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Bedrock Agentcore  >  Operations  >  start_browser_session

start_browser_session

Operation

start_browser_session async

start_browser_session(input: StartBrowserSessionInput, plugins: list[Plugin] | None = None) -> StartBrowserSessionOutput

Creates and initializes a browser session in Amazon Bedrock AgentCore. The session enables agents to navigate and interact with web content, extract information from websites, and perform web-based tasks as part of their response generation.

To create a session, you must specify a browser identifier and a name. You can also configure the viewport dimensions to control the visible area of web content. The session remains active until it times out or you explicitly stop it using the StopBrowserSession operation.

The following operations are related to StartBrowserSession:

Parameters:

Name Type Description Default
input StartBrowserSessionInput

An instance of StartBrowserSessionInput.

required
plugins list[Plugin] | None

A list of callables that modify the configuration dynamically. Changes made by these plugins only apply for the duration of the operation execution and will not affect any other operation invocations.

None

Returns:

Type Description
StartBrowserSessionOutput

An instance of StartBrowserSessionOutput.

Input

StartBrowserSessionInput dataclass

Dataclass for StartBrowserSessionInput structure.

Attributes

browser_identifier class-attribute instance-attribute
browser_identifier: str | None = None

The unique identifier of the browser to use for this session. This identifier specifies which browser environment to initialize for the session.

certificates class-attribute instance-attribute
certificates: list[Certificate] | None = None

A list of certificates to install in the browser session.

client_token class-attribute instance-attribute
client_token: str | None = None

A unique, case-sensitive identifier to ensure that the API request completes no more than one time. If this token matches a previous request, Amazon Bedrock AgentCore ignores the request, but does not return an error. This parameter helps prevent the creation of duplicate sessions if there are temporary network issues.

enterprise_policies class-attribute instance-attribute
enterprise_policies: list[BrowserEnterprisePolicy] | None = None

A list of files containing enterprise policies for the browser.

extensions class-attribute instance-attribute
extensions: list[BrowserExtension] | None = None

A list of browser extensions to load into the browser session.

filesystem_configurations class-attribute instance-attribute
filesystem_configurations: list[ToolsFileSystemConfiguration] | None = None

The file system configurations to mount into the browser session. Use these configurations to mount your own Amazon Simple Storage Service (Amazon S3) Files or Amazon Elastic File System (Amazon EFS) access points. Your session can then read and write your data. If you don't specify this field, no additional file systems are mounted.

name class-attribute instance-attribute
name: str | None = None

The name of the browser session. This name helps you identify and manage the session. The name does not need to be unique.

profile_configuration class-attribute instance-attribute
profile_configuration: BrowserProfileConfiguration | None = None

The browser profile configuration to use for this session. A browser profile contains persistent data such as cookies and local storage that can be reused across multiple browser sessions. If specified, the session initializes with the profile's stored data, enabling continuity for tasks that require authentication or personalized settings.

proxy_configuration class-attribute instance-attribute
proxy_configuration: ProxyConfiguration | None = None

Optional proxy configuration for routing browser traffic through customer-specified proxy servers. When provided, enables HTTP Basic authentication via Amazon Web Services Secrets Manager and domain-based routing rules. Requires secretsmanager:GetSecretValue IAM permission for the specified secret ARNs.

session_timeout_seconds class-attribute instance-attribute
session_timeout_seconds: int = 3600

The duration in seconds (time-to-live) after which the session automatically terminates, regardless of ongoing activity. Defaults to 3600 seconds (1 hour). Recommended minimum: 60 seconds. Maximum allowed: 28,800 seconds (8 hours).

trace_id class-attribute instance-attribute
trace_id: str | None = None

The trace identifier for request tracking.

trace_parent class-attribute instance-attribute
trace_parent: str | None = None

The parent trace information for distributed tracing.

view_port class-attribute instance-attribute
view_port: ViewPort | None = None

The dimensions of the browser viewport for this session. This determines the visible area of the web content and affects how web pages are rendered. If not specified, Amazon Bedrock AgentCore uses a default viewport size.

Output

StartBrowserSessionOutput dataclass

Dataclass for StartBrowserSessionOutput structure.

Attributes

browser_identifier instance-attribute
browser_identifier: str

The identifier of the browser.

created_at instance-attribute
created_at: datetime

The timestamp when the browser session was created.

session_id instance-attribute
session_id: str

The unique identifier of the created browser session.

streams class-attribute instance-attribute
streams: BrowserSessionStream | None = None

The streams associated with this browser session. These include the automation stream and live view stream.