Configure ESLint and Prettier

.eslintignore

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

.eslintrc

@@ -0,0 +1,18 @@
+{
+    "root": true,
+    "parser": "@typescript-eslint/parser",
+    "plugins": [
+        "@typescript-eslint",
+        "prettier"
+    ],
+    "extends": [
+        "eslint:recommended",
+        "plugin:@typescript-eslint/eslint-recommended",
+        "plugin:@typescript-eslint/recommended",
+        "prettier"
+    ],
+    "rules": {
+        "no-console": 1, // Means warning
+        "prettier/prettier": 2 // Means error  
+    }
+}

.eslintrc.js

@@ -1,11 +0,0 @@
-module.exports = {
-    root: true,
-    parser: '@typescript-eslint/parser',
-    plugins: [
-        '@typescript-eslint',
-    ],
-    extends: [
-        'eslint:recommended',
-        'plugin:@typescript-eslint/recommended',
-    ],
-};

.prettierrc

@@ -0,0 +1,6 @@
+{
+  "semi": true,
+  "trailingComma": "none",
+  "singleQuote": false,
+  "printWidth": 80
+}

package-lock.json

@@ -32,9 +32,12 @@
         "chai": "^4.3.0",
         "dotenv": "^8.2.0",
         "eslint": "^7.20.0",
+        "eslint-config-prettier": "^8.1.0",
+        "eslint-plugin-prettier": "^3.3.1",
         "lodash": "^4.17.20",
         "mocha": "^8.3.0",
         "nyc": "^15.1.0",
+        "prettier": "^2.2.1",
         "ts-mocha": "^8.0.0",
         "ts-node": "^9.1.1",
         "typescript": "^4.2.0-insiders.20210210"
@@ -1417,6 +1420,39 @@
         "node": "^10.12.0 || >=12.0.0"
       }
     },
+    "node_modules/eslint-config-prettier": {
+      "version": "8.1.0",
+      "resolved": "https://registry.npmjs.org/eslint-config-prettier/-/eslint-config-prettier-8.1.0.tgz",
+      "integrity": "sha512-oKMhGv3ihGbCIimCAjqkdzx2Q+jthoqnXSP+d86M9tptwugycmTFdVR4IpLgq2c4SHifbwO90z2fQ8/Aio73yw==",
+      "dev": true,
+      "bin": {
+        "eslint-config-prettier": "bin/cli.js"
+      },
+      "peerDependencies": {
+        "eslint": ">=7.0.0"
+      }
+    },
+    "node_modules/eslint-plugin-prettier": {
+      "version": "3.3.1",
+      "resolved": "https://registry.npmjs.org/eslint-plugin-prettier/-/eslint-plugin-prettier-3.3.1.tgz",
+      "integrity": "sha512-Rq3jkcFY8RYeQLgk2cCwuc0P7SEFwDravPhsJZOQ5N4YI4DSg50NyqJ/9gdZHzQlHf8MvafSesbNJCcP/FF6pQ==",
+      "dev": true,
+      "dependencies": {
+        "prettier-linter-helpers": "^1.0.0"
+      },
+      "engines": {
+        "node": ">=6.0.0"
+      },
+      "peerDependencies": {
+        "eslint": ">=5.0.0",
+        "prettier": ">=1.13.0"
+      },
+      "peerDependenciesMeta": {
+        "eslint-config-prettier": {
+          "optional": true
+        }
+      }
+    },
     "node_modules/eslint-scope": {
       "version": "5.1.1",
       "resolved": "https://registry.npmjs.org/eslint-scope/-/eslint-scope-5.1.1.tgz",
@@ -1718,6 +1754,12 @@
       "integrity": "sha512-f3qQ9oQy9j2AhBe/H9VC91wLmKBCCU/gDOnKNAYG5hswO7BLKj09Hc5HYNz9cGI++xlpDCIgDaitVs03ATR84Q==",
       "dev": true
     },
+    "node_modules/fast-diff": {
+      "version": "1.2.0",
+      "resolved": "https://registry.npmjs.org/fast-diff/-/fast-diff-1.2.0.tgz",
+      "integrity": "sha512-xJuoT5+L99XlZ8twedaRf6Ax2TgQVxvgZOYoPKqZufmJib0tL2tegPBOZb1pVNgIhlqDlA0eO0c3wBvQcmzx4w==",
+      "dev": true
+    },
     "node_modules/fast-glob": {
       "version": "3.2.5",
       "resolved": "https://registry.npmjs.org/fast-glob/-/fast-glob-3.2.5.tgz",
@@ -3458,6 +3500,30 @@
         "node": ">= 0.8.0"
       }
     },
+    "node_modules/prettier": {
+      "version": "2.2.1",
+      "resolved": "https://registry.npmjs.org/prettier/-/prettier-2.2.1.tgz",
+      "integrity": "sha512-PqyhM2yCjg/oKkFPtTGUojv7gnZAoG80ttl45O6x2Ug/rMJw4wcc9k6aaf2hibP7BGVCCM33gZoGjyvt9mm16Q==",
+      "dev": true,
+      "bin": {
+        "prettier": "bin-prettier.js"
+      },
+      "engines": {
+        "node": ">=10.13.0"
+      }
+    },
+    "node_modules/prettier-linter-helpers": {
+      "version": "1.0.0",
+      "resolved": "https://registry.npmjs.org/prettier-linter-helpers/-/prettier-linter-helpers-1.0.0.tgz",
+      "integrity": "sha512-GbK2cP9nraSSUF9N2XwUwqfzlAFlMNYYl+ShE/V+H8a9uNl/oUqB1w2EL54Jh0OlyRSd8RfWYJ3coVS4TROP2w==",
+      "dev": true,
+      "dependencies": {
+        "fast-diff": "^1.1.2"
+      },
+      "engines": {
+        "node": ">=6.0.0"
+      }
+    },
     "node_modules/pretty-format": {
       "version": "26.6.2",
       "resolved": "https://registry.npmjs.org/pretty-format/-/pretty-format-26.6.2.tgz",
@@ -5755,6 +5821,22 @@
         }
       }
     },
+    "eslint-config-prettier": {
+      "version": "8.1.0",
+      "resolved": "https://registry.npmjs.org/eslint-config-prettier/-/eslint-config-prettier-8.1.0.tgz",
+      "integrity": "sha512-oKMhGv3ihGbCIimCAjqkdzx2Q+jthoqnXSP+d86M9tptwugycmTFdVR4IpLgq2c4SHifbwO90z2fQ8/Aio73yw==",
+      "dev": true,
+      "requires": {}
+    },
+    "eslint-plugin-prettier": {
+      "version": "3.3.1",
+      "resolved": "https://registry.npmjs.org/eslint-plugin-prettier/-/eslint-plugin-prettier-3.3.1.tgz",
+      "integrity": "sha512-Rq3jkcFY8RYeQLgk2cCwuc0P7SEFwDravPhsJZOQ5N4YI4DSg50NyqJ/9gdZHzQlHf8MvafSesbNJCcP/FF6pQ==",
+      "dev": true,
+      "requires": {
+        "prettier-linter-helpers": "^1.0.0"
+      }
+    },
     "eslint-scope": {
       "version": "5.1.1",
       "resolved": "https://registry.npmjs.org/eslint-scope/-/eslint-scope-5.1.1.tgz",
@@ -5905,6 +5987,12 @@
       "integrity": "sha512-f3qQ9oQy9j2AhBe/H9VC91wLmKBCCU/gDOnKNAYG5hswO7BLKj09Hc5HYNz9cGI++xlpDCIgDaitVs03ATR84Q==",
       "dev": true
     },
+    "fast-diff": {
+      "version": "1.2.0",
+      "resolved": "https://registry.npmjs.org/fast-diff/-/fast-diff-1.2.0.tgz",
+      "integrity": "sha512-xJuoT5+L99XlZ8twedaRf6Ax2TgQVxvgZOYoPKqZufmJib0tL2tegPBOZb1pVNgIhlqDlA0eO0c3wBvQcmzx4w==",
+      "dev": true
+    },
     "fast-glob": {
       "version": "3.2.5",
       "resolved": "https://registry.npmjs.org/fast-glob/-/fast-glob-3.2.5.tgz",
@@ -7279,6 +7367,21 @@
       "integrity": "sha512-vkcDPrRZo1QZLbn5RLGPpg/WmIQ65qoWWhcGKf/b5eplkkarX0m9z8ppCat4mlOqUsWpyNuYgO3VRyrYHSzX5g==",
       "dev": true
     },
+    "prettier": {
+      "version": "2.2.1",
+      "resolved": "https://registry.npmjs.org/prettier/-/prettier-2.2.1.tgz",
+      "integrity": "sha512-PqyhM2yCjg/oKkFPtTGUojv7gnZAoG80ttl45O6x2Ug/rMJw4wcc9k6aaf2hibP7BGVCCM33gZoGjyvt9mm16Q==",
+      "dev": true
+    },
+    "prettier-linter-helpers": {
+      "version": "1.0.0",
+      "resolved": "https://registry.npmjs.org/prettier-linter-helpers/-/prettier-linter-helpers-1.0.0.tgz",
+      "integrity": "sha512-GbK2cP9nraSSUF9N2XwUwqfzlAFlMNYYl+ShE/V+H8a9uNl/oUqB1w2EL54Jh0OlyRSd8RfWYJ3coVS4TROP2w==",
+      "dev": true,
+      "requires": {
+        "fast-diff": "^1.1.2"
+      }
+    },
     "pretty-format": {
       "version": "26.6.2",
       "resolved": "https://registry.npmjs.org/pretty-format/-/pretty-format-26.6.2.tgz",

package.json

@@ -23,6 +23,8 @@
     "user data"
   ],
   "scripts": {
+    "lint": "eslint . --ext .ts",
+    "prettier-format": "prettier --config .prettierrc 'src/**/*.ts' --write",
     "compile": "tsc",
     "publish": "npm publish",
     "test": "nyc --reporter=text mocha './test/index-test.ts'",
@@ -57,9 +59,12 @@
     "chai": "^4.3.0",
     "dotenv": "^8.2.0",
     "eslint": "^7.20.0",
+    "eslint-config-prettier": "^8.1.0",
+    "eslint-plugin-prettier": "^3.3.1",
     "lodash": "^4.17.20",
     "mocha": "^8.3.0",
     "nyc": "^15.1.0",
+    "prettier": "^2.2.1",
     "ts-mocha": "^8.0.0",
     "ts-node": "^9.1.1",
     "typescript": "^4.2.0-insiders.20210210"