Implemented JavaScript example for configuring Gemini model parameters

javascript/README.md

@@ -9,4 +9,29 @@ This directory contains examples of working with the Gemini API using the
 
 For example:
 
+<<<<<<< Updated upstream
     node text_generation.test.js
+=======
+## Running the examples
+
+### Chat example
+```bash
+npm run chat
+```
+
+### Configure model parameters example
+```bash
+npm run configure-model
+```
+
+## Running tests
+```bash
+npm test
+```
+
+## Examples
+
+- `chat.js` - Shows how to create a chat session and maintain conversation context
+- `configure_model_parameters.js` - Shows how to configure generation parameters like temperature and token limits
+- `text_generation.js` - Shows how to generate text with Gemini
+>>>>>>> Stashed changes

javascript/configure_model_parameters.js

@@ -0,0 +1,67 @@
+/**
+ * Copyright 2024 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+// [START gemini_javascript_configure_model_parameters]
+import {GoogleGenAI} from '@google/genai';
+
+/**
+ * Configure model parameters example with the Gemini API
+ * 
+ * This example demonstrates how to configure generation parameters:
+ * - candidate_count: Number of candidates to generate
+ * - stop_sequences: Sequences that stop generation
+ * - max_output_tokens: Maximum number of tokens to generate
+ * - temperature: Controls randomness of generation
+ */
+export async function configureModelParameters() {
+  try {
+    // Initialize the client with your API key
+    const GEMINI_API_KEY = process.env.GEMINI_API_KEY;
+    const ai = new GoogleGenAI({apiKey: GEMINI_API_KEY});
+
+    // Get the Gemini model
+    const model = ai.getGenerativeModel({model: 'gemini-pro'});
+
+    // Configure generation parameters
+    const generationConfig = {
+      candidateCount: 1,
+      stopSequences: ['x'],
+      maxOutputTokens: 20,
+      temperature: 1.0,
+    };
+
+    // Generate content with configured parameters
+    const result = await model.generateContent({
+      contents: [{text: 'Tell me a story about a magic backpack.'}],
+      generationConfig,
+    });
+
+    console.log('Generated text:', result.response.text());
+  } catch (error) {
+    console.error('Error:', error);
+  }
+}
+
+// Run the example if this file is executed directly
+if (process.argv[1] === new URL(import.meta.url).pathname) {
+  if (!process.env.GEMINI_API_KEY) {
+    console.error('Please set the GEMINI_API_KEY environment variable');
+    process.exit(1);
+  }
+
+  configureModelParameters().catch(console.error);
+}
+// [END gemini_javascript_configure_model_parameters] 

javascript/configure_model_parameters.test.js

@@ -0,0 +1,45 @@
+/**
+ * Copyright 2024 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+// [START gemini_javascript_configure_model_parameters_test]
+import {jest} from '@jest/globals';
+import {configureModelParameters} from './configure_model_parameters.js';
+
+describe('Configure Model Parameters Example', () => {
+  const originalEnv = process.env;
+
+  beforeEach(() => {
+    jest.resetModules();
+    process.env = {...originalEnv};
+    process.env.GEMINI_API_KEY = 'test-api-key';
+  });
+
+  afterEach(() => {
+    process.env = originalEnv;
+  });
+
+  test('should throw error if API key is not set', async () => {
+    delete process.env.GEMINI_API_KEY;
+
+    await expect(async () => {
+      await configureModelParameters();
+    }).rejects.toThrow();
+  });
+
+  // Note: Add more tests as needed for specific functionality
+  // Currently keeping tests minimal as they would require mocking the Gemini API
+});
+// [END gemini_javascript_configure_model_parameters_test] 

javascript/package.json

@@ -3,7 +3,13 @@
   "version": "1.0.0",
   "main": "",
   "scripts": {
+<<<<<<< Updated upstream
     "test": ""
+=======
+    "test": "node --experimental-vm-modules node_modules/jest/bin/jest.js",
+    "chat": "node chat.js",
+    "configure-model": "node configure_model_parameters.js"
+>>>>>>> Stashed changes
   },
   "keywords": [],
   "author": "",
@@ -12,5 +18,11 @@
   "type": "module",
   "dependencies": {
     "@google/genai": "^0.3.1"
+<<<<<<< Updated upstream
+=======
+  },
+  "devDependencies": {
+    "jest": "^29.7.0"
+>>>>>>> Stashed changes
   }
 }