From d660b1740f06f2582debd3a713517eeda037f947 Mon Sep 17 00:00:00 2001
From: Tobias Schneider <mail@tobias-schneider.io>
Date: Sat, 4 Jun 2022 17:23:53 +0200
Subject: [PATCH] `.decode()` syntax change to support headers

---
 index.js      |  5 ++++-
 index.test.js | 10 +++++++---
 package.json  |  2 +-
 3 files changed, 12 insertions(+), 5 deletions(-)

diff --git a/index.js b/index.js
index bec9fc7..e47ba01 100644
--- a/index.js
+++ b/index.js
@@ -116,7 +116,10 @@ class JWT {
         return await crypto.subtle.verify(importAlgorithm, key, Base64URL.parse(tokenParts[2]), this._utf8ToUint8Array(`${tokenParts[0]}.${tokenParts[1]}`))
     }
     decode(token) {
-        return this._decodePayload(token.split('.')[1].replace(/-/g, '+').replace(/_/g, '/'))
+        return {
+            header: this._decodePayload(token.split('.')[0].replace(/-/g, '+').replace(/_/g, '/')),
+            payload: this._decodePayload(token.split('.')[1].replace(/-/g, '+').replace(/_/g, '/'))
+        }
     }
 }
 
diff --git a/index.test.js b/index.test.js
index aba8566..a0cd222 100644
--- a/index.test.js
+++ b/index.test.js
@@ -115,12 +115,14 @@ test.each(Object.entries(secrets))(`Self test: %s`, async (algorithm, key) => {
         privateKey = key.private
         publicKey = key.public
     }
+    
     const token = await JWT.sign(testPayload, privateKey, { algorithm })
     expect(token).toMatch(/^[a-zA-Z0-9\-_]+\.[a-zA-Z0-9\-_]+\.[a-zA-Z0-9\-_]+$/)
+    
     const verified = await JWT.verify(token, publicKey, { algorithm })
     expect(verified).toBeTruthy()
-    const payload = JWT.decode(token)
-    expect(payload).toBeTruthy()
+    
+    const { payload } = JWT.decode(token)
     expect({
         sub: payload.sub,
         name: payload.name
@@ -151,9 +153,11 @@ test.each(Object.entries(externalTokens))('Verify external tokens: %s', async (a
         privateKey = key.private
         publicKey = key.public
     }
+    
     const verified = await JWT.verify(token, publicKey, { algorithm })
     expect(verified).toBeTruthy()
-    const payload = JWT.decode(token)
+
+    const { payload } = JWT.decode(token)
     expect({
         sub: payload.sub,
         name: payload.name
diff --git a/package.json b/package.json
index e18c3d9..e2040a0 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@tsndr/cloudflare-worker-jwt",
-  "version": "1.3.1",
+  "version": "1.4.0",
   "description": "A lightweight JWT implementation with ZERO dependencies for Cloudflare Worker",
   "main": "index.js",
   "scripts": {