Add linting tools (eslint / prettier) (#1)

.eslintrc

@@ -0,0 +1,61 @@
+{
+  "parser": "@typescript-eslint/parser",
+  "plugins": ["@typescript-eslint", "import", "unused-imports", "prettier"],
+  "extends": ["eslint:recommended", "plugin:@typescript-eslint/recommended"],
+  "env": {
+    "es6": true,
+    "browser": true,
+    "jest": true,
+    "node": true
+  },
+  "rules": {
+    "prettier/prettier": "error",
+    "@typescript-eslint/ban-ts-comment": 0,
+    "@typescript-eslint/explicit-function-return-type": 0,
+    "@typescript-eslint/explicit-member-accessibility": 0,
+    "@typescript-eslint/explicit-module-boundary-types": 0,
+    "@typescript-eslint/indent": 0,
+    "@typescript-eslint/member-delimiter-style": 0,
+    "@typescript-eslint/no-empty-function": 0,
+    "@typescript-eslint/no-explicit-any": 0,
+    "@typescript-eslint/no-var-requires": 0,
+    "@typescript-eslint/no-non-null-assertion": 0,
+    "@typescript-eslint/no-use-before-define": 0,
+    "unused-imports/no-unused-imports-ts": 2,
+    "import/order": [
+      2,
+      {
+        "alphabetize": {
+          "order": "asc",
+          "caseInsensitive": true
+        },
+        "groups": ["builtin", "external", "internal", "parent", "sibling", "index"],
+        "pathGroups": [
+          {
+            "pattern": "react",
+            "group": "external",
+            "position": "before"
+          },
+          {
+            "pattern": "{~*,~*/**}",
+            "group": "internal"
+          }
+        ],
+        "pathGroupsExcludedImportTypes": ["builtin"],
+        "newlines-between": "always"
+      }
+    ],
+    "@typescript-eslint/no-unused-vars": [
+      2,
+      {
+        "argsIgnorePattern": "^_"
+      }
+    ],
+    "no-console": [
+      2,
+      {
+        "allow": ["warn", "error"]
+      }
+    ]
+  }
+}

package.json

@@ -25,16 +25,17 @@
     "@nestjs/cli": "8.2.4",
     "@types/express": "^4.17.13",
     "@types/node": "^16.0.0",
-    "@typescript-eslint/eslint-plugin": "^5.0.0",
-    "@typescript-eslint/parser": "^5.0.0",
-    "eslint": "^8.0.1",
-    "eslint-config-prettier": "^8.3.0",
+    "@typescript-eslint/eslint-plugin": "^5.16.0",
+    "@typescript-eslint/parser": "^5.16.0",
+    "eslint": "^8.11.0",
+    "eslint-plugin-import": "^2.25.4",
     "eslint-plugin-prettier": "^4.0.0",
-    "prettier": "^2.3.2",
+    "eslint-plugin-unused-imports": "^2.0.0",
+    "prettier": "^2.6.0",
     "source-map-support": "^0.5.20",
     "ts-loader": "^9.2.3",
     "ts-node": "^10.0.0",
     "tsconfig-paths": "^3.10.1",
-    "typescript": "^4.3.5"
+    "typescript": "^4.6.2"
   }
 }