feat: add eslint

.eslintignore

@@ -0,0 +1,2 @@
+node_modules
+dist

.eslintrc.json

@@ -0,0 +1,30 @@
+{
+  "extends": [
+    "eslint:recommended",
+    "plugin:@typescript-eslint/recommended",
+    "prettier"
+  ],
+  "parser": "@typescript-eslint/parser",
+  "parserOptions": {
+    "sourceType": "module",
+    "ecmaVersion": 2020
+  },
+  "plugins": ["@typescript-eslint"],
+  "env": {
+    "node": true
+  },
+  "rules": {
+    "@typescript-eslint/ban-ts-comment": [
+      "error",
+      {
+        "ts-ignore": "allow-with-description"
+      }
+    ],
+    "@typescript-eslint/no-unused-vars": ["warn", { "args": "none" }],
+    "no-console": ["error", { "allow": ["info", "warn", "error"] }],
+    "no-constant-binary-expression": "error"
+  },
+  "globals": {
+    "window": true
+  }
+}

lint-staged.config.js

@@ -1,11 +1,13 @@
 export default {
     "src/**/*.{js,ts}": [
-      "prettier --write",
+      "eslint --fix --max-warnings 0",
+      "prettier --write"
     ],
     "examples/**/*.{js,mjs,jsx}": [
-      "prettier --write",
+      "prettier --write"
     ],
 
     "package.json": ["prettier --write"],
+    "src/**/*.ts": () => "tsc --noEmit",
   };
 

package.json

@@ -24,7 +24,12 @@
   },
   "scripts": {
     "prebuild": "yarn run clean",
-    "format": "prettier --check '**/*.(md|json)' 'src/**/*.(js|ts|jsx|tsx)'",
+    "lint": "yarn lint:js && yarn tsc:compile && yarn format:fix",
+    "lint:js": "eslint src --ext .js,.ts --max-warnings 0",
+    "lint:js:fix": "eslint src --ext .js,.ts --fix",
+    "tsc:compile": "tsc --noEmit",
+    "format": "prettier --check '**/*.(md|json)' 'src/**/*.(js|ts)' 'example/**/*.(js|jsx)'",
+    "format:fix": "prettier --loglevel silent --write '**/*.(md|json)' 'src/**/*.(js|ts)' 'example/**/*.(js|jsx)'",
     "prepack": "yarn run build",
     "test": "jest",
     "clean": "rm -rf dist",
@@ -43,8 +48,12 @@
     "@types/crypto-js": "^4.1.1",
     "@types/jest": "^29.4.0",
     "@types/node": "^18.11.0",
+    "@typescript-eslint/eslint-plugin": "^6.3.0",
+    "@typescript-eslint/parser": "^6.3.0",
     "@webbtc/webln-types": "^1.0.11",
     "browserify": "^17.0.0",
+    "eslint": "^8.46.0",
+    "eslint-config-prettier": "^9.0.0",
     "express": "^4.18.2",
     "husky": "^8.0.3",
     "jest": "^29.5.0",