Change query in input. Repeat search when no results were found (#42)

.actor/input_schema.json

@@ -8,7 +8,7 @@
             "title": "Search term or URL",
             "type": "string",
             "description": "Enter Google Search keywords or a URL of a specific web page. The keywords might include the [advanced search operators](https://blog.apify.com/how-to-scrape-google-like-a-pro/). Examples:\n\n- <code>san francisco weather</code>\n- <code>https://www.cnn.com</code>\n- <code>function calling site:openai.com</code>",
-            "prefill": "fast web browser in RAG pipelines",
+            "prefill": "web browser for RAG pipelines -site:reddit.com",
             "editor": "textfield",
             "pattern": "[^\\s]+"
         },

src/crawlers.ts

@@ -84,6 +84,10 @@ async function createAndStartSearchCrawler(
             // remove results with URL starting with '/search?q=' (google return empty search results for images)
             results = results.filter((result) => !result.url!.startsWith('/search?q='));
 
+            if (results.length === 0) {
+                throw new Error(`No results found for search request: ${request.url}`);
+            }
+
             // limit the number of search results to the maxResults
             results = results.slice(0, request.userData?.maxResults ?? results.length);
             log.info(`Extracted ${results.length} results: \n${results.map((r) => r.url).join('\n')}`);