Panduan memulai: Membuat teks menggunakan Gemini API di Vertex AI

Dalam panduan memulai ini, Anda akan mengirim permintaan multimodal berikut ke Gemini API di Vertex AI dan melihat responsnya:

• Perintah teks
• Perintah dan gambar
• Perintah dan file video (dengan trek audio)

Anda dapat menyelesaikan panduan memulai ini dengan menggunakan SDK bahasa pemrograman di lingkungan lokal atau REST API.

Prasyarat

Untuk menyelesaikan panduan memulai ini, Anda harus:

• Menyiapkan Google Cloud project dan mengaktifkan Vertex AI API
• Di komputer lokal Anda:
  • Menginstal, melakukan inisialisasi, dan mengautentikasi dengan Google Cloud CLI
  • Menginstal SDK untuk bahasa Anda

Menyiapkan project Google Cloud

Siapkan Google Cloud project Anda dan aktifkan Vertex AI API.

1. Sign in to your Google Cloud account. If you're new to Google Cloud, create an account to evaluate how our products perform in real-world scenarios. New customers also get $300 in free credits to run, test, and deploy workloads.

2. In the Google Cloud console, on the project selector page, select or create a Google Cloud project.

   Go to project selector

3. Make sure that billing is enabled for your Google Cloud project.

4. Enable the Vertex AI API.

   Enable the API

5. In the Google Cloud console, on the project selector page, select or create a Google Cloud project.

   Go to project selector

6. Make sure that billing is enabled for your Google Cloud project.

7. Enable the Vertex AI API.

   Enable the API

Menginstal dan melakukan autentikasi dengan Google Cloud CLI

Untuk menggunakan Gemini API di Vertex AI, siapkan dan autentikasi Google Cloud CLI di komputer lokal Anda. Tidak seperti Gemini API di Google AI Studio, yang menggunakan kunci API, Gemini API di Vertex AI mengelola akses dengan Identity and Access Management.

1. Instal dan lakukan inisialisasiGoogle Cloud CLI.

2. Jika sebelumnya Anda telah menginstal gcloud CLI, pastikan komponen gcloud Anda diupdate dengan menjalankan perintah ini.

   gcloud components update

3. Untuk melakukan autentikasi dengan gcloud CLI, buat file Kredensial Default Aplikasi (ADC) lokal dengan menjalankan perintah ini. Alur web yang diluncurkan oleh perintah ini digunakan untuk memberikan kredensial pengguna Anda.

   gcloud auth application-default login

   Untuk informasi selengkapnya, lihat Menyiapkan Kredensial Default Aplikasi.

Menyiapkan SDK untuk bahasa pemrograman Anda

Di komputer lokal, klik salah satu tab berikut untuk menginstal SDK untuk bahasa pemrograman Anda.

Gen AI SDK for Python

Instal dan update Gen AI SDK for Python dengan menjalankan perintah ini.

pip install --upgrade google-genai

Gen AI SDK untuk Go

Instal dan update Gen AI SDK for Go dengan menjalankan perintah ini.

go get google.golang.org/genai

Gen AI SDK untuk Node.js

Instal dan update Gen AI SDK untuk Node.js dengan menjalankan perintah ini.

npm install @google/genai

Gen AI SDK untuk Java

Instal dan update Gen AI SDK untuk Java:

Maven

Tambahkan kode berikut ke pom.xml:

<dependencies>
  <dependency>
    <groupId>com.google.genai</groupId>
    <artifactId>google-genai</artifactId>
    <version>0.7.0</version>
  </dependency>
</dependencies>

C#

Instal paket Google.Cloud.AIPlatform.V1 dari NuGet. Gunakan metode pilihan Anda untuk menambahkan paket ke project. Misalnya, klik kanan project di Visual Studio, lalu pilih Manage NuGet Packages....

REST

1. Konfigurasikan variabel lingkungan Anda dengan memasukkan hal berikut. Ganti PROJECT_ID dengan ID Google Cloud project Anda.

   MODEL_ID="gemini-2.0-flash-001"
   PROJECT_ID="PROJECT_ID"

2. Gunakan Google Cloud CLI untuk menyediakan endpoint dengan menjalankan perintah ini.

   gcloud beta services identity create --service=aiplatform.googleapis.com --project=${PROJECT_ID}

Mengirim perintah ke Gemini API di Vertex AI

Gunakan kode berikut untuk mengirim perintah ke Gemini API di Vertex AI. Contoh ini menampilkan daftar nama yang mungkin untuk toko bunga khusus.

Anda dapat menjalankan kode dari command line, dengan menggunakan IDE, atau dengan menyertakan kode dalam aplikasi.

Gen AI SDK for Python

Instal

pip install --upgrade google-genai

Untuk mempelajari lebih lanjut, lihat dokumentasi referensi SDK.

Tetapkan variabel lingkungan untuk menggunakan Gen AI SDK dengan Vertex AI:

# Replace the `GOOGLE_CLOUD_PROJECT` and `GOOGLE_CLOUD_LOCATION` values
# with appropriate values for your project.
export GOOGLE_CLOUD_PROJECT=GOOGLE_CLOUD_PROJECT
export GOOGLE_CLOUD_LOCATION=global
export GOOGLE_GENAI_USE_VERTEXAI=True

from google import genai
from google.genai.types import HttpOptions

client = genai.Client(http_options=HttpOptions(api_version="v1"))
response = client.models.generate_content(
    model="gemini-2.5-flash",
    contents="How does AI work?",
)
print(response.text)
# Example response:
# Okay, let's break down how AI works. It's a broad field, so I'll focus on the ...
#
# Here's a simplified overview:
# ...

Gen AI SDK for Go

Pelajari cara menginstal atau mengupdate Gen AI SDK for Go.

Untuk mempelajari lebih lanjut, lihat dokumentasi referensi SDK.

Tetapkan variabel lingkungan untuk menggunakan Gen AI SDK dengan Vertex AI:

# Replace the `GOOGLE_CLOUD_PROJECT` and `GOOGLE_CLOUD_LOCATION` values
# with appropriate values for your project.
export GOOGLE_CLOUD_PROJECT=GOOGLE_CLOUD_PROJECT
export GOOGLE_CLOUD_LOCATION=global
export GOOGLE_GENAI_USE_VERTEXAI=True

import (
	"context"
	"fmt"
	"io"

	"google.golang.org/genai"
)

// generateWithText shows how to generate text using a text prompt.
func generateWithText(w io.Writer) error {
	ctx := context.Background()

	client, err := genai.NewClient(ctx, &genai.ClientConfig{
		HTTPOptions: genai.HTTPOptions{APIVersion: "v1"},
	})
	if err != nil {
		return fmt.Errorf("failed to create genai client: %w", err)
	}

	resp, err := client.Models.GenerateContent(ctx,
		"gemini-2.0-flash-001",
		genai.Text("How does AI work?"),
		nil,
	)
	if err != nil {
		return fmt.Errorf("failed to generate content: %w", err)
	}

	respText, err := resp.Text()
	if err != nil {
		return fmt.Errorf("failed to convert model response to text: %w", err)
	}
	fmt.Fprintln(w, respText)
	// Example response:
	// That's a great question! Understanding how AI works can feel like ...
	// ...
	// **1. The Foundation: Data and Algorithms**
	// ...

	return nil
}

Gen AI SDK for Node.js

Instal

npm install @google/genai

Untuk mempelajari lebih lanjut, lihat dokumentasi referensi SDK.

Tetapkan variabel lingkungan untuk menggunakan Gen AI SDK dengan Vertex AI:

# Replace the `GOOGLE_CLOUD_PROJECT` and `GOOGLE_CLOUD_LOCATION` values
# with appropriate values for your project.
export GOOGLE_CLOUD_PROJECT=GOOGLE_CLOUD_PROJECT
export GOOGLE_CLOUD_LOCATION=global
export GOOGLE_GENAI_USE_VERTEXAI=True

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.generateContent({
    model: 'gemini-2.0-flash',
    contents: 'How does AI work?',
  });

  console.log(response.text);

  return response.text;
}

Gen AI SDK for Java

Pelajari cara menginstal atau mengupdate Gen AI SDK for Java.

Untuk mempelajari lebih lanjut, lihat dokumentasi referensi SDK.

Tetapkan variabel lingkungan untuk menggunakan Gen AI SDK dengan Vertex AI:

# Replace the `GOOGLE_CLOUD_PROJECT` and `GOOGLE_CLOUD_LOCATION` values
# with appropriate values for your project.
export GOOGLE_CLOUD_PROJECT=GOOGLE_CLOUD_PROJECT
export GOOGLE_CLOUD_LOCATION=global
export GOOGLE_GENAI_USE_VERTEXAI=True

import com.google.genai.Client;
import com.google.genai.types.Content;
import com.google.genai.types.GenerateContentResponse;
import com.google.genai.types.HttpOptions;
import com.google.genai.types.Part;

public class GenerateContentWithText {

  public static void main(String[] args) {
    // TODO(developer): Replace these variables before running the sample.
    String modelId = "gemini-2.0-flash";
    generateContent(modelId);
  }

  public static String generateContent(String modelId) {
    // Initialize client that will be used to send requests. This client only needs to be created
    // once, and can be reused for multiple requests.
    try (Client client = Client.builder()
        .httpOptions(HttpOptions.builder().apiVersion("v1").build())
        .build()) {

      GenerateContentResponse response =
          client.models.generateContent(modelId, Content.fromParts(
                  Part.fromText("How does AI work?")),
              null);

      System.out.print(response.text());
      // Example response:
      // Okay, let's break down how AI works. It's a broad field, so I'll focus on the ...
      //
      // Here's a simplified overview:
      // ...
      return response.text();
    }
  }
}

C#

Untuk mengirim permintaan perintah, buat file C# (.cs) dan salin kode berikut ke dalam file. Tetapkan your-project-id ke Google Cloud project ID Anda. Setelah memperbarui nilai, jalankan kode.

using Google.Cloud.AIPlatform.V1;
using System;
using System.Threading.Tasks;

public class TextInputSample
{
    public async Task<string> TextInput(
        string projectId = "your-project-id",
        string location = "us-central1",
        string publisher = "google",
        string model = "gemini-2.0-flash-001")
    {

        var predictionServiceClient = new PredictionServiceClientBuilder
        {
            Endpoint = $"{location}-aiplatform.googleapis.com"
        }.Build();
        string prompt = @"What's a good name for a flower shop that specializes in selling bouquets of dried flowers?";

        var generateContentRequest = new GenerateContentRequest
        {
            Model = $"projects/{projectId}/locations/{location}/publishers/{publisher}/models/{model}",
            Contents =
            {
                new Content
                {
                    Role = "USER",
                    Parts =
                    {
                        new Part { Text = prompt }
                    }
                }
            }
        };

        GenerateContentResponse response = await predictionServiceClient.GenerateContentAsync(generateContentRequest);

        string responseText = response.Candidates[0].Content.Parts[0].Text;
        Console.WriteLine(responseText);

        return responseText;
    }
}

REST

Untuk mengirim permintaan perintah ini, jalankan perintah curl dari command line atau sertakan panggilan REST di aplikasi Anda.

curl -X POST \
-H "Authorization: Bearer $(gcloud auth print-access-token)" \
-H "Content-Type: application/json" \
https://aiplatform.googleapis.com/v1/projects/${PROJECT_ID}/locations/global/publishers/google/models/${MODEL_ID}:generateContent -d \
$'{
  "contents": {
    "role": "user",
    "parts": [
      {
        "text": "What\'s a good name for a flower shop that specializes in selling bouquets of dried flowers?"
      }
    ]
  }
}'

Model akan menampilkan respons. Perhatikan bahwa respons dihasilkan dalam bagian dengan setiap bagian dievaluasi secara terpisah untuk keamanan.

Mengirim perintah dan gambar ke Gemini API di Vertex AI

Gunakan kode berikut untuk mengirim perintah yang menyertakan teks dan gambar ke Gemini API di Vertex AI. Contoh ini menampilkan deskripsi gambar yang disediakan (gambar untuk contoh Java).

Gen AI SDK for Python

Instal

pip install --upgrade google-genai

Untuk mempelajari lebih lanjut, lihat dokumentasi referensi SDK.

Tetapkan variabel lingkungan untuk menggunakan Gen AI SDK dengan Vertex AI:

# Replace the `GOOGLE_CLOUD_PROJECT` and `GOOGLE_CLOUD_LOCATION` values
# with appropriate values for your project.
export GOOGLE_CLOUD_PROJECT=GOOGLE_CLOUD_PROJECT
export GOOGLE_CLOUD_LOCATION=global
export GOOGLE_GENAI_USE_VERTEXAI=True

from google import genai
from google.genai.types import HttpOptions, Part

client = genai.Client(http_options=HttpOptions(api_version="v1"))
response = client.models.generate_content(
    model="gemini-2.5-flash",
    contents=[
        "What is shown in this image?",
        Part.from_uri(
            file_uri="gs://cloud-samples-data/generative-ai/image/scones.jpg",
            mime_type="image/jpeg",
        ),
    ],
)
print(response.text)
# Example response:
# The image shows a flat lay of blueberry scones arranged on parchment paper. There are ...

Gen AI SDK for Go

Pelajari cara menginstal atau mengupdate Gen AI SDK for Go.

Untuk mempelajari lebih lanjut, lihat dokumentasi referensi SDK.

Tetapkan variabel lingkungan untuk menggunakan Gen AI SDK dengan Vertex AI:

# Replace the `GOOGLE_CLOUD_PROJECT` and `GOOGLE_CLOUD_LOCATION` values
# with appropriate values for your project.
export GOOGLE_CLOUD_PROJECT=GOOGLE_CLOUD_PROJECT
export GOOGLE_CLOUD_LOCATION=global
export GOOGLE_GENAI_USE_VERTEXAI=True

import (
	"context"
	"fmt"
	"io"

	genai "google.golang.org/genai"
)

// generateWithTextImage shows how to generate text using both text and image input
func generateWithTextImage(w io.Writer) error {
	ctx := context.Background()

	client, err := genai.NewClient(ctx, &genai.ClientConfig{
		HTTPOptions: genai.HTTPOptions{APIVersion: "v1"},
	})
	if err != nil {
		return fmt.Errorf("failed to create genai client: %w", err)
	}

	modelName := "gemini-2.0-flash-001"
	contents := []*genai.Content{
		{Parts: []*genai.Part{
			{Text: "What is shown in this image?"},
			{FileData: &genai.FileData{
				// Image source: https://storage.googleapis.com/cloud-samples-data/generative-ai/image/scones.jpg
				FileURI:  "gs://cloud-samples-data/generative-ai/image/scones.jpg",
				MIMEType: "image/jpeg",
			}},
		}},
	}

	resp, err := client.Models.GenerateContent(ctx, modelName, contents, nil)
	if err != nil {
		return fmt.Errorf("failed to generate content: %w", err)
	}

	respText, err := resp.Text()
	if err != nil {
		return fmt.Errorf("failed to convert model response to text: %w", err)
	}
	fmt.Fprintln(w, respText)

	// Example response:
	// The image shows an overhead shot of a rustic, artistic arrangement on a surface that ...

	return nil
}

Gen AI SDK for Node.js

Instal

npm install @google/genai

Untuk mempelajari lebih lanjut, lihat dokumentasi referensi SDK.

Tetapkan variabel lingkungan untuk menggunakan Gen AI SDK dengan Vertex AI:

# Replace the `GOOGLE_CLOUD_PROJECT` and `GOOGLE_CLOUD_LOCATION` values
# with appropriate values for your project.
export GOOGLE_CLOUD_PROJECT=GOOGLE_CLOUD_PROJECT
export GOOGLE_CLOUD_LOCATION=global
export GOOGLE_GENAI_USE_VERTEXAI=True

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;
}

Gen AI SDK for Java

Pelajari cara menginstal atau mengupdate Gen AI SDK for Java.

Untuk mempelajari lebih lanjut, lihat dokumentasi referensi SDK.

Tetapkan variabel lingkungan untuk menggunakan Gen AI SDK dengan Vertex AI:

# Replace the `GOOGLE_CLOUD_PROJECT` and `GOOGLE_CLOUD_LOCATION` values
# with appropriate values for your project.
export GOOGLE_CLOUD_PROJECT=GOOGLE_CLOUD_PROJECT
export GOOGLE_CLOUD_LOCATION=global
export GOOGLE_GENAI_USE_VERTEXAI=True

import com.google.genai.Client;
import com.google.genai.types.Content;
import com.google.genai.types.GenerateContentResponse;
import com.google.genai.types.HttpOptions;
import com.google.genai.types.Part;

public class GenerateContentWithTextAndImage {

  public static void main(String[] args) {
    // TODO(developer): Replace these variables before running the sample.
    String modelId = "gemini-2.0-flash";
    generateContent(modelId);
  }

  public static String generateContent(String modelId) {
    // Initialize client that will be used to send requests. This client only needs to be created
    // once, and can be reused for multiple requests.
    try (Client client = Client.builder()
        .httpOptions(HttpOptions.builder().apiVersion("v1").build())
        .build()) {

      GenerateContentResponse response =
          client.models.generateContent(modelId, Content.fromParts(
                  Part.fromText("What is shown in this image?"),
                  Part.fromUri("gs://cloud-samples-data/generative-ai/image/scones.jpg", "image/jpeg")),
              null);

      System.out.print(response.text());
      // Example response:
      // The image shows a flat lay of blueberry scones arranged on parchment paper. There are ...
      return response.text();
    }
  }
}

C#

Untuk mengirim permintaan perintah, buat file C# (.cs) dan salin kode berikut ke dalam file. Tetapkan your-project-id ke Google Cloud project ID Anda. Setelah memperbarui nilai, jalankan kode.

using Google.Api.Gax.Grpc;
using Google.Cloud.AIPlatform.V1;
using System.Text;
using System.Threading.Tasks;

public class GeminiQuickstart
{
    public async Task<string> GenerateContent(
        string projectId = "your-project-id",
        string location = "us-central1",
        string publisher = "google",
        string model = "gemini-2.0-flash-001"
    )
    {
        // Create client
        var predictionServiceClient = new PredictionServiceClientBuilder
        {
            Endpoint = $"{location}-aiplatform.googleapis.com"
        }.Build();

        // Initialize content request
        var generateContentRequest = new GenerateContentRequest
        {
            Model = $"projects/{projectId}/locations/{location}/publishers/{publisher}/models/{model}",
            GenerationConfig = new GenerationConfig
            {
                Temperature = 0.4f,
                TopP = 1,
                TopK = 32,
                MaxOutputTokens = 2048
            },
            Contents =
            {
                new Content
                {
                    Role = "USER",
                    Parts =
                    {
                        new Part { Text = "What's in this photo?" },
                        new Part { FileData = new() { MimeType = "image/png", FileUri = "gs://generativeai-downloads/images/scones.jpg" } }
                    }
                }
            }
        };

        // Make the request, returning a streaming response
        using PredictionServiceClient.StreamGenerateContentStream response = predictionServiceClient.StreamGenerateContent(generateContentRequest);

        StringBuilder fullText = new();

        // Read streaming responses from server until complete
        AsyncResponseStream<GenerateContentResponse> responseStream = response.GetResponseStream();
        await foreach (GenerateContentResponse responseItem in responseStream)
        {
            fullText.Append(responseItem.Candidates[0].Content.Parts[0].Text);
        }

        return fullText.ToString();
    }
}

REST

Anda dapat mengirim permintaan perintah ini dari IDE, atau Anda dapat menyematkan panggilan REST ke dalam aplikasi jika sesuai.

curl -X POST \
-H "Authorization: Bearer $(gcloud auth print-access-token)" \
-H "Content-Type: application/json" \
https://aiplatform.googleapis.com/v1/projects/${PROJECT_ID}/locations/global/publishers/google/models/${MODEL_ID}:generateContent -d \
$'{
  "contents": {
    "role": "user",
    "parts": [
      {
      "fileData": {
        "mimeType": "image/jpeg",
        "fileUri": "gs://generativeai-downloads/images/scones.jpg"
        }
      },
      {
        "text": "Describe this picture."
      }
    ]
  }
}'

Model akan menampilkan respons. Perhatikan bahwa respons dihasilkan dalam bagian dengan setiap bagian dievaluasi secara terpisah untuk keamanan.

Mengirim perintah dan video ke Gemini API di Vertex AI

Gunakan kode berikut untuk mengirim perintah yang menyertakan teks, audio, dan video ke Gemini API di Vertex AI. Contoh ini menampilkan deskripsi video yang diberikan, termasuk hal penting dari trek audio.

Anda dapat mengirim permintaan perintah ini menggunakan command line, menggunakan IDE, atau dengan menyertakan panggilan REST dalam aplikasi.

Gen AI SDK for Python

Instal

pip install --upgrade google-genai

Untuk mempelajari lebih lanjut, lihat dokumentasi referensi SDK.

Tetapkan variabel lingkungan untuk menggunakan Gen AI SDK dengan Vertex AI:

# Replace the `GOOGLE_CLOUD_PROJECT` and `GOOGLE_CLOUD_LOCATION` values
# with appropriate values for your project.
export GOOGLE_CLOUD_PROJECT=GOOGLE_CLOUD_PROJECT
export GOOGLE_CLOUD_LOCATION=global
export GOOGLE_GENAI_USE_VERTEXAI=True

from google import genai
from google.genai.types import HttpOptions, Part

client = genai.Client(http_options=HttpOptions(api_version="v1"))
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.
"""
response = client.models.generate_content(
    model="gemini-2.5-flash",
    contents=[
        Part.from_uri(
            file_uri="gs://cloud-samples-data/generative-ai/video/pixel8.mp4",
            mime_type="video/mp4",
        ),
        prompt,
    ],
)

print(response.text)
# Example response:
# Here's a breakdown of the video:
#
# **Summary:**
#
# Saeka Shimada, a photographer in Tokyo, uses the Google Pixel 8 Pro's "Video Boost" feature to ...
#
# **Chapter Breakdown with Timestamps:**
#
# * **[00:00-00:12] Introduction & Tokyo at Night:** Saeka Shimada introduces herself ...
# ...

Gen AI SDK for Go

Pelajari cara menginstal atau mengupdate Gen AI SDK for Go.

Untuk mempelajari lebih lanjut, lihat dokumentasi referensi SDK.

Tetapkan variabel lingkungan untuk menggunakan Gen AI SDK dengan Vertex AI:

# Replace the `GOOGLE_CLOUD_PROJECT` and `GOOGLE_CLOUD_LOCATION` values
# with appropriate values for your project.
export GOOGLE_CLOUD_PROJECT=GOOGLE_CLOUD_PROJECT
export GOOGLE_CLOUD_LOCATION=global
export GOOGLE_GENAI_USE_VERTEXAI=True

import (
	"context"
	"fmt"
	"io"

	genai "google.golang.org/genai"
)

// generateWithVideo shows how to generate text using a video input.
func generateWithVideo(w io.Writer) error {
	ctx := context.Background()

	client, err := genai.NewClient(ctx, &genai.ClientConfig{
		HTTPOptions: genai.HTTPOptions{APIVersion: "v1"},
	})
	if err != nil {
		return fmt.Errorf("failed to create genai client: %w", err)
	}

	modelName := "gemini-2.0-flash-001"
	contents := []*genai.Content{
		{Parts: []*genai.Part{
			{Text: `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.`},
			{FileData: &genai.FileData{
				FileURI:  "gs://cloud-samples-data/generative-ai/video/pixel8.mp4",
				MIMEType: "video/mp4",
			}},
		}},
	}

	resp, err := client.Models.GenerateContent(ctx, modelName, contents, nil)
	if err != nil {
		return fmt.Errorf("failed to generate content: %w", err)
	}

	respText, err := resp.Text()
	if err != nil {
		return fmt.Errorf("failed to convert model response to text: %w", err)
	}
	fmt.Fprintln(w, respText)

	// Example response:
	// Here's an analysis of the provided video file:
	//
	// **Summary**
	//
	// The video features Saeka Shimada, a photographer in Tokyo, who uses the new Pixel phone ...
	//
	// **Chapter Breakdown**
	//
	// *   **0:00-0:05**: Introduction to Saeka Shimada and her work as a photographer in Tokyo.
	// ...

	return nil
}

Gen AI SDK for Node.js

Instal

npm install @google/genai

Untuk mempelajari lebih lanjut, lihat dokumentasi referensi SDK.

Tetapkan variabel lingkungan untuk menggunakan Gen AI SDK dengan Vertex AI:

# Replace the `GOOGLE_CLOUD_PROJECT` and `GOOGLE_CLOUD_LOCATION` values
# with appropriate values for your project.
export GOOGLE_CLOUD_PROJECT=GOOGLE_CLOUD_PROJECT
export GOOGLE_CLOUD_LOCATION=global
export GOOGLE_GENAI_USE_VERTEXAI=True

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;
}

Gen AI SDK for Java

Pelajari cara menginstal atau mengupdate Gen AI SDK for Java.

Untuk mempelajari lebih lanjut, lihat dokumentasi referensi SDK.

Tetapkan variabel lingkungan untuk menggunakan Gen AI SDK dengan Vertex AI:

# Replace the `GOOGLE_CLOUD_PROJECT` and `GOOGLE_CLOUD_LOCATION` values
# with appropriate values for your project.
export GOOGLE_CLOUD_PROJECT=GOOGLE_CLOUD_PROJECT
export GOOGLE_CLOUD_LOCATION=global
export GOOGLE_GENAI_USE_VERTEXAI=True

import com.google.genai.Client;
import com.google.genai.types.Content;
import com.google.genai.types.GenerateContentResponse;
import com.google.genai.types.HttpOptions;
import com.google.genai.types.Part;

public class GenerateContentWithVideo {

  public static void main(String[] args) {
    // TODO(developer): Replace these variables before running the sample.
    String modelId = "gemini-2.0-flash";
    String prompt = " Analyze the provided video file, including its audio.\n"
        + "    Summarize the main points of the video concisely.\n"
        + "    Create a chapter breakdown with timestamps for key sections or topics discussed.";
    generateContent(modelId, prompt);
  }

  public static String generateContent(String modelId, String prompt) {
    // Initialize client that will be used to send requests. This client only needs to be created
    // once, and can be reused for multiple requests.
    try (Client client = Client.builder()
        .httpOptions(HttpOptions.builder().apiVersion("v1").build())
        .build()) {

      GenerateContentResponse response =
          client.models.generateContent(modelId, Content.fromParts(
                  Part.fromText(prompt),
                  Part.fromUri("gs://cloud-samples-data/generative-ai/video/pixel8.mp4", "video/mp4")),
              null);

      System.out.print(response.text());
      // Example response:
      // Here's a breakdown of the video:
      //
      // **Summary:**
      //
      // Saeka Shimada, a photographer in Tokyo, uses the Google Pixel 8 Pro's "Video Boost" feature
      // to ...
      //
      // **Chapter Breakdown with Timestamps:**
      //
      // * **[00:00-00:12] Introduction & Tokyo at Night:** Saeka Shimada introduces herself ...
      return response.text();
    }
  }
}

C#

Untuk mengirim permintaan perintah, buat file C# (.cs) dan salin kode berikut ke dalam file. Tetapkan your-project-id ke Google Cloud project ID Anda. Setelah memperbarui nilai, jalankan kode.

using Google.Cloud.AIPlatform.V1;
using System;
using System.Threading.Tasks;

public class VideoInputWithAudio
{
    public async Task<string> DescribeVideo(
        string projectId = "your-project-id",
        string location = "us-central1",
        string publisher = "google",
        string model = "gemini-2.0-flash-001")
    {

        var predictionServiceClient = new PredictionServiceClientBuilder
        {
            Endpoint = $"{location}-aiplatform.googleapis.com"
        }.Build();

        string prompt = @"Provide a description of the video.
The description should also contain anything important which people say in the video.";

        var generateContentRequest = new GenerateContentRequest
        {
            Model = $"projects/{projectId}/locations/{location}/publishers/{publisher}/models/{model}",
            Contents =
            {
                new Content
                {
                    Role = "USER",
                    Parts =
                    {
                        new Part { Text = prompt },
                        new Part { FileData = new() { MimeType = "video/mp4", FileUri = "gs://cloud-samples-data/generative-ai/video/pixel8.mp4" }}
                    }
                }
            }
        };

        GenerateContentResponse response = await predictionServiceClient.GenerateContentAsync(generateContentRequest);

        string responseText = response.Candidates[0].Content.Parts[0].Text;
        Console.WriteLine(responseText);

        return responseText;
    }
}

REST

curl -X POST \
-H "Authorization: Bearer $(gcloud auth print-access-token)" \
-H "Content-Type: application/json" \
https://aiplatform.googleapis.com/v1/projects/${PROJECT_ID}/locations/global/publishers/google/models/${MODEL_ID}:generateContent -d \
$'{
  "contents": {
    "role": "user",
    "parts": [
      {
      "fileData": {
        "mimeType": "video/mp4",
        "fileUri": "gs://cloud-samples-data/generative-ai/video/pixel8.mp4"
        }
      },
      {
        "text": "Provide a description of the video. The description should also contain anything important which people say in the video."
      }
    ]
  }
}'

Model akan menampilkan respons. Perhatikan bahwa respons dihasilkan dalam bagian dengan setiap bagian dievaluasi secara terpisah untuk keamanan.

Langkah berikutnya

• Pelajari Gemini API di Vertex AI lebih lanjut.
• Pelajari referensi Google Gen AI SDK.
• Pelajari cara memanggil model Vertex AI menggunakan library OpenAI.