#1345 Add API endpoint for web search interaction

public/scripts/secrets.js

@@ -12,6 +12,7 @@ export const SECRET_KEYS = {
     AI21: 'api_key_ai21',
     SCALE_COOKIE: 'scale_cookie',
     PALM: 'api_key_palm',
+    SERPAPI: 'api_key_serpapi',
 }
 
 const INPUT_MAP = {

server.js

@@ -3528,6 +3528,9 @@ require('./src/classify').registerEndpoints(app, jsonParser);
 // Image captioning
 require('./src/caption').registerEndpoints(app, jsonParser);
 
+// Web search extension
+require('./src/serpapi').registerEndpoints(app, jsonParser);
+
 const tavernUrl = new URL(
     (cliArguments.ssl ? 'https://' : 'http://') +
     (listen ? '0.0.0.0' : '127.0.0.1') +

src/secrets.js

@@ -21,6 +21,7 @@ const SECRET_KEYS = {
     ONERING_URL: 'oneringtranslator_url',
     DEEPLX_URL: 'deeplx_url',
     PALM: 'api_key_palm',
+    SERPAPI: 'api_key_serpapi',
 }
 
 /**

src/serpapi.js

@@ -0,0 +1,39 @@
+const fetch = require('node-fetch').default;
+const { readSecret } = require('./secrets');
+
+/**
+ * Registers the SerpApi endpoints.
+ * @param {import("express").Express} app
+ * @param {any} jsonParser
+ */
+function registerEndpoints(app, jsonParser) {
+    app.post('/api/serpapi/search', jsonParser, async (request, response) => {
+        try {
+            const key = readSecret('serpapi_key');
+
+            if (!key) {
+                console.log('No SerpApi key found');
+                return response.sendStatus(401);
+            }
+
+            const { query } = request.body;
+            const result = await fetch(`https://serpapi.com/search.json?q=${encodeURIComponent(query)}&api_key=${key}`);
+
+            if (!result.ok) {
+                const text = await result.text();
+                console.log('SerpApi request failed', result.statusText, text);
+                return response.status(500).send(text);
+            }
+
+            const data = await result.json();
+            return response.json(data);
+        } catch (error) {
+            console.log(error);
+            return response.sendStatus(500);
+        }
+    });
+}
+
+module.exports = {
+    registerEndpoints,
+};