turbomcp-transport-traits

Core transport traits and types for the TurboMCP Model Context Protocol SDK.

Overview

This crate provides the foundational abstractions that all transport implementations depend on:

• Traits: Transport, BidirectionalTransport, StreamingTransport, TransportFactory
• Types: TransportType, TransportState, TransportCapabilities, TransportMessage
• Errors: TransportError, TransportResult
• Config: LimitsConfig, TimeoutConfig, TlsConfig
• Metrics: TransportMetrics, AtomicMetrics

Usage

Transport implementations should depend on this crate and implement the Transport trait:

use turbomcp_transport_traits::{Transport, TransportResult, TransportMessage};
use async_trait::async_trait;

struct MyTransport { /* ... */ }

#[async_trait]
impl Transport for MyTransport {
    fn transport_type(&self) -> TransportType { /* ... */ }
    // ... other trait methods
}

Part of TurboMCP v3

This crate is part of the TurboMCP v3.0 restructuring effort to provide:

• Lean core: Only trait definitions and types (~800 LOC)
• No transport implementations: Implementations live in separate crates
• Foundation for all transports: STDIO, HTTP, WebSocket, TCP, Unix, gRPC

License

MIT