API Generator (#872)

.github/workflows/generate_api.yml

@@ -0,0 +1,62 @@
+name: Generate API from Spec
+on:
+  workflow_dispatch:
+  schedule:
+    - cron: "0 0 * * 0" # Every Sunday at midnight GMT
+jobs:
+  generate-api:
+    if: ${{ github.repository == 'opensearch-project/opensearch-js' }}
+    runs-on: ubuntu-latest
+    defaults:
+      run:
+        working-directory: ./api_generator
+    permissions:
+      contents: write
+      pull-requests: write
+    steps:
+      - uses: actions/checkout@v4
+        with:
+          submodules: recursive
+          fetch-depth: 0
+
+      - name: Config git to rebase
+        run: git config --global pull.rebase true
+
+      - name: Setup Node.js
+        uses: actions/setup-node@v3
+        with:
+          node-version: '20'
+
+      - name: Install dependencies
+        run: npm ci
+
+      - name: Generate API
+        run: |-
+          npm run download_spec
+          npm run generate_api
+
+      - name: Get current date
+        id: date
+        run: echo "date=$(date +'%Y-%m-%d')" >> $GITHUB_ENV
+
+      - name: GitHub App token
+        id: github_app_token
+        uses: tibdex/github-app-token@v2.1.0
+        with:
+          app_id: ${{ secrets.APP_ID }}
+          private_key: ${{ secrets.APP_PRIVATE_KEY }}
+
+      - name: Create pull request
+        uses: peter-evans/create-pull-request@v6
+        with:
+          token: ${{ steps.github_app_token.outputs.token }}
+          commit-message: "Updated opensearch-js to reflect the latest OpenSearch API spec (${{ env.date }})"
+          title: "[AUTOCUT] Update opensearch-js to reflect the latest OpenSearch API spec"
+          body: |
+            Update `opensearch-js` to reflect the latest [OpenSearch API spec](https://github.com/opensearch-project/opensearch-api-specification/releases/download/main-latest/opensearch-openapi.yaml).
+            Date: ${{ env.date }}
+          branch: update-api-from-spec
+          base: main
+          signoff: true
+          labels: |
+            autocut

.github/workflows/lint_api_generator.yml

@@ -0,0 +1,28 @@
+name: Lint API Generator
+on:
+  pull_request:
+    paths:
+      - 'api_generator/**'
+      - '.github/workflows/lint_api_generator.yml'
+jobs:
+  lint-api-generator:
+    runs-on: ubuntu-latest
+    defaults:
+      run:
+        working-directory: ./api_generator
+    steps:
+      - uses: actions/checkout@v4
+        with:
+          submodules: recursive
+          fetch-depth: 0
+
+      - name: Setup Node.js
+        uses: actions/setup-node@v3
+        with:
+          node-version: '20'
+
+      - name: Install dependencies
+        run: npm ci
+
+      - name: Lint API Generator
+        run: npm run lint

CHANGELOG.md

@@ -18,6 +18,7 @@ Inspired by [Keep a Changelog](https://keepachangelog.com/en/1.0.0/)
 
 ## [3.0.0]
 ### Added
+- Added API Generator ([#789](https://github.com/opensearch-project/opensearch-js/issues/789))
 - Added missing API functions and modules.
 - Added missing request and response types.
 ### Dependencies

api_generator/.gitignore

@@ -0,0 +1 @@
+opensearch-openapi.yaml

api_generator/eslint.config.mjs

@@ -0,0 +1,75 @@
+import path from 'path'
+import { fileURLToPath } from 'url'
+import { FlatCompat } from '@eslint/eslintrc'
+import pluginJs from '@eslint/js'
+import licenseHeader from 'eslint-plugin-license-header'
+
+// mimic CommonJS variables -- not needed if using CommonJS
+const _filename = fileURLToPath(import.meta.url)
+const _dirname = path.dirname(_filename)
+const compat = new FlatCompat({ baseDirectory: _dirname, recommendedConfig: pluginJs.configs.recommended })
+
+export default [
+  pluginJs.configs.recommended,
+  ...compat.extends('standard-with-typescript'),
+  {
+    files: ['**/*.{js,ts}'],
+    plugins: {
+      'license-header': licenseHeader
+    },
+    rules: {
+      '@typescript-eslint/consistent-indexed-object-style': 'error',
+      '@typescript-eslint/consistent-type-assertions': 'error',
+      '@typescript-eslint/dot-notation': 'error',
+      '@typescript-eslint/explicit-function-return-type': 'error',
+      '@typescript-eslint/naming-convention': ['error',
+        { selector: 'classProperty', modifiers: ['static', 'readonly'], format: ['UPPER_CASE'], leadingUnderscore: 'allow' },
+        { selector: 'memberLike', modifiers: ['public'], format: ['snake_case'], leadingUnderscore: 'forbid' },
+        { selector: 'memberLike', modifiers: ['private', 'protected'], format: ['snake_case'], leadingUnderscore: 'require' },
+        { selector: 'variableLike', format: ['snake_case', 'UPPER_CASE'], leadingUnderscore: 'allow' },
+        { selector: 'typeLike', format: ['PascalCase'] },
+        { selector: 'objectLiteralProperty', format: null },
+        { selector: 'typeProperty', format: null }
+      ],
+      '@typescript-eslint/no-confusing-void-expression': 'error',
+      '@typescript-eslint/no-dynamic-delete': 'error',
+      '@typescript-eslint/no-invalid-void-type': 'error',
+      '@typescript-eslint/no-non-null-assertion': 'error',
+      '@typescript-eslint/no-unnecessary-type-assertion': 'error',
+      '@typescript-eslint/no-unsafe-argument': 'error',
+      '@typescript-eslint/prefer-nullish-coalescing': 'error',
+      '@typescript-eslint/require-array-sort-compare': 'error',
+      '@typescript-eslint/strict-boolean-expressions': ['error',
+        {
+          allowString: true,
+          allowNumber: true,
+          allowNullableObject: true,
+          allowNullableBoolean: true,
+          allowNullableString: false,
+          allowNullableNumber: false,
+          allowNullableEnum: false,
+          allowAny: false,
+          allowRuleToRunWithoutStrictNullChecksIKnowWhatIAmDoing: false
+        }
+      ],
+      'array-callback-return': 'off',
+      'new-cap': 'off',
+      'no-return-assign': 'error',
+      'object-shorthand': 'error',
+      'license-header/header': [
+        'error',
+        [
+          '/*',
+          ' * Copyright OpenSearch Contributors',
+          ' * SPDX-License-Identifier: Apache-2.0',
+          ' *',
+          ' * The OpenSearch Contributors require contributions made to',
+          ' * this file be licensed under the Apache-2.0 license or a',
+          ' * compatible open source license.',
+          ' *',
+          ' */'
+        ]
+      ]
+    }
+  }
+]