Add support for CJS and ESM builds

Author: Georg Traar

examples/cjs-example.cjs

@@ -0,0 +1,7 @@
+let CrateDBClient = require('../dist/cjs/CrateDBClient.js');
+let client = new CrateDBClient.CrateDBClient();
+
+client
+  .execute('SELECT 1;')
+  .then((res) => console.log(res))
+  .catch((err) => console.error(err));

examples/esm-example.js

@@ -0,0 +1,7 @@
+import { CrateDBClient } from '../dist/esm/CrateDBClient.js';
+let client = new CrateDBClient();
+
+client
+  .execute('SELECT 1;')
+  .then((res) => console.log(res))
+  .catch((err) => console.error(err));

package.json

@@ -2,11 +2,19 @@
   "name": "@proddata/node-cratedb",
   "version": "0.0.8",
   "description": "Node.js client for CrateDB",
-  "main": "dist/CrateDBClient.js",
   "types": "dist/index.d.ts",
   "type": "module",
+  "main": "dist/cjs/index.cjs",
+  "module": "dist/esm/index.js",
+  "exports": {
+    "import": "./dist/esm/index.js",
+    "require": "./dist/cjs/index.js"
+  },
   "scripts": {
-    "build": "tsc",
+    "build": "npm run build:clean && npm run build:esm && npm run build:cjs",
+    "build:clean": "rm -rf dist",
+    "build:esm": "tsc --project tsconfig.esm.json && echo '{\"type\": \"module\"}' > dist/esm/package.json",
+    "build:cjs": "tsc --project tsconfig.cjs.json && echo '{\"type\": \"commonjs\"}' > dist/cjs/package.json",
     "prepare": "npm run build",
     "format": "prettier --write 'src/**/*.{ts,tsx,js,jsx}'",
     "check-format": "prettier --check 'src/**/*.{ts,tsx,js,jsx}'",
@@ -51,4 +59,4 @@
   "engines": {
     "node": ">=21.0.0"
   }
-}
+}

src/CrateDBClient.ts

@@ -3,7 +3,7 @@ import http, { AgentOptions } from 'http';
 import https from 'https';
 import { URL } from 'url';
 import { CrateDBCursor } from './CrateDBCursor.js';
-import { CrateDBSerializer } from '../src/CrateDBSerializer';
+import { CrateDBSerializer } from './CrateDBSerializer.js';
 import {
   CrateDBConfig,
   CrateDBBaseResponse,

src/CrateDBSerializer.ts

@@ -1,4 +1,4 @@
-import { CrateDBTypes } from './CrateDBTypes';
+import { CrateDBTypes } from './CrateDBTypes.js';
 import { CrateDBBaseResponse } from './interfaces';
 
 export class CrateDBSerializer {

tsconfig.cjs.json

@@ -0,0 +1,7 @@
+{
+  "extends": "./tsconfig.json",
+  "compilerOptions": {
+    "outDir": "dist/cjs",
+    "module": "commonjs"
+  }
+}

tsconfig.esm.json

@@ -0,0 +1,7 @@
+{
+  "extends": "./tsconfig.json",
+  "compilerOptions": {
+    "outDir": "dist/esm",
+    "module": "ES2022"
+  }
+}

tsconfig.json

@@ -1,10 +1,10 @@
 {
   "compilerOptions": {
+    "outDir": "dist",
+    "rootDir": "src",
     "target": "ES2022",
     "module": "ES2022",
     "moduleResolution": "node",
-    "outDir": "dist",
-    "rootDir": "src",
     "declaration": true,
     "sourceMap": true,
     "strict": true,