Add strikeLimit parameter and refresh docs

scraper_service.py

@@ -299,7 +299,17 @@ def wait_for_tables(page):
     return []
 
 
-def scrape_yahoo_options(symbol, expiration=None):
+def parse_strike_limit(value, default=25):
+    if value is None:
+        return default
+    try:
+        limit = int(value)
+    except (TypeError, ValueError):
+        return default
+    return limit if limit > 0 else default
+
+
+def scrape_yahoo_options(symbol, expiration=None, strike_limit=25):
     def parse_table(table_html, side):
         if not table_html:
             app.logger.warning("No %s table HTML for %s", side, symbol)
@@ -544,7 +554,7 @@ def scrape_yahoo_options(symbol, expiration=None):
     # ----------------------------------------------------------------------
     # Pruning logic
     # ----------------------------------------------------------------------
-    def prune_nearest(options, price_value, limit=26, side=""):
+    def prune_nearest(options, price_value, limit=25, side=""):
         if price_value is None:
             return options, 0
 
@@ -558,8 +568,18 @@ def scrape_yahoo_options(symbol, expiration=None):
         pruned_count = len(options) - len(pruned)
         return pruned, pruned_count
 
-    calls, pruned_calls = prune_nearest(calls_full, price, side="calls")
-    puts, pruned_puts = prune_nearest(puts_full, price, side="puts")
+    calls, pruned_calls = prune_nearest(
+        calls_full,
+        price,
+        limit=strike_limit,
+        side="calls",
+    )
+    puts, pruned_puts = prune_nearest(
+        puts_full,
+        price,
+        limit=strike_limit,
+        side="puts",
+    )
 
     def strike_range(opts):
         strikes = [o["Strike"] for o in opts if isinstance(o.get("Strike"), (int, float))]
@@ -593,12 +613,14 @@ def scrape_sync():
         or request.args.get("expiry")
         or request.args.get("date")
     )
+    strike_limit = parse_strike_limit(request.args.get("strikeLimit"), default=25)
     app.logger.info(
-        "Received /scrape_sync request for symbol=%s expiration=%s",
+        "Received /scrape_sync request for symbol=%s expiration=%s strike_limit=%s",
         symbol,
         expiration,
+        strike_limit,
     )
-    return jsonify(scrape_yahoo_options(symbol, expiration))
+    return jsonify(scrape_yahoo_options(symbol, expiration, strike_limit))
 
 
 if __name__ == "__main__":