Update app.py

app.py

@@ -15,7 +15,6 @@ app = FastAPI(
 )
 
 # Initialize the IRIS FDSN client
-# This is placed in a global scope to be reused across requests
 try:
     client = Client("IRIS")
     logging.info("Successfully initialized IRIS FDSN client.")
@@ -28,7 +27,7 @@ def greet_json():
     """
     A simple 'Hello World' endpoint.
     """
-    return {"Hello": "World!", "message": "Go to /earthquakes to fetch data, or /docs for the API documentation."}
+    return {"Hello": "World!", "message": "Go to /earthquakes to fetch data, or /docs for the API documentation.  Dayi"}
 
 @app.get("/earthquakes")
 async def get_earthquake_catalog():
@@ -43,39 +42,36 @@ async def get_earthquake_catalog():
         )
 
     try:
-        # Define the query parameters
         starttime = UTCDateTime("2015-01-05")
         endtime = UTCDateTime("2016-03-05")
         min_magnitude = 5.0
 
         logging.info(f"Fetching events from {starttime} to {endtime} with min magnitude {min_magnitude}.")
-
-        # Fetch the earthquake catalog from the IRIS web service
         catalog = client.get_events(
             starttime=starttime,
             endtime=endtime,
             minmagnitude=min_magnitude,
         )
+        logging.info(f"Found {len(catalog)} events. Now processing.")
 
-        logging.info(f"Found {len(catalog)} events.")
-
-        # Process the catalog into a more friendly JSON format
         earthquake_list = []
+        # --- Key Change Start ---
+        # Loop through each event and process it individually to prevent one bad event from crashing the app.
         for event in catalog:
-            # Ensure the event has a preferred origin and magnitude to avoid errors
-            if not event.preferred_origin() or not event.preferred_magnitude():
-                continue
+            try:
+                # Ensure the event has a preferred origin and magnitude
+                if not event.preferred_origin() or not event.preferred_magnitude():
+                    continue # Skip to the next event if essential data is missing
+
+                origin = event.preferred_origin()
+                magnitude = event.preferred_magnitude()
 
-            origin = event.preferred_origin()
-            magnitude = event.preferred_magnitude()
-            
-            # Extract place description
-            place = "N/A"
-            if event.descriptions:
-                place = event.descriptions[0].text
+                # Safely extract the place description
+                place = "N/A"
+                if event.descriptions: # Check if the descriptions list exists and is not empty
+                    place = event.descriptions[0].text
 
-            earthquake_list.append(
-                {
+                earthquake_list.append({
                     "time": origin.time.isoformat(),
                     "latitude": origin.latitude,
                     "longitude": origin.longitude,
@@ -83,14 +79,19 @@ async def get_earthquake_catalog():
                     "magnitude": magnitude.mag,
                     "magnitude_type": magnitude.magnitude_type,
                     "place": place,
-                }
-            )
-        
+                })
+            except Exception as e:
+                # If a single event fails, log it and continue with the others.
+                logging.warning(f"Skipping one event due to a processing error: {e}")
+                continue
+        # --- Key Change End ---
+
+        logging.info(f"Successfully processed {len(earthquake_list)} events.")
         return JSONResponse(content={"earthquakes": earthquake_list})
 
     except Exception as e:
-        logging.error(f"An error occurred while fetching data from IRIS FDSN: {e}")
+        logging.error(f"A major error occurred during the request: {e}")
         raise HTTPException(
             status_code=500, # Internal Server Error
-            detail=f"An internal error occurred while fetching data from the external service: {e}",
-        )
+            detail=f"An internal error occurred: {e}",
+        )