Fix HTTPException message

discohook/errors.py

@@ -30,7 +30,15 @@ def __init__(self, message: str):
 class HTTPException(Exception):
     """Raised when an HTTP request operation fails."""
 
-    def __init__(self, resp: aiohttp.ClientResponse, data: Any):
+    def __init__(self, resp: aiohttp.ClientResponse, message: str):
         self.resp = resp
-        message = f"[{resp.method}] {resp.url.path} {resp.status} with code({data['code']}): {data['message']}"
         super().__init__(message)
+
+    @classmethod
+    async def create(cls, resp: aiohttp.ClientResponse):
+        if resp.headers.get("content-type") == "application/json":
+            data = await resp.json()
+        else:
+            data = await resp.text()
+        message = f"[{resp.status} {resp.method}] {resp.url.path}\n{data}"
+        return cls(resp, message)

discohook/https.py

@@ -51,7 +51,7 @@ async def request(
             json=json,
         )
         if resp.status >= 400:
-            raise HTTPException(resp, await resp.json())
+            raise await HTTPException.create(resp)
         return resp
 
     async def fetch_application(self):