From 43c8a3d77d9b5831d43f04edbc9b06949562b00f Mon Sep 17 00:00:00 2001
From: Elmar Athmer <elmar@athmer.org>
Date: Thu, 28 May 2020 12:41:10 +0200
Subject: [PATCH] fix 'subject' name in service-account claim

As indicated by
https://developers.google.com/identity/protocols/oauth2/service-account#httprest
the name for the subject-field inside the JWT claim needs to be named
'sub' (instead of 'subject').
This is relevant e.g. for the GSuite Admin Directory API.
---
 src/service_account.rs | 1 +
 1 file changed, 1 insertion(+)

diff --git a/src/service_account.rs b/src/service_account.rs
index 81d4c6e..933811d 100644
--- a/src/service_account.rs
+++ b/src/service_account.rs
@@ -92,6 +92,7 @@ struct Claims<'a> {
     aud: &'a str,
     exp: i64,
     iat: i64,
+    #[serde(rename = "sub")]
     subject: Option<&'a str>,
     scope: String,
 }