Update app.py

app.py

@@ -1,73 +1,37 @@
+from langchain.utilities import SearxSearchWrapper
 import gradio as gr
-import requests
-import json
-import random
 
-# List of SearXNG instances to try
-SEARXNG_INSTANCES = [
-    "https://searx.be",
-    "https://searx.tiekoetter.com",
-    "https://searx.thegpm.org",
-    "https://searx.ebnar.xyz",
-    "https://searx.feneas.org",
-    # Add more instances here
-]
+# Initialize the SearxNG search wrapper
+# You can replace this URL with any SearXNG instance you prefer
+searx = SearxSearchWrapper(searx_host="https://searx.thegpm.org")
 
-def search_news(query, num_results=10):
-    # Shuffle the list of instances to distribute load
-    random.shuffle(SEARXNG_INSTANCES)
+def search_news(query, num_results=5):
+    try:
+        # Perform the search
+        search_results = searx.results(query, num_results=num_results)
+        
+        # Format the output
+        formatted_results = "Search Results:\n\n"
+        for i, result in enumerate(search_results, 1):
+            formatted_results += f"{i}. {result['title']}\n"
+            formatted_results += f"   URL: {result['link']}\n"
+            formatted_results += f"   Snippet: {result['snippet']}\n\n"
+        
+        return formatted_results
     
-    for searxng_url in SEARXNG_INSTANCES:
-        params = {
-            "q": query,
-            "categories": "news",
-            "format": "json",
-            "lang": "en",
-            "pageno": 1,
-            "time_range": "None",
-            "engines": "google_news,bing_news,yahoo_news",
-            "results": num_results
-        }
-        try:
-            response = requests.get(f"{searxng_url}/search", params=params, timeout=10)
-            response.raise_for_status()
-            results = response.json()
-            news_items = results.get("results", [])
-            if news_items:
-                return news_items, None
-        except requests.RequestException as e:
-            continue  # Try the next instance
-    
-    return [], "Unable to fetch results from any SearXNG instance. Please try again later."
-
-def format_news(news_items, error=None):
-    if error:
-        return f"Error: {error}"
-    
-    if not news_items:
-        return "No news items found."
-    
-    formatted_results = ""
-    for i, item in enumerate(news_items, 1):
-        formatted_results += f"{i}. {item['title']}\n"
-        formatted_results += f"   URL: {item['url']}\n"
-        formatted_results += f"   Published: {item.get('publishedDate', 'N/A')}\n"
-        formatted_results += f"   Content: {item.get('content', 'N/A')[:150]}...\n\n"
-    return formatted_results
-
-def gradio_search_news(query, num_results):
-    news_items, error = search_news(query, int(num_results))
-    return format_news(news_items, error)
+    except Exception as e:
+        return f"An error occurred: {str(e)}"
 
+# Create Gradio interface
 iface = gr.Interface(
-    fn=gradio_search_news,
+    fn=search_news,
     inputs=[
         gr.Textbox(label="Enter a news topic to search for"),
-        gr.Slider(minimum=1, maximum=20, value=10, step=1, label="Number of results")
+        gr.Slider(minimum=1, maximum=10, value=5, step=1, label="Number of results")
     ],
     outputs=gr.Textbox(label="Search Results", lines=20),
-    title="SearXNG News Search",
-    description="Search for news articles using SearXNG metasearch engine. If one instance fails, it will try others."
+    title="News Search with LangChain and SearXNG",
+    description="Search for news articles using SearXNG through LangChain."
 )
 
 iface.launch()