Setting the file. One moment.
Subchapter 12.2
REFERENCE.mdMarkdown4 KBView on GitHub
# Start invocation
curl -X POST "https://api.browserbase.com/v1/functions/FUNCTION_ID/invoke" \
-H "Content-Type: application/json" \
-H "x-bb-api-key: $BROWSERBASE_API_KEY" \
-d '{"params": {"url": "https://example.com"}}'
# Response: {"id": "INVOCATION_ID"}
# Poll for result
curl "https://api.browserbase.com/v1/functions/invocations/INVOCATION_ID" \
-H "x-bb-api-key: $BROWSERBASE_API_KEY"async function invokeFunction(functionId: string, params: object) {
// Start invocation
const invokeRes = await fetch(
`https://api.browserbase.com/v1/functions/${functionId}/invoke`,
{
method: 'POST',
headers: {
'Content-Type': 'application/json',
'x-bb-api-key': process.env.BROWSERBASE_API_KEY!,
},
body: JSON.stringify({ params }),
}
);
const { id: invocationId } = await invokeRes.json();
// Poll until complete
while (true) {
await new Promise(r => setTimeout(r, 5000));
const statusRes = await fetch(
`https://api.browserbase.com/v1/functions/invocations/${invocationId}`,
{ headers: { 'x-bb-api-key': process.env.BROWSERBASE_API_KEY! } }
);
const result = await statusRes.json();
if (result.status === 'COMPLETED') return result.results;
if (result.status === 'FAILED') throw new Error(result.error);
}
}defineFn("scrape", async ({ session, params }) => {
const browser = await chromium.connectOverCDP(session.connectUrl);
const page = browser.contexts()[0]!.pages()[0]!;
await page.goto(params.url);
await page.waitForSelector(params.selector);
const items = await page.$$eval(params.selector, els =>
els.map(el => el.textContent?.trim())
);
return { url: params.url, items };
});defineFn("authenticated-action", async ({ session, params }) => {
const browser = await chromium.connectOverCDP(session.connectUrl);
const page = browser.contexts()[0]!.pages()[0]!;
// Login
await page.goto("https://example.com/login");
await page.fill('[name="email"]', params.email);
await page.fill('[name="password"]', params.password);
await page.click('button[type="submit"]');
await page.waitForURL('**/dashboard');
// Do authenticated work
const data = await page.textContent('.user-data');
return { data };
});defineFn("safe-scrape", async ({ session, params }) => {
const browser = await chromium.connectOverCDP(session.connectUrl);
const page = browser.contexts()[0]!.pages()[0]!;
try {
await page.goto(params.url, { timeout: 30000 });
await page.waitForSelector(params.selector, { timeout: 10000 });
const data = await page.textContent(params.selector);
return { success: true, data };
} catch (error) {
return {
success: false,
error: error instanceof Error ? error.message : 'Unknown error'
};
}
});# Check .env file has credentials
cat .env
# Or set for current shell
export BROWSERBASE_API_KEY="your_key"# Make sure SDK is installed
pnpm add @browserbasehq/sdk-functions
# Or use npx
npx @browserbasehq/sdk-functions dev index.tswaitForSelector instead of sleepsession.connectUrl is being used correctlychromium.connectOverCDP() not chromium.launch()