TypeScript support to ESLint

Author: teogeb

.eslintrc.js

@@ -1,5 +1,8 @@
 module.exports = {
-    parser: 'babel-eslint',
+    parser: '@typescript-eslint/parser',
+    plugins: [
+        '@typescript-eslint'
+    ],
     extends: [
         'streamr-nodejs'
     ],
@@ -35,7 +38,11 @@ module.exports = {
         'lines-between-class-members': 'off',
         'padded-blocks': 'off',
         'no-use-before-define': 'off',
-        'import/order': 'off'
+        'import/order': 'off',
+        'no-shadow': 'off',
+        '@typescript-eslint/no-shadow': 'error',
+        'no-unused-vars': 'off',
+        '@typescript-eslint/no-unused-vars': ['error']
     },
     settings: {
         'import/resolver': {

package-lock.json

@@ -24,7 +24,7 @@
     "prepack": "npm run build",
     "prebuild": "npm run eslint -- --cache",
     "dev": "webpack --progress --colors --watch --mode=development",
-    "eslint": "eslint --cache-location=node_modules/.cache/.eslintcache/ . ",
+    "eslint": "eslint --cache-location=node_modules/.cache/.eslintcache/ '*/**/*.{js,ts}'",
     "test": "jest --detectOpenHandles",
     "test-unit": "jest test/unit --detectOpenHandles",
     "coverage": "jest --coverage",
@@ -54,16 +54,17 @@
     "@babel/preset-typescript": "^7.12.13",
     "@types/debug": "^4.1.5",
     "@types/qs": "^6.9.5",
+    "@typescript-eslint/eslint-plugin": "^4.15.1",
+    "@typescript-eslint/parser": "^4.15.1",
     "async-mutex": "^0.2.6",
-    "babel-eslint": "^10.1.0",
     "babel-loader": "^8.2.2",
     "babel-plugin-add-module-exports": "^1.0.4",
     "babel-plugin-transform-class-properties": "^6.24.1",
     "benchmark": "^2.1.4",
     "buffer": "^6.0.3",
     "chromedriver": "^88.0.0",
     "core-js": "^3.8.3",
-    "eslint": "^7.18.0",
+    "eslint": "^7.20.0",
     "eslint-config-airbnb": "^18.2.1",
     "eslint-config-streamr-nodejs": "^1.3.0",
     "eslint-loader": "^4.0.2",