fix(imports): define additional entry points for compatibility (#26)

Co-authored-by: Jan Soukup <[email protected]>

Author: sladg

Diff for: package.json

@@ -9,13 +9,17 @@
   "license": "MIT",
   "author": "Jan Soukup <[email protected]>",
   "exports": {
+    "default": "./dist/main.js",
+    "require": "./dist/main.js",
+    "import": "./dist/main.mjs",
     "server-handler": "./dist/server-handler.js",
     "server-handler/zip": "./dist/server-handler.zip",
     "image-handler": "./dist/image-handler.js",
     "image-handler/zip": "./dist/image-handler.zip",
     "sharp-layer/zip": "./dist/sharp-layer.zip"
   },
   "main": "dist/main.js",
+  "module": "dist/main.mjs",
   "types": "dist/main.d.ts",
   "bin": {
     "app": "dist/cli.js"

Diff for: rollup.config.js

@@ -7,10 +7,16 @@ export default [
 	{
 		input: 'lib/index.ts',
 		plugins: [json(), ts()],
-		output: {
-			format: 'cjs',
-			file: pkg.main,
-		},
+		output: [
+			{
+				format: 'cjs',
+				file: pkg.main,
+			},
+			{
+				format: 'esm',
+				file: pkg.module,
+			},
+		],
 	},
 	{
 		input: 'lib/cli.ts',