From b3929dd2e092ba3f14eff2d112bc9b056eb5eef9 Mon Sep 17 00:00:00 2001
From: Leon Klingele <git@leonklingele.de>
Date: Sun, 19 Jan 2025 22:58:09 +0100
Subject: [PATCH] fix(auth): ensure to set proper "Content-Type" HTTP request
 header

When not specifying a "data" property for HTTP requests, Axios
uses a "Content-Type: application/json" header, even if another
"Content-Type" header was specified. This makes these requests
to the Spotify API fail with a response status of 400 and a response
body of

	{"error":"server_error"}

This change sets an empty "data" property to make Axios send the
"Content-Type: application/x-www-form-urlencoded" header as expected.

I spent quite a bit of time on debugging this, until I found
https://github.com/spotify/web-api/issues/449#issuecomment-312677019
---
 src/managers/Auth.ts | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/src/managers/Auth.ts b/src/managers/Auth.ts
index 0dee5b3..96213ed 100644
--- a/src/managers/Auth.ts
+++ b/src/managers/Auth.ts
@@ -39,6 +39,7 @@ export class AuthManager {
 			headers: {
 				"Content-Type": "application/x-www-form-urlencoded",
 			},
+			data: {},
 		});
 
 		return data.access_token;
@@ -78,6 +79,7 @@ export class AuthManager {
 				"Content-Type": "application/x-www-form-urlencoded",
 				Authorization: `Basic ${encodeBase64(options.clientID + ":" + options.clientSecret)}`,
 			},
+			data: {},
 		});
 
 		return {