feat: add support for open-rpc extensions.

OpenRPC extensions allow for extending the open-rpc spec with
the x-extensions parameter this will allow for user customization
and for a pathway to start upgrading and expanding the current
OpenRPC spec.

.eslintrc.js

@@ -1,12 +1,16 @@
+/** @type {import('eslint').Linter.Config} */
 module.exports = {
-  root: true,
-  parser: '@typescript-eslint/parser',
-  plugins: [
-    '@typescript-eslint',
-  ],
   extends: [
-    'eslint:recommended',
-    'plugin:@typescript-eslint/eslint-recommended',
-    'plugin:@typescript-eslint/recommended',
+    "eslint:recommended",
+    "plugin:@typescript-eslint/recommended",
+    "plugin:prettier/recommended",
   ],
+  env: {
+    node: true,
+    es2020: true,
+  },
+  rules: {
+    "@typescript-eslint/no-unused-vars": ["error", { argsIgnorePattern: "^_" }],
+  },
+  ignorePatterns: ["dist/", "build/", "node_modules/"],
 };

.github/workflows/lint.yml

@@ -6,12 +6,12 @@ jobs:
     name: lint
     runs-on: ubuntu-latest
     steps:
-    - uses: actions/checkout@v1
-    - name: Use Node.js 14.15.1
-      uses: actions/setup-node@v1
-      with:
-        node-version: 14.15.1
-    - name: npm install
-      run: npm install
-    - name: lint
-      run: npm run lint
+      - uses: actions/checkout@v1
+      - name: Use Node.js 20.11.1
+        uses: actions/setup-node@v1
+        with:
+          node-version: 20.11.1
+      - name: npm install
+        run: npm install
+      - name: lint
+        run: npm run lint

.gitignore

@@ -4,3 +4,4 @@ build
 docs
 .DS_Store
 dist
+.vscode

.prettierrc.js

@@ -0,0 +1,7 @@
+module.exports = {
+  semi: true,
+  printWidth: 80,
+  printWidth: 100,
+  tabWidth: 2,
+  trailingComma: "es5", 
+} 

jest.config.js

@@ -1,8 +1,8 @@
 module.exports = {
   clearMocks: true,
-  coverageDirectory: '../coverage',
+  coverageDirectory: "../coverage",
   resetMocks: true,
   restoreMocks: true,
-  rootDir: './src',
-  preset: 'ts-jest'
+  rootDir: "./src",
+  preset: "ts-jest",
 };