feat: package is now ESM (#393)

* feat: package is now ESM

BREAKING CHANGE: package is now ESM

* build: add dom libs to tsconfig so it can build

README.md

@@ -49,8 +49,7 @@ Node
 Install with <code>npm install @octokit/auth-token</code>
 
 ```js
-const { createTokenAuth } = require("@octokit/auth-token");
-// or: import { createTokenAuth } from "@octokit/auth-token";
+import { createTokenAuth } from "@octokit/auth-token";
 ```
 
 </td></tr>

package.json

@@ -3,11 +3,12 @@
   "publishConfig": {
     "access": "public"
   },
+  "type": "module",
   "version": "0.0.0-development",
   "description": "GitHub API token authentication for browsers and Node.js",
   "scripts": {
     "build": "node scripts/build.mjs && tsc -p tsconfig.json",
-    "test": "jest --coverage",
+    "test": "NODE_OPTIONS=\"$NODE_OPTIONS --experimental-vm-modules\" npx jest --coverage",
     "pretest": "npm run -s lint",
     "lint": "prettier --check '{src,test}/**/*.{ts,md}' '*.md' package.json",
     "lint:fix": "prettier --write '{src,test}/**/*.{ts,md}' '*.md' package.json"
@@ -22,26 +23,30 @@
   "author": "Gregor Martynus (https://github.com/gr2m)",
   "license": "MIT",
   "devDependencies": {
-    "@octokit/request": "^8.0.1",
-    "@octokit/tsconfig": "^2.0.0",
+    "@octokit/request": "^9.0.0",
+    "@octokit/tsconfig": "^3.0.0",
     "@octokit/types": "^12.0.0",
-    "@types/fetch-mock": "^7.3.1",
+    "@types/fetch-mock": "^7.3.8",
     "@types/jest": "^29.0.0",
     "esbuild": "^0.20.0",
-    "fetch-mock": "^9.0.0",
+    "fetch-mock": "npm:@gr2m/fetch-mock@9.11.0-pull-request-644.1",
     "glob": "^10.2.6",
     "jest": "^29.0.0",
     "prettier": "3.2.5",
     "semantic-release": "^23.0.0",
-    "ts-jest": "^29.0.0",
-    "typescript": "^5.0.0"
+    "ts-jest": "^29.1.0",
+    "typescript": "^5.3.0"
   },
   "jest": {
+    "extensionsToTreatAsEsm": [
+      ".ts"
+    ],
     "transform": {
       "^.+\\.(ts|tsx)$": [
         "ts-jest",
         {
-          "tsconfig": "test/tsconfig.test.json"
+          "tsconfig": "test/tsconfig.test.json",
+          "useESM": true
         }
       ]
     },
@@ -52,6 +57,9 @@
         "functions": 100,
         "lines": 100
       }
+    },
+    "moduleNameMapper": {
+      "^(.+)\\.jsx?$": "$1"
     }
   },
   "release": {

scripts/build.mjs

@@ -35,27 +35,14 @@ async function main() {
 
   const entryPoints = ["./pkg/dist-src/index.js"];
 
-  await Promise.all([
-    // Build the a CJS Node.js bundle
-    esbuild.build({
-      entryPoints,
-      outdir: "pkg/dist-node",
-      bundle: true,
-      platform: "node",
-      target: "node14",
-      format: "cjs",
-      ...sharedOptions,
-    }),
-    // Build an ESM browser bundle
-    esbuild.build({
-      entryPoints,
-      outdir: "pkg/dist-web",
-      bundle: true,
-      platform: "browser",
-      format: "esm",
-      ...sharedOptions,
-    }),
-  ]);
+  await esbuild.build({
+    entryPoints,
+    outdir: "pkg/dist-bundle",
+    bundle: true,
+    platform: "neutral",
+    format: "esm",
+    ...sharedOptions,
+  });
 
   // Copy the README, LICENSE to the pkg folder
   await copyFile("LICENSE", "pkg/LICENSE");
@@ -74,10 +61,12 @@ async function main() {
       {
         ...pkg,
         files: ["dist-*/**", "bin/**"],
-        main: "dist-node/index.js",
-        browser: "dist-web/index.js",
-        types: "dist-types/index.d.ts",
-        module: "dist-src/index.js",
+        exports: {
+          ".": {
+            types: "./dist-types/index.d.ts",
+            import: "./dist-bundle/index.js",
+          },
+        },
         sideEffects: false,
       },
       null,

src/auth.ts

@@ -1,4 +1,4 @@
-import type { Token, Authentication } from "./types";
+import type { Token, Authentication } from "./types.js";
 
 const REGEX_IS_INSTALLATION_LEGACY = /^v1\./;
 const REGEX_IS_INSTALLATION = /^ghs_/;

src/hook.ts

@@ -6,9 +6,9 @@ import type {
   RequestParameters,
   Route,
   Token,
-} from "./types";
+} from "./types.js";
 
-import { withAuthorizationPrefix } from "./with-authorization-prefix";
+import { withAuthorizationPrefix } from "./with-authorization-prefix.js";
 
 export async function hook(
   token: Token,

src/index.ts

@@ -1,6 +1,6 @@
-import { auth } from "./auth";
-import { hook } from "./hook";
-import type { StrategyInterface, Token, Authentication } from "./types";
+import { auth } from "./auth.js";
+import { hook } from "./hook.js";
+import type { StrategyInterface, Token, Authentication } from "./types.js";
 
 export type Types = {
   StrategyOptions: Token;

src/types.ts

@@ -1,4 +1,4 @@
-import * as OctokitTypes from "@octokit/types";
+import type * as OctokitTypes from "@octokit/types";
 
 export type AnyResponse = OctokitTypes.OctokitResponse<any>;
 export type StrategyInterface = OctokitTypes.StrategyInterface<

test/index.test.ts

@@ -1,7 +1,7 @@
 import { request } from "@octokit/request";
-import fetchMock, { MockMatcherFunction } from "fetch-mock";
+import fetchMock, { type MockMatcherFunction } from "fetch-mock";
 
-import { createTokenAuth } from "../src/index";
+import { createTokenAuth } from "../src/index.js";
 
 test("README example", async () => {
   const auth = createTokenAuth("ghp_PersonalAccessToken01245678900000000");
@@ -173,7 +173,7 @@ test('auth.hook(request, "GET /user")', async () => {
   const { hook } = createTokenAuth("ghp_PersonalAccessToken01245678900000000");
   const { data } = await hook(requestMock, "GET /user");
 
-  expect(data).toStrictEqual({ id: 123 });
+  expect({ ...data }).toStrictEqual({ id: 123 });
 });
 
 test("auth.hook() with JWT", async () => {
@@ -204,5 +204,5 @@ test("auth.hook() with JWT", async () => {
   );
   const { data } = await hook(requestMock, "GET /user");
 
-  expect(data).toStrictEqual({ id: 123 });
+  expect({ ...data }).toStrictEqual({ id: 123 });
 });

test/tsconfig.test.json

@@ -2,8 +2,7 @@
   "extends": "../tsconfig.json",
   "compilerOptions": {
     "emitDeclarationOnly": false,
-    "noEmit": true,
-    "verbatimModuleSyntax": false
+    "noEmit": true
   },
-  "include": ["src/**/*"]
+  "include": ["test/**/*"]
 }

tsconfig.json

@@ -1,6 +1,7 @@
 {
   "extends": "@octokit/tsconfig",
   "compilerOptions": {
+    "lib": ["es2023", "dom", "dom.iterable"],
     "esModuleInterop": true,
     "declaration": true,
     "outDir": "pkg/dist-types",