feat(browser_base_fetch): add async_mode to support both synchronous and asynchronous execution

- Introduced an async_mode flag to allow users to choose between synchronous and asynchronous fetching using Browserbase.
- Refactored common logic (browserbase initialization and result list) to avoid redundancy.
- Added internal async handling with asyncio.to_thread() for non-blocking execution in async_mode.
- Maintained backward compatibility for existing synchronous functionality.

Author: tuhinmallick

scrapegraphai/docloaders/browser_base.py

@@ -13,6 +13,8 @@ def browser_base_fetch(api_key: str, project_id: str, link: List[str]) -> List[s
     - `api_key`: The API key provided by BrowserBase.
     - `project_id`: The ID of the project on BrowserBase where you want to fetch data from.
     - `link`: The URL or link that you want to fetch data from.
+    - `text_content`: A boolean flag to specify whether to return only the text content (True) or the full HTML (False).
+    - `async_mode`: A boolean flag that determines whether the function runs asynchronously (True) or synchronously (False, default).
 
     It initializes a Browserbase object with the given API key and project ID, 
     then uses this object to load the specified link. 
@@ -35,6 +37,8 @@ def browser_base_fetch(api_key: str, project_id: str, link: List[str]) -> List[s
         api_key (str): The API key provided by BrowserBase.
         project_id (str): The ID of the project on BrowserBase where you want to fetch data from.
         link (str): The URL or link that you want to fetch data from.
+        text_content (bool): Whether to return only the text content (True) or the full HTML (False). Defaults to True.
+        async_mode (bool): Whether to run the function asynchronously (True) or synchronously (False). Defaults to False.
 
     Returns:
         object: The result of the loading operation.
@@ -49,7 +53,22 @@ def browser_base_fetch(api_key: str, project_id: str, link: List[str]) -> List[s
     browserbase = Browserbase(api_key=api_key, project_id=project_id)
 
     result = []
-    for l in link:
-        result.append(browserbase.load(l, text_content=True))
+    # Define the async fetch logic for individual links
+    async def _async_fetch_link(l):
+        return await asyncio.to_thread(browserbase.load, l, text_content=text_content)
+
+    if async_mode:
+        # Asynchronously process each link
+        async def _async_browser_base_fetch():
+            for l in link:
+                result.append(await _async_fetch_link(l))
+            return result
+
+        # Run the async fetch function
+        result = asyncio.run(_async_browser_base_fetch())
+    else:
+        # Synchronous logic
+        for l in link:
+            result.append(browserbase.load(l, text_content=text_content))
 
     return result