// Use Playwright functions on the page object
const page = stagehand.page;
await page.goto("https://github.com/browserbase");

// Use act() to execute individual actions
await page.act("click on the stagehand repo");

// Use Computer Use agents for larger actions
const agent = stagehand.agent({
    provider: "openai",
    model: "computer-use-preview",
});
await agent.execute("Get to the latest PR");

// Use extract() to read data from the page
const { author, title } = await page.extract({
  instruction: "extract the author and title of the PR",
  schema: z.object({
    author: z.string().describe("The username of the PR author"),
    title: z.string().describe("The title of the PR"),
  }),
});

# 用 pip
pip install stagehand python-dotenv

# 安裝playwright
python -m playwright install

# 裝 chromium 瀏覽器
python -m playwright install chromium

export BROWSERBASE_API_KEY="your_browserbase_api_key"
export BROWSERBASE_PROJECT_ID="your_browserbase_project_id"
export MODEL_API_KEY="your_model_api_key"  # OpenAI, Anthropic, etc.

import asyncio
import os
from stagehand import Stagehand, StagehandConfig
from dotenv import load_dotenv

load_dotenv()

async def main():
    config = StagehandConfig(
        env="BROWSERBASE",
        api_key=os.getenv("BROWSERBASE_API_KEY"),
        project_id=os.getenv("BROWSERBASE_PROJECT_ID"),
        model_name="gpt-4o",
        model_api_key=os.getenv("MODEL_API_KEY")
    )
    
    stagehand = Stagehand(config)
    
    try:
        await stagehand.init()
        page = stagehand.page
        
        await page.goto("https://docs.stagehand.dev/")
        await page.act("click the quickstart link")
        
        result = await page.extract("extract the main heading of the page")
        
        print(f"Extracted: {result}")
        
    finally:
        await stagehand.close()

if __name__ == "__main__":
    asyncio.run(main())

python main.py 

import asyncio
import os
from dotenv import load_dotenv
from stagehand import StagehandConfig, Stagehand

load_dotenv()

async def main():
    # 检查API密钥是否设置
    api_key = os.getenv("OPENAI_API_KEY")

    config = StagehandConfig(
        env="LOCAL",  # 本地运行
        # AI模型配置 - 使用环境变量
        model_name="gpt-4o-mini",  # 使用更便宜的模型
        model_api_key=api_key,  # 从环境变量读取

        # 本地运行配置
        headless=False,  # 显示浏览器窗口
        verbose=3,  # 详细日志
        debug_dom=True,  # DOM调试
    )

    # 使用配置创建Stagehand实例
    stagehand = Stagehand(config)

    # 初始化Stagehand（启动浏览器会话）
    await stagehand.init()

    # 获取页面对象，用于后续的页面操作
    page = stagehand.page

    await page.goto("https://rain.tips/")

    # # 使用observe()取得文章的連結
    blog_links = await page.observe("取得文章中的所有連結)
    print(f"✅ Page link: {blog_links}")

    await page.act(blog_links[0]) 
    data_post_1 = await page.extract("取得文章的標題和內文")
    print(f"✅ 文章資訊如下: {data_post_1}")

if __name__ == "__main__":
    asyncio.run(main())