feat: added support for ESM (ECMAScript modules)

BREAKING CHANGE: due to added ESM module support Node.js version with
ESM implementation bugs are no longer supported, this only affects early
v13.x versions. The resulting Node.js semver range is
`>=10.13.0 < 13 || >=13.7.0`

.github/workflows/test.yml

@@ -48,7 +48,7 @@ jobs:
  - 11
  - 12.0.0
  - 12
- - 13.0.0
+ - 13.7.0
  - 13
  - 14.0.0
  - 14

lib/index.mjs

@@ -0,0 +1,9 @@
+import mod from './index.js'
+
+export default mod
+export const JWE = mod.JWE
+export const JWK = mod.JWK
+export const JWKS = mod.JWKS
+export const JWS = mod.JWS
+export const JWT = mod.JWT
+export const errors = mod.errors

package.json

@@ -45,18 +45,22 @@
  "funding": "https://github.com/sponsors/panva",
  "license": "MIT",
  "author": "Filip Skokan <[email protected]>",
+ "exports": {
+ "import": "./lib/index.mjs",
+ "require": "./lib/index.js"
+ },
+ "main": "lib/index.js",
+ "types": "types/index.d.ts",
  "files": [
  "lib/**/*.js",
  "LICENSE_THIRD_PARTY",
  "types/index.d.ts"
  ],
- "main": "lib/index.js",
- "types": "types/index.d.ts",
  "scripts": {
  "coverage": "c8 ava",
  "lint": "standard",
- "lint-ts": "npx typescript@~3.6.0 --build types",
  "lint-fix": "standard --fix",
+ "lint-ts": "npx typescript@~3.6.0 --build types",
  "test": "ava",
  "watch": "ava --watch"
  },
@@ -90,7 +94,7 @@
  "standard": "^14.3.1"
  },
  "engines": {
- "node": ">=10.13.0"
+ "node": ">=10.13.0 < 13 || >=13.7.0"
  },
  "standard": {
  "parser": "babel-eslint"