Makes esm and cjs build and fixes hexoid problem

Author: ralexmatthews

index.js

@@ -4,15 +4,23 @@
   "version": "7.5.5",
   "author": "Easypost Engineering <[email protected]>",
   "homepage": "https://easypost.com",
+  "exports": {
+    ".": {
+      "import": "./dist/easypost.mjs",
+      "require": "./dist/easypost.js",
+      "types": "./types/index.d.ts"
+    }
+  },
+  "main": "./dist/easypost.js",
+  "module": "./dist/easypost.mjs",
+  "types": "./types/index.d.ts",
   "bin": {
     "easypost": "./repl.js"
   },
   "repository": {
     "type": "git",
     "url": "git://github.com/easypost/easypost-node.git"
   },
-  "main": "index.js",
-  "types": "types/index.d.ts",
   "license": "MIT",
   "engines": {
     "node": ">= 16.0"

package.json

@@ -12,14 +12,21 @@ export default defineConfig({
     lib: {
       entry: path.resolve(__dirname, 'src/easypost.js'),
       fileName: 'easypost',
-      formats: ['cjs'],
+      formats: ['cjs', 'es'],
     },
     sourcemap: isDev,
     rollupOptions: {
       external: [/^node:.*/, /^@?[a-zA-Z\-_]+\/?[a-zA-Z\-_]*$/],
-      output: {
-        dir: 'dist',
-      },
+      output: [
+        {
+          format: 'cjs',
+          entryFileNames: '[name].js',
+        },
+        {
+          format: 'esm',
+          entryFileNames: '[name].mjs',
+        },
+      ],
     },
   },