diff --git a/dvuploader/directupload.py b/dvuploader/directupload.py
index 4f57b0b..9e2d974 100644
--- a/dvuploader/directupload.py
+++ b/dvuploader/directupload.py
@@ -10,7 +10,7 @@
 from rich.progress import Progress, TaskID
 
 from dvuploader.file import File
-from dvuploader.utils import build_url, init_logging, wait_for_dataset_unlock
+from dvuploader.utils import init_logging, wait_for_dataset_unlock
 
 TESTING = bool(os.environ.get("DVUPLOADER_TESTING", False))
 MAX_FILE_DISPLAY = int(os.environ.get("DVUPLOADER_MAX_FILE_DISPLAY", 50))
@@ -69,6 +69,7 @@ async def direct_upload(
         "timeout": None,
         "limits": httpx.Limits(max_connections=n_parallel_uploads),
         "proxy": proxy,
+        "base_url": dataverse_url,
     }
 
     async with httpx.AsyncClient(**session_params) as session:
@@ -106,6 +107,7 @@ async def direct_upload(
         "timeout": None,
         "limits": httpx.Limits(max_connections=n_parallel_uploads),
         "headers": headers,
+        "base_url": dataverse_url,
     }
 
     async with httpx.AsyncClient(**session_params) as session:
@@ -159,6 +161,10 @@ async def _upload_to_store(
     )
 
     if "urls" not in ticket:
+        # Update the progress bar description and append [Singlepart]
+        progress.update(
+            pbar, description=f"Uploading file '{file.file_name}' [Singlepart]"
+        )
         status, storage_identifier = await _upload_singlepart(
             session=session,
             ticket=ticket,
@@ -170,6 +176,10 @@ async def _upload_to_store(
         )
 
     else:
+        # Update the progress bar description and append [Multipart]
+        progress.update(
+            pbar, description=f"Uploading file '{file.file_name}' [Multipart]"
+        )
         status, storage_identifier = await _upload_multipart(
             session=session,
             response=ticket,
@@ -205,14 +215,17 @@ async def _request_ticket(
     Returns:
         Dict: Upload ticket containing URL and storage identifier.
     """
-    url = build_url(
-        endpoint=urljoin(dataverse_url, TICKET_ENDPOINT),
-        key=api_token,
-        persistentId=persistent_id,
-        size=file_size,
+    response = await session.get(
+        TICKET_ENDPOINT,
+        timeout=None,
+        params={
+            "size": file_size,
+            "persistentId": persistent_id,
+        },
+        headers={
+            "X-Dataverse-key": api_token,
+        },
     )
-
-    response = await session.get(url, timeout=None)
     response.raise_for_status()
 
     return response.json()["data"]
diff --git a/dvuploader/dvuploader.py b/dvuploader/dvuploader.py
index 0bde75b..53a3d59 100644
--- a/dvuploader/dvuploader.py
+++ b/dvuploader/dvuploader.py
@@ -17,7 +17,7 @@
 )
 from dvuploader.file import File
 from dvuploader.nativeupload import native_upload
-from dvuploader.utils import build_url, retrieve_dataset_files, setup_pbar
+from dvuploader.utils import retrieve_dataset_files, setup_pbar
 
 
 class DVUploader(BaseModel):
@@ -410,15 +410,17 @@ def _has_direct_upload(
             bool: True if direct upload is supported, False otherwise.
         """
 
-        query = build_url(
-            endpoint=urljoin(dataverse_url, TICKET_ENDPOINT),
-            key=api_token,
-            persistentId=persistent_id,
-            size=1024,
-        )
-
         # Send HTTP request
-        response = httpx.get(query)
+        response = httpx.get(
+            urljoin(dataverse_url, TICKET_ENDPOINT),
+            params={
+                "size": 1024,
+                "persistentId": persistent_id,
+            },
+            headers={
+                "X-Dataverse-key": api_token,
+            },
+        )
 
         if response.status_code == 404:
             return False