From ba6e10f1dcc869f6bf7d5fa2185b9fa165e25364 Mon Sep 17 00:00:00 2001
From: Eric Dong <itseric@google.com>
Date: Mon, 12 May 2025 20:24:04 -0400
Subject: [PATCH 01/10] feat(genai): Add GenAI SDK samples (1)

---
 genai/package.json                        | 27 +++++++++++++++
 genai/test/textgen-with-txt.test.js       | 28 ++++++++++++++++
 genai/text-generation/textgen-with-txt.js | 41 +++++++++++++++++++++++
 3 files changed, 96 insertions(+)
 create mode 100644 genai/package.json
 create mode 100644 genai/test/textgen-with-txt.test.js
 create mode 100644 genai/text-generation/textgen-with-txt.js

diff --git a/genai/package.json b/genai/package.json
new file mode 100644
index 0000000000..1786d292d9
--- /dev/null
+++ b/genai/package.json
@@ -0,0 +1,27 @@
+{
+  "name": "nodejs-genai-samples",
+  "private": true,
+  "license": "Apache-2.0",
+  "author": "Google LLC",
+  "engines": {
+    "node": ">=16.0.0"
+  },
+  "files": [
+    "*.js"
+  ],
+  "scripts": {
+    "test": "c8 mocha -p -j 2 --timeout 2400000 test/*.test.js test/**/*.test.js"
+  },
+  "dependencies": {
+    "@google/genai": "^0.13.0",
+    "axios": "^1.6.2",
+    "supertest": "^7.0.0"
+  },
+  "devDependencies": {
+    "c8": "^10.0.0",
+    "chai": "^4.5.0",
+    "mocha": "^10.0.0",
+    "sinon": "^18.0.0",
+    "uuid": "^10.0.0"
+  }
+}
diff --git a/genai/test/textgen-with-txt.test.js b/genai/test/textgen-with-txt.test.js
new file mode 100644
index 0000000000..a6f772a3a4
--- /dev/null
+++ b/genai/test/textgen-with-txt.test.js
@@ -0,0 +1,28 @@
+// 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-with-txt.js');
+
+describe('textgen-with-txt', async () => {
+  it('should generate text content from a text prompt', async () => {
+    const output = await sample.generateContent(projectId);
+    assert(output.length > 0);
+  });
+});
diff --git a/genai/text-generation/textgen-with-txt.js b/genai/text-generation/textgen-with-txt.js
new file mode 100644
index 0000000000..7f9e45a7f1
--- /dev/null
+++ b/genai/text-generation/textgen-with-txt.js
@@ -0,0 +1,41 @@
+// 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_with_txt]
+const {GoogleGenAI} = require('@google/genai');
+
+async function generateContent(
+  projectId = process.env.GOOGLE_CLOUD_PROJECT,
+  location = process.env.GOOGLE_CLOUD_LOCATION || 'global'
+) {
+  const ai = new GoogleGenAI({
+    vertexai: true,
+    project: projectId,
+    location: location,
+  });
+
+  const response = await ai.models.generateContent({
+    model: 'gemini-2.0-flash',
+    contents: 'How does AI work?',
+  });
+
+  return response.text;
+}
+// [END googlegenaisdk_textgen_with_txt]
+
+module.exports = {
+  generateContent,
+};

From 58f7a434527a2b1d2fd27c4c995ed79773576b2d Mon Sep 17 00:00:00 2001
From: Eric Dong <itseric@google.com>
Date: Tue, 13 May 2025 08:11:00 -0400
Subject: [PATCH 02/10] Improve readability and asserts

---
 genai/test/textgen-with-txt.test.js       | 4 +++-
 genai/text-generation/textgen-with-txt.js | 7 +++++--
 2 files changed, 8 insertions(+), 3 deletions(-)

diff --git a/genai/test/textgen-with-txt.test.js b/genai/test/textgen-with-txt.test.js
index a6f772a3a4..596e9c62a4 100644
--- a/genai/test/textgen-with-txt.test.js
+++ b/genai/test/textgen-with-txt.test.js
@@ -23,6 +23,8 @@ const sample = require('../text-generation/textgen-with-txt.js');
 describe('textgen-with-txt', async () => {
   it('should generate text content from a text prompt', async () => {
     const output = await sample.generateContent(projectId);
-    assert(output.length > 0);
+    assert(
+      output.length > 0 && output.includes('AI') && output.includes('models')
+    );
   });
 });
diff --git a/genai/text-generation/textgen-with-txt.js b/genai/text-generation/textgen-with-txt.js
index 7f9e45a7f1..ed9dcb1798 100644
--- a/genai/text-generation/textgen-with-txt.js
+++ b/genai/text-generation/textgen-with-txt.js
@@ -17,9 +17,12 @@
 // [START googlegenaisdk_textgen_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 = process.env.GOOGLE_CLOUD_PROJECT,
-  location = process.env.GOOGLE_CLOUD_LOCATION || 'global'
+  projectId = GOOGLE_CLOUD_PROJECT,
+  location = GOOGLE_CLOUD_LOCATION
 ) {
   const ai = new GoogleGenAI({
     vertexai: true,

From cff6de19afdb3cd3c94bf862b1983ac4e856bb95 Mon Sep 17 00:00:00 2001
From: Eric Dong <itseric@google.com>
Date: Tue, 13 May 2025 08:32:44 -0400
Subject: [PATCH 03/10] Add streaming example

---
 genai/test/textgen-with-txt-stream.test.js    | 28 +++++++++++
 .../textgen-with-txt-stream.js                | 49 +++++++++++++++++++
 genai/text-generation/textgen-with-txt.js     |  2 +
 3 files changed, 79 insertions(+)
 create mode 100644 genai/test/textgen-with-txt-stream.test.js
 create mode 100644 genai/text-generation/textgen-with-txt-stream.js

diff --git a/genai/test/textgen-with-txt-stream.test.js b/genai/test/textgen-with-txt-stream.test.js
new file mode 100644
index 0000000000..6e818a89cb
--- /dev/null
+++ b/genai/test/textgen-with-txt-stream.test.js
@@ -0,0 +1,28 @@
+// 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-with-txt-stream.js');
+
+describe('textgen-with-txt-stream', async () => {
+  it('should generate streaming text content from a text prompt', async () => {
+    const output = await sample.generateContent(projectId);
+    assert(output.length > 0 && output.includes('sky'));
+  });
+});
diff --git a/genai/text-generation/textgen-with-txt-stream.js b/genai/text-generation/textgen-with-txt-stream.js
new file mode 100644
index 0000000000..061151a5fa
--- /dev/null
+++ b/genai/text-generation/textgen-with-txt-stream.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_with_txt_stream]
+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 response = await ai.models.generateContentStream({
+    model: 'gemini-2.0-flash',
+    contents: 'Why is the sky blue?',
+  });
+
+  let response_text = '';
+  for await (const chunk of response) {
+    response_text += chunk.text;
+    console.log(chunk.text);
+  }
+  return response_text;
+}
+// [END googlegenaisdk_textgen_with_txt_stream]
+
+module.exports = {
+  generateContent,
+};
diff --git a/genai/text-generation/textgen-with-txt.js b/genai/text-generation/textgen-with-txt.js
index ed9dcb1798..ea44a4009a 100644
--- a/genai/text-generation/textgen-with-txt.js
+++ b/genai/text-generation/textgen-with-txt.js
@@ -35,6 +35,8 @@ async function generateContent(
     contents: 'How does AI work?',
   });
 
+  console.log(response.text);
+
   return response.text;
 }
 // [END googlegenaisdk_textgen_with_txt]

From c6711992ea41a9dce74df7e8209970f97ef2216c Mon Sep 17 00:00:00 2001
From: Eric Dong <itseric@google.com>
Date: Tue, 13 May 2025 09:30:32 -0400
Subject: [PATCH 04/10] Add image example

---
 genai/test/textgen-with-txt-img.test.js       | 28 ++++++++++
 genai/text-generation/textgen-with-txt-img.js | 53 +++++++++++++++++++
 2 files changed, 81 insertions(+)
 create mode 100644 genai/test/textgen-with-txt-img.test.js
 create mode 100644 genai/text-generation/textgen-with-txt-img.js

diff --git a/genai/test/textgen-with-txt-img.test.js b/genai/test/textgen-with-txt-img.test.js
new file mode 100644
index 0000000000..fc4e4deb1b
--- /dev/null
+++ b/genai/test/textgen-with-txt-img.test.js
@@ -0,0 +1,28 @@
+// 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-with-txt-img.js');
+
+describe('textgen-with-txt-img', async () => {
+  it('should generate text content from a text prompt and an image', async () => {
+    const output = await sample.generateContent(projectId);
+    assert(output.length > 0 && output.includes('image'));
+  });
+});
diff --git a/genai/text-generation/textgen-with-txt-img.js b/genai/text-generation/textgen-with-txt-img.js
new file mode 100644
index 0000000000..ec4b45200a
--- /dev/null
+++ b/genai/text-generation/textgen-with-txt-img.js
@@ -0,0 +1,53 @@
+// 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_with_txt_img]
+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 image = {
+    fileData: {
+      fileUri: 'gs://cloud-samples-data/generative-ai/image/scones.jpg',
+      mimeType: 'image/jpeg',
+    },
+  };
+
+  const response = await ai.models.generateContent({
+    model: 'gemini-2.0-flash',
+    contents: [image, 'What is shown in this image?'],
+  });
+
+  console.log(response.text);
+
+  return response.text;
+}
+// [END googlegenaisdk_textgen_with_txt_img]
+
+module.exports = {
+  generateContent,
+};

From 6552dda3beededdfaeca63f24806ec3c759b9eae Mon Sep 17 00:00:00 2001
From: Eric Dong <itseric@google.com>
Date: Tue, 13 May 2025 09:48:10 -0400
Subject: [PATCH 05/10] Add video example

---
 genai/test/textgen-with-video.test.js       | 28 ++++++++++
 genai/text-generation/textgen-with-video.js | 59 +++++++++++++++++++++
 2 files changed, 87 insertions(+)
 create mode 100644 genai/test/textgen-with-video.test.js
 create mode 100644 genai/text-generation/textgen-with-video.js

diff --git a/genai/test/textgen-with-video.test.js b/genai/test/textgen-with-video.test.js
new file mode 100644
index 0000000000..0f967cdfe0
--- /dev/null
+++ b/genai/test/textgen-with-video.test.js
@@ -0,0 +1,28 @@
+// 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-with-video.js');
+
+describe('textgen-with-video', async () => {
+  it('should generate text content from a text prompt and a video', async () => {
+    const output = await sample.generateContent(projectId);
+    assert(output.length > 0 && output.includes('video'));
+  });
+});
diff --git a/genai/text-generation/textgen-with-video.js b/genai/text-generation/textgen-with-video.js
new file mode 100644
index 0000000000..5ae4182522
--- /dev/null
+++ b/genai/text-generation/textgen-with-video.js
@@ -0,0 +1,59 @@
+// 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_with_video]
+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 prompt = `
+  Analyze the provided video file, including its audio.
+  Summarize the main points of the video concisely.
+  Create a chapter breakdown with timestamps for key sections or topics discussed.
+ `;
+
+  const video = {
+    fileData: {
+      fileUri: 'gs://cloud-samples-data/generative-ai/video/pixel8.mp4',
+      mimeType: 'video/mp4',
+    },
+  };
+
+  const response = await ai.models.generateContent({
+    model: 'gemini-2.0-flash',
+    contents: [video, prompt],
+  });
+
+  console.log(response.text);
+
+  return response.text;
+}
+// [END googlegenaisdk_textgen_with_video]
+
+module.exports = {
+  generateContent,
+};

From c6cbd3b67bbde5283d7dca059fd0f50a8222a91d Mon Sep 17 00:00:00 2001
From: Eric Dong <itseric@google.com>
Date: Tue, 13 May 2025 09:57:12 -0400
Subject: [PATCH 06/10] Improve relibiity in tests

---
 genai/test/textgen-with-txt.test.js | 4 +---
 1 file changed, 1 insertion(+), 3 deletions(-)

diff --git a/genai/test/textgen-with-txt.test.js b/genai/test/textgen-with-txt.test.js
index 596e9c62a4..d3d2473774 100644
--- a/genai/test/textgen-with-txt.test.js
+++ b/genai/test/textgen-with-txt.test.js
@@ -23,8 +23,6 @@ const sample = require('../text-generation/textgen-with-txt.js');
 describe('textgen-with-txt', async () => {
   it('should generate text content from a text prompt', async () => {
     const output = await sample.generateContent(projectId);
-    assert(
-      output.length > 0 && output.includes('AI') && output.includes('models')
-    );
+    assert(output.length > 0 && output.includes('AI'));
   });
 });

From 510347853165b6e3f78ffb3cc69090f373bbbe67 Mon Sep 17 00:00:00 2001
From: Eric Dong <itseric@google.com>
Date: Tue, 13 May 2025 10:28:41 -0400
Subject: [PATCH 07/10] Add multi image example

---
 genai/test/textgen-with-multi-img.test.js     | 28 ++++++++
 .../text-generation/textgen-with-multi-img.js | 64 +++++++++++++++++++
 2 files changed, 92 insertions(+)
 create mode 100644 genai/test/textgen-with-multi-img.test.js
 create mode 100644 genai/text-generation/textgen-with-multi-img.js

diff --git a/genai/test/textgen-with-multi-img.test.js b/genai/test/textgen-with-multi-img.test.js
new file mode 100644
index 0000000000..64f80a6442
--- /dev/null
+++ b/genai/test/textgen-with-multi-img.test.js
@@ -0,0 +1,28 @@
+// 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-with-multi-img.js');
+
+describe('textgen-with-multi-img', async () => {
+  it('should generate text content from a text prompt and multiple images', async () => {
+    const output = await sample.generateContent(projectId);
+    assert(output.length > 0 && output.includes('blueberry'));
+  });
+});
diff --git a/genai/text-generation/textgen-with-multi-img.js b/genai/text-generation/textgen-with-multi-img.js
new file mode 100644
index 0000000000..13edbe4bea
--- /dev/null
+++ b/genai/text-generation/textgen-with-multi-img.js
@@ -0,0 +1,64 @@
+// 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_with_multi_img]
+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 image1 = {
+    fileData: {
+      fileUri: 'gs://cloud-samples-data/generative-ai/image/scones.jpg',
+      mimeType: 'image/jpeg',
+    },
+  };
+
+  const image2 = {
+    fileData: {
+      fileUri: 'gs://cloud-samples-data/generative-ai/image/fruit.png',
+      mimeType: 'image/png',
+    },
+  };
+
+  const response = await ai.models.generateContent({
+    model: 'gemini-2.0-flash',
+    contents: [
+      image1,
+      image2,
+      'Generate a list of all the objects contained in both images.',
+    ],
+  });
+
+  console.log(response.text);
+
+  return response.text;
+}
+// [END googlegenaisdk_textgen_with_multi_img]
+
+module.exports = {
+  generateContent,
+};

From f34e1e12a0c957ca6fa0f2346c075be9412d32f3 Mon Sep 17 00:00:00 2001
From: Eric Dong <itseric@google.com>
Date: Tue, 13 May 2025 10:46:02 -0400
Subject: [PATCH 08/10] Add system instructions example

---
 genai/test/textgen-sys-instr-with-txt.test.js | 28 +++++++++
 .../textgen-sys-instr-with-txt.js             | 57 +++++++++++++++++++
 2 files changed, 85 insertions(+)
 create mode 100644 genai/test/textgen-sys-instr-with-txt.test.js
 create mode 100644 genai/text-generation/textgen-sys-instr-with-txt.js

diff --git a/genai/test/textgen-sys-instr-with-txt.test.js b/genai/test/textgen-sys-instr-with-txt.test.js
new file mode 100644
index 0000000000..0162870b75
--- /dev/null
+++ b/genai/test/textgen-sys-instr-with-txt.test.js
@@ -0,0 +1,28 @@
+// 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-sys-instr-with-txt.js');
+
+describe('textgen-sys-instr-with-txt', async () => {
+  it('should generate text content from a text prompt and with system instructions', async () => {
+    const output = await sample.generateContent(projectId);
+    assert(output.length > 0 && output.includes('bagels'));
+  });
+});
diff --git a/genai/text-generation/textgen-sys-instr-with-txt.js b/genai/text-generation/textgen-sys-instr-with-txt.js
new file mode 100644
index 0000000000..c08810d71d
--- /dev/null
+++ b/genai/text-generation/textgen-sys-instr-with-txt.js
@@ -0,0 +1,57 @@
+// 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_sys_instr_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 prompt = `
+  User input: I like bagels.
+  Answer:
+  `;
+
+  const response = await ai.models.generateContent({
+    model: 'gemini-2.0-flash',
+    contents: prompt,
+    config: {
+      systemInstruction: [
+        'You are a language translator.',
+        'Your mission is to translate text in English to French.',
+      ],
+    },
+  });
+
+  console.log(response.text);
+
+  return response.text;
+}
+// [END googlegenaisdk_textgen_sys_instr_with_txt]
+
+module.exports = {
+  generateContent,
+};

From 3e856b3e7bb65e26bac9d38bb18c55ce1207eeea Mon Sep 17 00:00:00 2001
From: Eric Dong <itseric@google.com>
Date: Tue, 13 May 2025 11:35:23 -0400
Subject: [PATCH 09/10] Add function calling example

---
 genai/test/tools-func-desc-with-txt.test.js | 28 +++++++
 genai/tools/tools-func-desc-with-txt.js     | 91 +++++++++++++++++++++
 2 files changed, 119 insertions(+)
 create mode 100644 genai/test/tools-func-desc-with-txt.test.js
 create mode 100644 genai/tools/tools-func-desc-with-txt.js

diff --git a/genai/test/tools-func-desc-with-txt.test.js b/genai/test/tools-func-desc-with-txt.test.js
new file mode 100644
index 0000000000..d627a52aaf
--- /dev/null
+++ b/genai/test/tools-func-desc-with-txt.test.js
@@ -0,0 +1,28 @@
+// 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('../tools/tools-func-desc-with-txt.js');
+
+describe('tools-func-desc-with-txt', async () => {
+  it('should generate a function call', async () => {
+    const output = await sample.generateContent(projectId);
+    assert(output.length > 0);
+  });
+});
diff --git a/genai/tools/tools-func-desc-with-txt.js b/genai/tools/tools-func-desc-with-txt.js
new file mode 100644
index 0000000000..6790de561a
--- /dev/null
+++ b/genai/tools/tools-func-desc-with-txt.js
@@ -0,0 +1,91 @@
+// 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_tools_func_desc_with_txt]
+const {GoogleGenAI, Type} = 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 get_album_sales = {
+    name: 'get_album_sales',
+    description: 'Gets the number of albums sold',
+    parameters: {
+      type: Type.OBJECT,
+      properties: {
+        albums: {
+          type: Type.ARRAY,
+          description: 'List of albums',
+          items: {
+            description: 'Album and its sales',
+            type: Type.OBJECT,
+            properties: {
+              album_name: {
+                type: Type.STRING,
+                description: 'Name of the music album',
+              },
+              copies_sold: {
+                type: Type.INTEGER,
+                description: 'Number of copies sold',
+              },
+            },
+          },
+        },
+      },
+    },
+  };
+
+  const sales_tool = {
+    functionDeclarations: [get_album_sales],
+  };
+
+  const prompt = `
+    At Stellar Sounds, a music label, 2024 was a rollercoaster. "Echoes of the Night", a debut synth-pop album, 
+    surprisingly sold 350,000 copies, while veteran rock band "Crimson Tide's" latest, "Reckless Hearts",
+    lagged at 120,000. Their up-and-coming indie artist, "Luna Bloom's" EP, "Whispers of Dawn",
+    secured 75,000 sales. The biggest disappointment was the highly-anticipated rap album "Street Symphony" 
+    only reaching 100,000 units. Overall, Stellar Sounds moved over 645,000 units this year, revealing unexpected
+    trends in music consumption.
+  `;
+
+  const response = await ai.models.generateContent({
+    model: 'gemini-2.0-flash',
+    contents: prompt,
+    config: {
+      tools: [sales_tool],
+      temperature: 0,
+    },
+  });
+
+  console.log(response.functionCalls);
+
+  return response.functionCalls;
+}
+// [END googlegenaisdk_tools_func_desc_with_txt]
+
+module.exports = {
+  generateContent,
+};

From 7407ca607549d7344be4ffcb83e155ccb4fecaab Mon Sep 17 00:00:00 2001
From: Eric Dong <itseric@google.com>
Date: Tue, 13 May 2025 11:56:00 -0400
Subject: [PATCH 10/10] Add count tokens example

---
 genai/count-tokens/counttoken-with-txt.js | 46 +++++++++++++++++++++++
 genai/test/counttoken-with-txt.test.js    | 28 ++++++++++++++
 2 files changed, 74 insertions(+)
 create mode 100644 genai/count-tokens/counttoken-with-txt.js
 create mode 100644 genai/test/counttoken-with-txt.test.js

diff --git a/genai/count-tokens/counttoken-with-txt.js b/genai/count-tokens/counttoken-with-txt.js
new file mode 100644
index 0000000000..eb82c348bf
--- /dev/null
+++ b/genai/count-tokens/counttoken-with-txt.js
@@ -0,0 +1,46 @@
+// 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_counttoken_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 countTokens(
+  projectId = GOOGLE_CLOUD_PROJECT,
+  location = GOOGLE_CLOUD_LOCATION
+) {
+  const ai = new GoogleGenAI({
+    vertexai: true,
+    project: projectId,
+    location: location,
+  });
+
+  const response = await ai.models.countTokens({
+    model: 'gemini-2.0-flash',
+    contents: 'What is the highest mountain in Africa?',
+  });
+
+  console.log(response);
+
+  return response.totalTokens;
+}
+// [END googlegenaisdk_counttoken_with_txt]
+
+module.exports = {
+  countTokens,
+};
diff --git a/genai/test/counttoken-with-txt.test.js b/genai/test/counttoken-with-txt.test.js
new file mode 100644
index 0000000000..85d8f2153b
--- /dev/null
+++ b/genai/test/counttoken-with-txt.test.js
@@ -0,0 +1,28 @@
+// 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('../count-tokens/counttoken-with-txt.js');
+
+describe('counttoken-with-txt', async () => {
+  it('should return the total token count for a text prompt', async () => {
+    const output = await sample.countTokens(projectId);
+    assert(output > 0);
+  });
+});