Format

examples/src/tools/google_scholar.ts

@@ -1,7 +1,7 @@
 import { SERPGoogleScholarAPITool } from "@langchain/community/tools/google_scholar";
 
 const scholar = new SERPGoogleScholarAPITool({
-  apiKey: process.env.SERPAPI_API_KEY
+  apiKey: process.env.SERPAPI_API_KEY,
 });
 
 (async () => {
@@ -12,4 +12,4 @@ const scholar = new SERPGoogleScholarAPITool({
   } catch (error) {
     console.error("Error querying Google Scholar via SerpApi:", error);
   }
-})();
+})();

libs/langchain-community/src/tools/google_scholar.ts

@@ -52,8 +52,7 @@ export class SERPGoogleScholarAPITool extends Tool {
     super(...arguments);
 
     // Retrieve API key from fields or environment variables.
-    const apiKey =
-      fields?.apiKey ?? getEnvironmentVariable("SERPAPI_API_KEY");
+    const apiKey = fields?.apiKey ?? getEnvironmentVariable("SERPAPI_API_KEY");
 
     // Throw an error if no API key is found.
     if (!apiKey) {
@@ -105,13 +104,15 @@ export class SERPGoogleScholarAPITool extends Tool {
         title: item.title, // Title of the article or paper.
         link: item.link, // Direct link to the article or paper.
         snippet: item.snippet, // Brief snippet or description.
-        publication_info: item.publication_info?.summary
-          ?.split(" - ") // Split the summary at hyphens.
-          .slice(1) // Remove the authors from the start of the string.
-          .join(" - ") ?? "", // Rejoin remaining parts as publication info.
-        authors: item.publication_info?.authors
-          ?.map((author: any) => author.name) // Extract the list of author names.
-          .join(", ") ?? "", // Join author names with a comma.
+        publication_info:
+          item.publication_info?.summary
+            ?.split(" - ") // Split the summary at hyphens.
+            .slice(1) // Remove the authors from the start of the string.
+            .join(" - ") ?? "", // Rejoin remaining parts as publication info.
+        authors:
+          item.publication_info?.authors
+            ?.map((author: any) => author.name) // Extract the list of author names.
+            .join(", ") ?? "", // Join author names with a comma.
         total_citations: item.inline_links?.cited_by?.total ?? "", // Total number of citations.
       })) ?? `No results found for ${input} on Google Scholar.`;
 

libs/langchain-community/src/tools/tests/google_scholar.int.test.ts

@@ -4,33 +4,34 @@ import { SERPGoogleScholarAPITool } from "../google_scholar.js";
 describe("SERPGoogleScholarAPITool", () => {
   test("should be setup with correct parameters", async () => {
     const instance = new SERPGoogleScholarAPITool({
-      apiKey: process.env.SERPAPI_API_KEY
+      apiKey: process.env.SERPAPI_API_KEY,
     });
     expect(instance.name).toBe("serp_google_scholar");
   });
 
   test("SERPGoogleScholarAPITool returns a string for valid query", async () => {
     const tool = new SERPGoogleScholarAPITool({
-      apiKey: process.env.SERPAPI_API_KEY
+      apiKey: process.env.SERPAPI_API_KEY,
     });
     const result = await tool.invoke("Artificial Intelligence");
     expect(typeof result).toBe("string");
   });
 
   test("SERPGoogleScholarAPITool returns non-empty string for valid query", async () => {
     const tool = new SERPGoogleScholarAPITool({
-      apiKey: process.env.SERPAPI_API_KEY
+      apiKey: process.env.SERPAPI_API_KEY,
     });
     const result = await tool.invoke("Artificial Intelligence");
     expect(result.length).toBeGreaterThan(0);
   });
 
   test("SERPGoogleScholarAPITool returns 'No results found' for bad query", async () => {
     const tool = new SERPGoogleScholarAPITool({
-      apiKey: process.env.SERPAPI_API_KEY
+      apiKey: process.env.SERPAPI_API_KEY,
     });
     const result = await tool.invoke("dsalkfjsdlfjasdflasdl");
-    expect(result).toBe("\"No results found for dsalkfjsdlfjasdflasdl on Google Scholar.\"");
+    expect(result).toBe(
+      '"No results found for dsalkfjsdlfjasdflasdl on Google Scholar."'
+    );
   });
-
 });