add api jssdk

frontend/packages/api/.editorconfig

@@ -0,0 +1,11 @@
+root = true
+
+[*]
+charset = utf-8
+indent_style = tab
+end_of_line = lf
+insert_final_newline = true
+
+[{*.json,.prettierrc}]
+indent_style = space
+

frontend/packages/api/.eslintrc.js

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+module.exports = {
+	env: {
+		browser: true,
+		es2021: true,
+	},
+	extends: [
+		'eslint:recommended',
+		'plugin:@typescript-eslint/recommended',
+		'plugin:@typescript-eslint/recommended-requiring-type-checking',
+		'prettier',
+	],
+	parser: '@typescript-eslint/parser',
+	parserOptions: {
+		ecmaVersion: 'latest',
+		sourceType: 'module',
+		project: './tsconfig.json',
+	},
+	plugins: ['@typescript-eslint'],
+	overrides: [
+		{
+			files: ['*.spec.ts'],
+			rules: {
+				'@typescript-eslint/no-unsafe-assignment': 'off',
+				'@typescript-eslint/no-unsafe-member-access': 'off',
+				'@typescript-eslint/no-unsafe-call': 'off',
+			},
+		},
+	],
+}

frontend/packages/api/.gitignore

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+node_modules
+coverage
+dist

frontend/packages/api/.npmignore

@@ -0,0 +1,2 @@
+**/*
+!dist

frontend/packages/api/.prettierrc

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+{
+	"semi": false,
+	"printWidth": 100,
+	"quoteProps": "consistent",
+	"singleQuote": true
+}

frontend/packages/api/README.md

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+# @remark42/api
+
+Implementation of API methods for Remark42
+
+## Development
+
+- If you don't have `pnpm` installed run `npm i -g pnpm`
+- Install dependencies `pnpm i`
+- Run development mode with `pnpm run dev`
+- Build lib with `pnpm run build`
+- Run tests with `pnpm run test`

frontend/packages/api/jest.config.ts

@@ -0,0 +1,15 @@
+import type { Config } from '@jest/types'
+
+const config: Config.InitialOptions = {
+	testEnvironment: 'jsdom',
+	transform: {
+		'^.+\\.ts$': '@swc/jest',
+	},
+	collectCoverageFrom: ['src/**/*.ts'],
+	extensionsToTreatAsEsm: ['.ts', '.tsx'],
+	moduleNameMapper: {
+		'^@test/(.*)$': '<rootDir>/test/$1',
+	},
+}
+
+export default config

frontend/packages/api/package.json

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+{
+  "name": "@remark42/api",
+  "version": "0.1.0-alpha.0",
+  "description": "Implementation of API methods for Remark42",
+  "repository": {
+    "type": "git",
+    "url": "git+https://github.com/umputun/remark42.git#master"
+  },
+  "bugs": {
+    "url": "https://github.com/umputun/remark42/issues"
+  },
+  "homepage": "https://github.com/umputun/remark42/tree/master/frontend/packages/api#readme",
+  "keywords": [
+    "remark42",
+    "comments"
+  ],
+  "author": "Paul Mineev",
+  "license": "MIT",
+  "scripts": {
+    "dev": "tsc -w -p tsconfig.dev.json",
+    "build": "tsc",
+    "prebuild": "rm -rf dist",
+    "test": "jest",
+    "coverage": "jest --coverage",
+    "lint": "eslint src --ext=.ts,.js",
+    "type-check": "tsc --noEmit",
+    "format": "prettier --write '**/*.{ts,js,json}'"
+  },
+  "devDependencies": {
+    "@jest/types": "^28.1.1",
+    "@swc/core": "^1.2.203",
+    "@swc/jest": "^0.2.21",
+    "@types/jest": "^28.1.2",
+    "@types/node": "^18.0.0",
+    "@typescript-eslint/eslint-plugin": "^5.28.0",
+    "@typescript-eslint/parser": "^5.28.0",
+    "eslint": "^8.18.0",
+    "eslint-config-prettier": "^8.5.0",
+    "jest": "^28.1.1",
+    "jest-environment-jsdom": "^28.1.1",
+    "prettier": "^2.7.1",
+    "ts-node": "^10.8.1",
+    "typescript": "^4.7.4"
+  }
+}