From 462ed838019bd3e35532f3a4ba39efc8c807b367 Mon Sep 17 00:00:00 2001
From: Pedro Henrique Ferreira Figueiredo <pedro.figueiredo@getinsight.it>
Date: Mon, 23 Jun 2025 10:17:54 -0300
Subject: [PATCH] fix: adds missing HTTP Header to be used in the code-to-token
 request. Fixes https://github.com/vapor-community/Imperial/issues/80

---
 Sources/ImperialKeycloak/KeycloakRouter.swift | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/Sources/ImperialKeycloak/KeycloakRouter.swift b/Sources/ImperialKeycloak/KeycloakRouter.swift
index af1c96ef..76794dcc 100644
--- a/Sources/ImperialKeycloak/KeycloakRouter.swift
+++ b/Sources/ImperialKeycloak/KeycloakRouter.swift
@@ -23,6 +23,10 @@ struct KeycloakRouter: FederatedServiceRouter {
         self.accessTokenURL = keycloakTokens.accessTokenURL
     }
 
+    var callbackHeaders: HTTPHeaders {
+        .init([("Content-Type", "application/x-www-form-urlencoded")])
+    }
+
     func authURL(_ request: Request) throws -> String {
         return "\(self.authURL)/auth?"
             + "client_id=\(self.tokens.clientID)&"