initial commit

.eslintrc.js

@@ -0,0 +1,46 @@
+// eslint-disable-next-line no-undef
+module.exports = {
+    root: true,
+    parser: '@typescript-eslint/parser',
+    plugins: [
+        '@typescript-eslint',
+        'no-null',
+        'promise',
+    ],
+    extends: [
+        'eslint:recommended',
+        'plugin:@typescript-eslint/eslint-recommended',
+        'plugin:@typescript-eslint/recommended',
+        'plugin:promise/recommended',
+    ],
+    rules: {
+        'no-console': 'error',
+        'max-len': ['error', {'code': 128}],
+        'no-process-env': 'error',
+        'no-process-exit': 'error',
+        'no-null/no-null': 'error',
+        'no-useless-return': 'error',
+        'prefer-arrow-callback': 'warn',
+        'consistent-return': 'error',
+        '@typescript-eslint/explicit-function-return-type': [
+            'error', {
+                'allowExpressions': true,
+            },
+        ],
+        'no-void': 'error',
+        'comma-spacing': 'error',
+        'comma-dangle': ['error', 'always-multiline'],
+        'comma-style': 'error',
+        'semi': 'error',
+        'no-implicit-coercion': 'error',
+        'quotes': ['error', 'single', 'avoid-escape'],
+        'keyword-spacing': 'error',
+        'semi-spacing': 'error',
+        'arrow-spacing': 'error',
+        'object-curly-spacing': 'error',
+        'array-bracket-spacing': 'error',
+        'key-spacing': 'error',
+        'block-spacing': 'error',
+        'promise/always-return': 'off',
+    },
+};