add api/item/{id} endpoint

API.md

@@ -23,6 +23,7 @@ This document describes the available endpoints and their usage. All endpoints r
     - [POST /api/history](#post-apihistory)
     - [DELETE /api/history](#delete-apihistory)
     - [POST /api/history/{id}](#post-apihistoryid)
+    - [GET /api/history/{id}](#get-apihistoryid)
     - [GET /api/history](#get-apihistory)
     - [GET /api/tasks](#get-apitasks)
     - [PUT /api/tasks](#put-apitasks)
@@ -296,6 +297,34 @@ or an error:
 
 ---
 
+### GET /api/history/{id}
+**Purpose**: View details of a specific item in the database.
+
+**Path Parameter**:
+- `id` = Unique item ID.
+
+**Response**:
+```json
+{
+  "_id": "<uuid>",
+  "title": "Video Title",
+  "url": "https://youtube.com/watch?v=...",
+  ....
+}
+```
+or an error:
+```json
+{
+  "error": "text"
+}
+```
+
+- `200 OK` If the item exists and is returned.
+- `404 Not Found` if the item doesn’t exist.
+- `400 Bad Request` if id is missing.
+
+---
+
 ### GET /api/history
 **Purpose**: Returns the download queue and the download history.  
 

app/routes/api/history.py

@@ -69,6 +69,32 @@ async def item_delete(request: Request, queue: DownloadQueue, encoder: Encoder)
     )
 
 
+@route("GET", "api/history/{id}", "item_view")
+async def item_view(request: Request, queue: DownloadQueue, encoder: Encoder) -> Response:
+    """
+    Update an item in the history.
+
+    Args:
+        request (Request): The request object.
+        queue (DownloadQueue): The download queue instance.
+        encoder (Encoder): The encoder instance.
+        notify (EventBus): The event bus instance.
+
+    Returns:
+        Response: The response object.
+
+    """
+    id: str = request.match_info.get("id")
+    if not id:
+        return web.json_response(data={"error": "id is required."}, status=web.HTTPBadRequest.status_code)
+
+    item: Download | None = queue.done.get_by_id(id) or queue.queue.get_by_id(id)
+    if not item:
+        return web.json_response(data={"error": "item not found."}, status=web.HTTPNotFound.status_code)
+
+    return web.json_response(data=item.info, status=web.HTTPOk.status_code, dumps=encoder.encode)
+
+
 @route("POST", "api/history/{id}", "item_update")
 async def item_update(request: Request, queue: DownloadQueue, encoder: Encoder, notify: EventBus) -> Response:
     """