Struct WebA2AClient 

pub struct WebA2AClient {
    pub http: HttpClient,
}

Web-friendly A2A client that wraps both HTTP and WebSocket clients.

This is the main entry point for interacting with A2A agents from web applications. It provides a unified interface for both HTTP and WebSocket transports, with automatic fallback and retry logic.

Examples

HTTP-only client

use a2a_client::WebA2AClient;

let client = WebA2AClient::new_http("http://localhost:8080".to_string());

Client configured for streaming

use a2a_client::WebA2AClient;

let client = WebA2AClient::new_http("http://localhost:8080".to_string());

Auto-detecting transports

use a2a_client::WebA2AClient;

let client = WebA2AClient::auto_connect("http://localhost:8080").await?;

Fields

http: HttpClient

HTTP client for A2A requests and streaming

Implementations

impl WebA2AClient

pub fn builder() -> WebA2AClientBuilder

Create a builder for configuring the client.

Examples

use a2a_client::WebA2AClient;

let client = WebA2AClient::builder()
    .http_url("http://localhost:8080")
    .build();

pub fn new_http(base_url: String) -> Self

Create a new client with HTTP transport only.

Arguments

• base_url - Base URL of the A2A agent (e.g., http://localhost:8080)

Examples

use a2a_client::WebA2AClient;

let client = WebA2AClient::new_http("http://localhost:8080".to_string());

pub async fn auto_connect(base_url: &str) -> Result<Self>

Auto-connect to an agent, attempting to detect available transports.

Probes for WebSocket support by fetching the agent card from the server. Falls back to HTTP-only if agent card fetching fails or if WebSocket is not supported.

Arguments

• base_url - Base URL of the A2A agent

Examples

use a2a_client::WebA2AClient;

let client = WebA2AClient::auto_connect("http://localhost:8080").await?;