Struct Client 

pub struct Client {
    pub api_key: Option<String>,
    pub secret_key: Option<String>,
    pub host: String,
    pub inner_client: Client,
}

The main HTTP/WebSocket client for the Limitless Exchange API.

Handles HMAC-SHA256 request signing using the scoped token format:

Canonical message: {ISO-8601 timestamp}\n{HTTP METHOD}\n{request path + query}\n{body}

Headers: lmts-api-key, lmts-timestamp (ISO-8601), lmts-signature (Base64).

Also supports legacy X-API-Key authentication for backward compatibility.

Fields

api_key: Option<String>

Token ID (for scoped tokens) or legacy API key.

secret_key: Option<String>

Base64-encoded secret (for scoped HMAC tokens). Set to None to fall back to legacy X-API-Key auth.

host: String

Base URL of the Limitless Exchange API.

inner_client: Client

The inner reqwest HTTP client with connection pooling.

Implementations

impl Client

pub fn new( api_key: Option<String>, secret_key: Option<String>, host: String, ) -> Self

Create a new Client.

pub async fn get<T: DeserializeOwned + Send + 'static>( &self, url_path: &str, request: Option<String>, ) -> Result<T, LimitlessError>

pub async fn get_signed<T: DeserializeOwned + Send + 'static>( &self, url_path: &str, request: Option<String>, ) -> Result<T, LimitlessError>

pub async fn post_signed<T: DeserializeOwned + Send + 'static>( &self, url_path: &str, raw_request_body: Option<String>, ) -> Result<T, LimitlessError>

pub async fn delete_signed<T: DeserializeOwned + Send + 'static>( &self, url_path: &str, ) -> Result<T, LimitlessError>

pub async fn wss_connect( &self, _request: Option<String>, authenticated: bool, _timeout_secs: Option<u64>, ) -> Result<WebSocketStream<MaybeTlsStream<TcpStream>>, LimitlessError>

Establish a raw WebSocket connection to the Limitless Socket.IO endpoint.

Connects to wss://ws.limitless.exchange/socket.io/?EIO=4&transport=websocket and returns a WebSocketStream ready for reading/writing. The caller is responsible for the Socket.IO protocol framing (Engine.IO open, namespace connect, event emit/receive) on top of this stream.

Arguments

• _request — Optional initial subscription payload (sent as Socket.IO frame).
• authenticated — If true, the X-API-Key header is sent with the WebSocket upgrade request, enabling private channels (positions, order events) that require authentication.
• _timeout_secs — Optional connection timeout.

Trait Implementations

impl Clone for Client

fn clone(&self) -> Client

Returns a duplicate of the value.

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

Performs copy-assignment from source.