Struct BrowserSessionPool 

pub struct BrowserSessionPool { /* private fields */ }

Available on crate feature browser only.

A pool of browser sessions keyed by user ID.

Use this in multi-user agent platforms where each user needs an isolated browser instance. Sessions are created lazily via get_or_create and cleaned up via release or cleanup_all.

Example

use adk_browser::{BrowserConfig, BrowserSessionPool};

let pool = BrowserSessionPool::new(BrowserConfig::default(), 10);

// In a tool's execute(), resolve session from user context:
let session = pool.get_or_create("user_123").await?;
session.navigate("https://example.com").await?;

// On shutdown:
pool.cleanup_all().await;

Implementations

impl BrowserSessionPool

pub fn new(config: BrowserConfig, max_sessions: usize) -> BrowserSessionPool

Create a new session pool.

max_sessions limits the number of concurrent browser sessions. When the limit is reached, get_or_create will return an error.

pub async fn get_or_create( &self, user_id: &str, ) -> Result<Arc<BrowserSession>, AdkError>

Get an existing session for the user, or create a new one.

The session is started automatically if newly created. If the session exists but is stale, it will be reconnected.

pub async fn release(&self, user_id: &str) -> Result<(), AdkError>

Release and stop a user’s browser session.

pub async fn cleanup_all(&self)

Stop and remove all sessions. Call during graceful shutdown.

pub async fn active_count(&self) -> usize

Number of active sessions in the pool.

pub async fn active_users(&self) -> Vec<String>

List all user IDs with active sessions.