = new Level<number | string, Uint8Array>("consensus", {
+  valueEncoding: "buffer",
 });
 
-let client: Client;
-let rpc: RpcNetwork;
-
-addHandler("presentSeed", handlePresentSeed);
+addHandler("presentKey", handlePresentKey);
+addHandler("register", handleRegister);
+addHandler("status", handleStatus, { receiveUpdates: true });
+addHandler("name", handleName);
+addHandler("ready", handleReady);
 
 [
+  "eth_accounts",
+  "eth_requestAccounts",
   "eth_getBalance",
   "eth_chainId",
   "eth_blockNumber",
@@ -40,176 +59,191 @@ addHandler("presentSeed", handlePresentSeed);
   "eth_getLogs",
   "net_version",
 ].forEach((rpcMethod) => {
-  addHandler(rpcMethod, (aq: ActiveQuery) => {
-    aq.callerInput = aq.callerInput || {};
-    aq.callerInput.method = rpcMethod;
-    handleRpcMethod(aq);
+  addHandler(rpcMethod, async (aq: ActiveQuery) => {
+    aq.callerInput = {
+      params: aq.callerInput || {},
+      method: rpcMethod,
+    };
+    try {
+      const ret = await handleRpcMethod(aq);
+      aq.respond(ret);
+    } catch (e: any) {
+      aq.reject((e as Error).message);
+    }
   });
 });
 
-async function handlePresentSeed() {
+async function handlePresentKey() {
   await setup();
-  moduleReadyResolve();
+  moduleReadyDefer.resolve();
 }
 
 async function handleRpcMethod(aq: ActiveQuery) {
-  await moduleReady;
-  switch (aq.callerInput?.method) {
-    case "eth_getBalance": {
-      return client.get_balance(
-        aq.callerInput?.params[0],
-        aq.callerInput?.params[1]
-      );
+  await moduleReadyDefer.promise;
+  if (!client.isSynced) {
+    await client.sync();
   }
-    case "eth_chainId": {
-      return client.chain_id();
+  return client.rpcCall(aq.callerInput?.method, aq.callerInput?.params);
+}
+
+async function consensusHandler(method: string, data: any) {
+  await rpc.ready;
+
+  while (true) {
+    let query = await rpc.simpleQuery({
+      query: {
+        module: "eth",
+        method,
+        data,
+      },
+      options: {
+        relayTimeout: 30,
+        queryTimeout: 30,
+      },
+    });
+
+    const ret = await query.result;
+
+    if (ret.data) {
+      return ret.data;
     }
-    case "eth_blockNumber": {
-      return client.get_block_number();
   }
-    case "eth_getTransactionByHash": {
-      let tx = await client.get_transaction_by_hash(aq.callerInput?.params[0]);
-      return mapToObj(tx);
-    }
-    case "eth_getTransactionCount": {
-      return client.get_transaction_count(
-        aq.callerInput?.params[0],
-        aq.callerInput?.params[1]
-      );
-    }
-    case "eth_getBlockTransactionCountByHash": {
-      return client.get_block_transaction_count_by_hash(
-        aq.callerInput?.params[0]
-      );
-    }
-    case "eth_getBlockTransactionCountByNumber": {
-      return client.get_block_transaction_count_by_number(
-        aq.callerInput?.params[0]
-      );
-    }
-    case "eth_getCode": {
-      return client.get_code(
-        aq.callerInput?.params[0],
-        aq.callerInput?.params[1]
-      );
-    }
-    case "eth_call": {
-      return client.call(aq.callerInput?.params[0], aq.callerInput?.params[1]);
-    }
-    case "eth_estimateGas": {
-      return client.estimate_gas(aq.callerInput?.params[0]);
-    }
-    case "eth_gasPrice": {
-      return client.gas_price();
-    }
-    case "eth_maxPriorityFeePerGas": {
-      return client.max_priority_fee_per_gas();
-    }
-    case "eth_sendRawTransaction": {
-      return client.send_raw_transaction(aq.callerInput?.params[0]);
-    }
-    case "eth_getTransactionReceipt": {
-      return client.get_transaction_receipt(aq.callerInput?.params[0]);
-    }
-    case "eth_getLogs": {
-      return client.get_logs(aq.callerInput?.params[0]);
-    }
-    case "net_version": {
-      return client.chain_id();
+}
+
+async function executionHandler(data: Map<string, string | any>) {
+  await rpc.ready;
+  while (true) {
+    let query = await rpc.simpleQuery({
+      query: {
+        module: "eth",
+        method: "execution_request",
+        data,
+      },
+      options: {
+        relayTimeout: 30,
+        queryTimeout: 30,
+      },
+    });
+
+    let ret = await query.result;
+
+    if (ret.data) {
+      return ret.data;
     }
   }
 }
 
 async function setup() {
-  rpc = createClient();
+  rpc = createRpcClient();
+  await db.open();
+  await rpc.ready;
 
-  // @ts-ignore
-  await (
-    await rpc.ready
-  )();
+  client = createEthClient(
+    async (args: ConsensusCommitteeUpdateRequest) => {
+      const updates = await consensusHandler("consensus_updates", args);
 
-  await init(URL.createObjectURL(new Blob([Buffer.from(wasm, "base64")])));
-
-  (self as any).consensus_rpc_handler = async (
-    data: Map<string, string | any>
-  ) => {
-    const method = data.get("method");
-    const path = data.get("path");
-
-    let query;
-    let ret: RPCResponse;
-
-    while (true) {
-      query = await rpc.simpleQuery({
-        query: {
-          module: "eth",
-          method: "consensus_request",
-          data: {
-            method,
-            path,
-          } as ConsensusRequest,
+      return updates
+        .map((u) => new Uint8Array(Object.values(u)))
+        .map((u) => capella.ssz.LightClientUpdate.deserialize(u))
+        .map((u) => capella.ssz.LightClientUpdate.toJson(u));
     },
-        options: {
-          relayTimeout: 10,
-          queryTimeout: 10,
+    executionHandler,
+    async () => {
+      const update = await consensusHandler("consensus_optimistic_update", {});
+
+      return capella.ssz.LightClientOptimisticUpdate.deserialize(
+        new Uint8Array(Object.values(update)),
+      );
     },
+    log,
+    logErr,
+    500,
+  );
+
+  let lastUpdate = 0;
+
+  client.store.on("set", async (period: number, update: Uint8Array) => {
+    if (period < lastUpdate) {
+      return;
+    }
+    await db.put("latest", update);
+    lastUpdate = period;
   });
 
-      ret = await query.result;
-      if (ret?.data) {
-        break;
-      }
-    }
+  clientInitDefer.resolve();
 
-    if (path.startsWith("/eth/v1/beacon/light_client/updates")) {
-      return JSON.stringify(ret.data);
-    }
+  let synced = false;
 
-    return JSON.stringify({ data: ret.data });
-  };
-  (self as any).execution_rpc_handler = async (
-    data: Map<string, string | any>
-  ) => {
-    const method = data.get("method");
-    let params = data.get("params");
+  while (!synced) {
+    try {
+      let consensus;
+      try {
+        consensus = await db.get("latest");
+      } catch {}
 
-    if (params === "null") {
-      params = null;
-    }
-
-    let query;
-    let ret: RPCResponse;
-
-    while (true) {
-      query = await rpc.simpleQuery({
-        query: {
-          module: "eth",
-          method: "execution_request",
-          data: {
-            method,
-            params,
-          } as ExecutionRequest,
-        },
-      });
-      ret = await query.result;
-
-      if (ret?.data) {
-        break;
-      }
-    }
-
-    return JSON.stringify(ret.data);
-  };
-
-  client = new Client(CHECKPOINT);
+      if (consensus) {
+        try {
+          await client.syncFromCheckpoint(
+            capella.ssz.LightClientUpdate.deserialize(consensus),
+          );
+        } catch {
           await client.sync();
+        }
+      } else {
+        await client.sync();
+      }
+
+      synced = true;
+    } catch (e) {
+      logErr(e.message);
+    }
+  }
 }
 
-function mapToObj(map: Map<any, any> | undefined): Object | undefined {
-  if (!map) return undefined;
+async function handleReady(aq: ActiveQuery) {
+  await moduleReadyDefer.promise;
 
-  return Array.from(map).reduce((obj: any, [key, value]) => {
-    obj[key] = value;
-    return obj;
-  }, {});
+  aq.respond();
+}
+
+async function handleRegister(aq: ActiveQuery) {
+  await networkRegistry.registerNetwork(TYPES);
+
+  aq.respond();
+}
+
+async function handleStatus(aq: ActiveQuery) {
+  await clientInitDefer.promise;
+  let chainProgress = 0;
+
+  const chainProgressListener = (currentUpdate, totalUpdates) => {
+    chainProgress = Math.round((currentUpdate / totalUpdates) * 100) / 100;
+    sendUpdate();
+  };
+
+  const chainSyncedListener = () => {
+    sendUpdate();
+  };
+
+  client.on("update", chainProgressListener);
+  client.on("synced", chainSyncedListener);
+
+  function sendUpdate() {
+    aq.sendUpdate({
+      sync: Math.floor(chainProgress * 100),
+      peers: 1,
+      ready: client.isSynced,
+    });
+  }
+
+  aq.setReceiveUpdate?.(() => {
+    client.off("update", chainProgressListener);
+    client.off("synced", chainSyncedListener);
+    aq.respond();
+  });
+
+  sendUpdate();
+}
+function handleName(aq: ActiveQuery) {
+  aq.respond("Ethereum");
 }

src/types.ts

@@ -1,8 +0,0 @@
-export interface ConsensusRequest extends RequestInit {
-  path: string;
-}
-
-export interface ExecutionRequest {
-  method: string;
-  params: string;
-}

tsconfig.build.json

@@ -1,14 +0,0 @@
-{
-	"compilerOptions": {
-		"target": "esnext",
-		"module": "esnext",
-		"moduleResolution": "node",
-		"allowSyntheticDefaultImports": true,
-		"declaration": true,
-		"outDir": "./dist-build",
-		"strict": true,
-        "esModuleInterop": true
-	},
-	"include": ["src-build"],
-	"exclude": ["node_modules", "**/__tests__/*"]
-}

tsconfig.json

@@ -1,13 +0,0 @@
-{
-	"compilerOptions": {
-		"target": "esnext",
-		"declaration": true,
-		"moduleResolution": "node",
-		"outDir": "./build",
-		"strict": true,
-        "allowSyntheticDefaultImports": true,
-        "esModuleInterop": true
-    },
-	"include": ["src"],
-	"exclude": ["node_modules", "**/__tests__/*"]
-}