[price_pusher] Add near command (#1306)

* add near command

* add try catch to getPriceFeedsUpdateData and getUpdateFeeEstimate

* add private-key-path optional parameter

* chore: run pre-commit

* fix: make private key optional

* chore: bump version

---------

Co-authored-by: Ali Behjati <bahjatia@gmail.com>

price_pusher/README.md

@@ -133,6 +133,18 @@ npm run start -- sui \
   [--polling-frequency 5] \
   [--num-gas-objects 30]
 
+# For Near
+npm run start -- near \
+  --node-url https://rpc.testnet.near.org \
+  --network testnet \
+  --account-id payer.testnet \
+  --pyth-contract-address pyth-oracle.testnet \
+  --price-service-endpoint "https://hermes-beta.pyth.network" \
+  --price-config-file ./price-config.beta.sample.yaml \
+  [--private-key-path ./payer.testnet.json] \
+  [--pushing-frequency 10] \
+  [--polling-frequency 5]
+
 
 # Or, run the price pusher docker image instead of building from the source
 docker run public.ecr.aws/pyth-network/xc-price-pusher:v<version> -- <above-arguments>

price_pusher/config.near.mainnet.sample.json

@@ -0,0 +1,8 @@
+{
+  "node-url": "https://rpc.mainnet.near.org",
+  "network": "mainnet",
+  "account-id": "payer.near",
+  "pyth-contract-address": "pyth-oracle.near",
+  "price-service-endpoint": "https://hermes.pyth.network",
+  "price-config-file": "./price-config.stable.sample.yaml"
+}

price_pusher/config.near.testnet.sample.json

@@ -0,0 +1,8 @@
+{
+  "node-url": "https://rpc.testnet.near.org",
+  "network": "testnet",
+  "account-id": "payer.testnet",
+  "pyth-contract-address": "pyth-oracle.testnet",
+  "price-service-endpoint": "https://hermes-beta.pyth.network",
+  "price-config-file": "./price-config.beta.sample.yaml"
+}

price_pusher/package.json

@@ -1,6 +1,6 @@
 {
   "name": "@pythnetwork/price-pusher",
-  "version": "6.1.0",
+  "version": "6.2.0",
   "description": "Pyth Price Pusher",
   "homepage": "https://pyth.network",
   "main": "lib/index.js",
@@ -59,6 +59,7 @@
     "@truffle/hdwallet-provider": "^2.1.3",
     "aptos": "^1.8.5",
     "joi": "^17.6.0",
+    "near-api-js": "^3.0.2",
     "web3": "^1.8.1",
     "web3-eth-contract": "^1.8.1",
     "yaml": "^2.1.1",

price_pusher/src/index.ts

@@ -5,6 +5,7 @@ import injective from "./injective/command";
 import evm from "./evm/command";
 import aptos from "./aptos/command";
 import sui from "./sui/command";
+import near from "./near/command";
 
 yargs(hideBin(process.argv))
   .config("config")
@@ -13,4 +14,5 @@ yargs(hideBin(process.argv))
   .command(injective)
   .command(aptos)
   .command(sui)
+  .command(near)
   .help().argv;

price_pusher/src/near/command.ts

@@ -0,0 +1,100 @@
+import { PriceServiceConnection } from "@pythnetwork/price-service-client";
+import * as options from "../options";
+import { readPriceConfigFile } from "../price-config";
+import { PythPriceListener } from "../pyth-price-listener";
+import { Controller } from "../controller";
+import { Options } from "yargs";
+import { NearAccount, NearPriceListener, NearPricePusher } from "./near";
+
+export default {
+  command: "near",
+  describe: "run price pusher for near",
+  builder: {
+    "node-url": {
+      description:
+        "NEAR RPC API url. used to make JSON RPC calls to interact with NEAR.",
+      type: "string",
+      required: true,
+    } as Options,
+    network: {
+      description: "testnet or mainnet.",
+      type: "string",
+      required: true,
+    } as Options,
+    "account-id": {
+      description: "payer account identifier.",
+      type: "string",
+      required: true,
+    } as Options,
+    "private-key-path": {
+      description: "path to payer private key file.",
+      type: "string",
+      required: false,
+    } as Options,
+    ...options.priceConfigFile,
+    ...options.priceServiceEndpoint,
+    ...options.pythContractAddress,
+    ...options.pollingFrequency,
+    ...options.pushingFrequency,
+  },
+  handler: function (argv: any) {
+    // FIXME: type checks for this
+    const {
+      nodeUrl,
+      network,
+      accountId,
+      privateKeyPath,
+      priceConfigFile,
+      priceServiceEndpoint,
+      pythContractAddress,
+      pushingFrequency,
+      pollingFrequency,
+    } = argv;
+
+    const priceConfigs = readPriceConfigFile(priceConfigFile);
+    const priceServiceConnection = new PriceServiceConnection(
+      priceServiceEndpoint,
+      {
+        logger: {
+          // Log only warnings and errors from the price service client
+          info: () => undefined,
+          warn: console.warn,
+          error: console.error,
+          debug: () => undefined,
+          trace: () => undefined,
+        },
+      }
+    );
+
+    const priceItems = priceConfigs.map(({ id, alias }) => ({ id, alias }));
+
+    const pythListener = new PythPriceListener(
+      priceServiceConnection,
+      priceItems
+    );
+
+    const nearAccount = new NearAccount(
+      network,
+      accountId,
+      nodeUrl,
+      privateKeyPath,
+      pythContractAddress
+    );
+
+    const nearListener = new NearPriceListener(nearAccount, priceItems, {
+      pollingFrequency,
+    });
+
+    const nearPusher = new NearPricePusher(nearAccount, priceServiceConnection);
+
+    const controller = new Controller(
+      priceConfigs,
+      pythListener,
+      nearListener,
+      nearPusher,
+      { pushingFrequency }
+    );
+
+    controller.start();
+  },
+};