chore: upgrade eslint

.vscode/settings.json

@@ -19,7 +19,6 @@
     "**/.pnp.*": true
   },
   "eslint.nodePath": ".yarn/sdks",
-  "prettier.prettierPath": ".yarn/sdks/prettier/index.js",
   "typescript.tsdk": ".yarn/sdks/typescript/lib",
   "typescript.enablePromptUseWorkspaceTsdk": true,
   "yaml.schemas": {

eslint.config.mjs

@@ -0,0 +1,70 @@
+import { fixupConfigRules, fixupPluginRules } from '@eslint/compat';
+import typescriptEslint from '@typescript-eslint/eslint-plugin';
+import prettier from 'eslint-plugin-prettier';
+import unicorn from 'eslint-plugin-unicorn';
+import tsParser from '@typescript-eslint/parser';
+import path from 'node:path';
+import { fileURLToPath } from 'node:url';
+import js from '@eslint/js';
+import { FlatCompat } from '@eslint/eslintrc';
+
+const __filename = fileURLToPath(import.meta.url);
+const __dirname = path.dirname(__filename);
+const compat = new FlatCompat({
+  baseDirectory: __dirname,
+  recommendedConfig: js.configs.recommended,
+  allConfig: js.configs.all,
+});
+
+export default [
+  {
+    ignores: [
+      '**/dist',
+      '**/node_modules',
+      '**/.eslintrc.js',
+      '**/jest.config.js',
+      '**/babel.config.js',
+    ],
+  },
+  ...fixupConfigRules(
+    compat.extends(
+      'eslint:recommended',
+      'plugin:@typescript-eslint/eslint-recommended',
+      'plugin:@typescript-eslint/recommended',
+      'plugin:import/recommended',
+      'prettier',
+      'plugin:unicorn/recommended',
+    ),
+  ),
+  {
+    plugins: {
+      '@typescript-eslint': fixupPluginRules(typescriptEslint),
+      prettier,
+      unicorn: fixupPluginRules(unicorn),
+    },
+
+    languageOptions: {
+      parser: tsParser,
+      ecmaVersion: 'latest',
+      sourceType: 'module',
+    },
+
+    rules: {
+      'no-console': 'off',
+      'unicorn/no-negated-condition': 'off',
+      'unicorn/no-null': 'off',
+      'unicorn/prefer-type-error': 'off',
+      'no-extra-boolean-cast': 'off',
+      'newline-after-var': ['error', 'always'],
+      'arrow-parens': [2, 'as-needed'],
+      'prettier/prettier': 2,
+      eqeqeq: ['error', 'always'],
+      'unicorn/prevent-abbreviations': 'off',
+      'unicorn/prefer-node-protocol': 0,
+      'import/extensions': ['error', 'always'],
+      'import/no-unresolved': 'off',
+      'unicorn/no-anonymous-default-export': 'off',
+      'unicorn/consistent-existence-index-check': 'off',
+    },
+  },
+];

package.json

@@ -37,6 +37,9 @@
   "devDependencies": {
     "@esbuild/darwin-arm64": "npm:0.19.8",
     "@esbuild/linux-x64": "npm:0.19.8",
+    "@eslint/compat": "^1.2.1",
+    "@eslint/eslintrc": "^3.1.0",
+    "@eslint/js": "^9.13.0",
     "@rollup/rollup-darwin-arm64": "npm:4.6.1",
     "@rollup/rollup-linux-x64-gnu": "npm:4.6.1",
     "@types/express": "^4.17.17",
@@ -45,15 +48,15 @@
     "@types/sinon": "^10.0.15",
     "@types/uuid": "^9.0.1",
     "@types/ws": "^8.5.4",
-    "@typescript-eslint/eslint-plugin": "^6.2.0",
-    "@typescript-eslint/parser": "^6.2.0",
+    "@typescript-eslint/eslint-plugin": "^8.11.0",
+    "@typescript-eslint/parser": "^8.11.0",
     "c8": "^7.13.0",
-    "eslint": "^8.45.0",
-    "eslint-config-prettier": "8.8.0",
-    "eslint-plugin-import": "^2.27.5",
-    "eslint-plugin-prettier": "5.0.0",
-    "eslint-plugin-promise": "^6.1.1",
-    "eslint-plugin-unicorn": "^48.0.1",
+    "eslint": "^9.13.0",
+    "eslint-config-prettier": "^9.1.0",
+    "eslint-plugin-import": "^2.31.0",
+    "eslint-plugin-prettier": "^5.2.1",
+    "eslint-plugin-promise": "^7.1.0",
+    "eslint-plugin-unicorn": "^56.0.0",
     "nock": "^13.3.2",
     "prettier": "^3.0.0",
     "rimraf": "^5.0.1",
@@ -68,4 +71,4 @@
   "type": "module",
   "main": "dist/server.js",
   "packageManager": "[email protected]"
-}
+}

src/server.ts

@@ -103,7 +103,6 @@ const heartbeat = (ws: Server.Ws) => {
   ws.isAlive = true;
 };
 
-// eslint-disable-next-line @typescript-eslint/no-empty-function
 function noop() {}
 
 // ping all clients every 30s to keep connection alive

src/utils/address.ts

@@ -134,7 +134,11 @@ export const addressesToUtxos = async (
 
   for (const addressUtxos of allUtxos)
     for (const utxo of addressUtxos)
-      for (const a of utxo.amount) a.unit !== 'lovelace' ? assets.add(a.unit) : undefined;
+      for (const a of utxo.amount) {
+        if (a.unit !== 'lovelace') {
+          assets.add(a.unit);
+        }
+      }
 
   const tokenMetadata = await Promise.all(
     [...assets].map(a => assetMetadataLimiter.add(() => getAssetData(a), { throwOnTimeout: true })),
@@ -290,7 +294,7 @@ export const getStakingData = async (stakeAddress: string): Promise<Addresses.St
       return {
         rewards: '0',
         isActive: false,
-        // eslint-disable-next-line unicorn/no-null
+
         poolId: null,
       };
     }

src/utils/logger.ts

@@ -48,8 +48,7 @@ export const getLogger = (options: LoggerOptions): Logger => {
 
   const getMethod = (methodLevel: Level) => {
     return requestedLevel > LevelMap[methodLevel]
-      ? // eslint-disable-next-line @typescript-eslint/no-empty-function
-        () => {}
+      ? () => {}
       : (...arguments_: unknown[]) => onMessage({ ...options, level: methodLevel }, ...arguments_);
   };