Struct A2aClient 

pub struct A2aClient { /* private fields */ }

A2A Client for communicating with A2A-compliant agent servers

Implementations

impl A2aClient

pub fn new(config: ClientConfig) -> Result<Self>

Create a new A2A client with the given configuration

pub fn with_server(server_url: &str) -> Result<Self>

Create a client with default configuration for a given server URL

pub fn server_url(&self) -> &str

Get the server base URL

pub async fn fetch_agent_card(&self) -> Result<AgentCard>

Fetch the agent card, using cache if available and valid

pub async fn invalidate_card_cache(&self)

Invalidate the cached agent card and endpoint

pub fn get_rpc_url(card: &AgentCard) -> Option<&str>

Get the JSON-RPC endpoint URL from the agent card

pub async fn send_message( &self, message: Message, session_token: Option<&str>, ) -> Result<SendMessageResponse>

Send a message to the agent and receive a response (Task or Message)

pub async fn poll_task( &self, task_id: &str, session_token: Option<&str>, ) -> Result<Task>

Poll a task by ID

pub async fn poll_until_complete( &self, task_id: &str, session_token: Option<&str>, ) -> Result<Task>

Poll a task until it reaches a terminal state or max polls exceeded

pub async fn perform_oauth_interactive(&self) -> Result<String>

Perform interactive OAuth flow (prompts user to visit URL and paste callback)

pub async fn start_oauth_flow(&self) -> Result<(String, String)>

Start OAuth flow and return authorization URL (for programmatic use)

Trait Implementations

impl Clone for A2aClient

fn clone(&self) -> A2aClient

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for A2aClient

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.