adding samples, test, lints

Author: Guiners

genai/test/textgen-chat-stream-with-txt.test.js

@@ -0,0 +1,29 @@
+// Copyright 2025 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
+//
+//     https://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.
+
+'use strict';
+
+const {assert} = require('chai');
+const {describe, it} = require('mocha');
+
+const projectId = process.env.CAIP_PROJECT_ID;
+const sample = require('../text-generation/textgen-chat-stream-with-txt.js');
+
+describe('textgen-chat-stream-with-txt', () => {
+  it('should generate text content from a mute video', async function () {
+    this.timeout(100000);
+    const output = await sample.generateContent(projectId);
+    assert.isTrue(output);
+  });
+});

genai/text-generation/textgen-async-with-txt.js

@@ -30,13 +30,13 @@ async function generateContent(
     location: location,
   });
 
-
   const response = await ai.models.generateContent({
     model: 'gemini-2.5-flash',
-    contents: 'Compose a song about the adventures of a time-traveling nuggets.',
+    contents:
+      'Compose a song about the adventures of a time-traveling nuggets.',
     config: {
       responseMimeType: 'text/plain',
-    }
+    },
   });
 
   console.log(response.text);

genai/text-generation/textgen-chat-stream-with-txt.js

@@ -0,0 +1,49 @@
+// Copyright 2025 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
+//
+//     https://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.
+
+'use strict';
+
+// [START googlegenaisdk_textgen_chat_stream_with_txt]
+const {GoogleGenAI} = require('@google/genai');
+
+const GOOGLE_CLOUD_PROJECT = process.env.GOOGLE_CLOUD_PROJECT;
+const GOOGLE_CLOUD_LOCATION = process.env.GOOGLE_CLOUD_LOCATION || 'global';
+
+async function generateContent(
+  projectId = GOOGLE_CLOUD_PROJECT,
+  location = GOOGLE_CLOUD_LOCATION
+) {
+  const ai = new GoogleGenAI({
+    vertexai: true,
+    project: projectId,
+    location: location,
+  });
+
+  const chatSession = ai.chats.create({
+    model: 'gemini-2.5-flash',
+  });
+
+  for await (const chunk of await chatSession.sendMessageStream({
+    message: 'Why lava is red?',
+  })) {
+    console.log(chunk.text);
+  }
+
+  return true;
+}
+// [END googlegenaisdk_textgen_chat_stream_with_txt]
+
+module.exports = {
+  generateContent,
+};

genai/text-generation/textgen-chat-with-txt.js

@@ -35,11 +35,11 @@ async function generateContent(
     history: [
       {
         role: 'user',
-        parts: [{ text: 'Hello' }],
+        parts: [{text: 'Hello'}],
       },
       {
         role: 'model',
-        parts: [{ text: 'Great to meet you. What would you like to know?' }],
+        parts: [{text: 'Great to meet you. What would you like to know?'}],
       },
     ],
   });

genai/text-generation/textgen-config-with-txt.js

@@ -46,7 +46,7 @@ async function generateContent(
   const response = await ai.models.generateContent({
     model: 'gemini-2.5-flash',
     contents: 'Why is the sky blue?',
-    config: config
+    config: config,
   });
 
   console.log(response.text);

genai/text-generation/textgen-with-mute-video.js

@@ -30,7 +30,6 @@ async function generateContent(
     location: location,
   });
 
-
   const response = await ai.models.generateContent({
     model: 'gemini-2.5-flash',
     contents: [
@@ -40,7 +39,8 @@ async function generateContent(
           {
             fileData: {
               mimeType: 'video/mp4',
-              fileUri: 'gs://cloud-samples-data/generative-ai/video/ad_copy_from_video.mp4',
+              fileUri:
+                'gs://cloud-samples-data/generative-ai/video/ad_copy_from_video.mp4',
             },
           },
           {