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swift-libp2p/swift-libp2p 0.1.9
Swift implementation of libp2p, a modular & extensible networking stack
⭐️ 20
🕓 19 weeks ago
iOS macOS
.package(url: "https://github.com/swift-libp2p/swift-libp2p.git", from: "0.1.9")


Swift LibP2P

Swift Package Manager compatible Build & Test (macos and linux)

The Swift implementation of the libp2p networking stack

Table of Contents


libp2p is a networking stack and library modularized out of The IPFS Project, and bundled separately for other tools to use.

libp2p is the product of a long, and arduous quest of understanding -- a deep dive into the internet's network stack, and plentiful peer-to-peer protocols from the past. Building large-scale peer-to-peer systems has been complex and difficult in the last 15 years, and libp2p is a way to fix that. It is a "network stack" -- a protocol suite -- that cleanly separates concerns, and enables sophisticated applications to only use the protocols they absolutely need, without giving up interoperability and upgradeability. libp2p grew out of IPFS, but it is built so that lots of people can use it, for lots of different projects.

Docs & Examples


To learn more, check out the following resources:


  • ‼️ This is a work in progress ‼️
  • ‼️ Please don't use swift-libp2p in anything other than experimental projects until it reaches 1.0 ‼️
  • ‼️ Help it get there sooner by contributing ‼️


Include the following dependency in your Package.swift file

let package = Package(
    dependencies: [
        .package(name: "LibP2P", url: "https://github.com/swift-libp2p/swift-libp2p.git", .upToNextMajor(from: "0.1.0"))
            dependencies: [
                .product(name: "LibP2P", package: "swift-libp2p"),



import LibP2P
import LibP2PNoise
import LibP2PMPLEX

/// Configure your Libp2p networking stack...
let lib = try Application(.development, peerID: PeerID(.Ed25519))
lib.servers.use(.tcp(host: "", port: 0))

/// Register your routes handlers...
/// - Note: Uses the same syntax as swift-vapor
try lib.routes()

/// Start libp2p

/// Do some networking stuff... 📡

/// At some later point, when you're done with libp2p...


  • List of packages currently in existence for swift libp2p:
  • Legend: 🟢 = kinda works, 🟡 = doesn't really work yet, 🔴 = not started yet, but on the radar
Name Status Description Build (macOS & Linux)
swift-libp2p 🟢 swift-libp2p entry point Build & Test (macos and linux)
swift-libp2p-core 🟢 Core interfaces, types, and abstractions Build & Test (macos and linux)
Protocol Negotiation
swift-libp2p-mss 🟢 MultistreamSelect transport upgrader (embedded) Build & Test (macos and linux)
swift-libp2p-tcp 🟢 TCP transport (embedded) N/A
swift-libp2p-udp 🟡 UDP transport (embedded) N/A
swift-libp2p-websocket 🟢 WebSocket transport Build & Test (macos and linux)
swift-libp2p-http 🔴 TODO: HTTP1 transport N/A
swift-libp2p-http2 🔴 TODO: HTTP2 transport N/A
Encrypted Channels
swift-libp2p-plaintext 🟢 Plaintext channel Build & Test (macos and linux)
swift-libp2p-noise 🟢 Noise crypto channel Build & Test (macos and linux)
swift-libp2p-tls 🔴 TODO: TLS 1.3+ crypto channel N/A
Stream Muxers
swift-libp2p-mplex 🟢 MPLEX stream multiplexer Build & Test (macos and linux)
swift-libp2p-yamux 🔴 TODO: YAMUX stream multiplexer N/A
Private Network
- - - N/A
NAT Traversal
- - - N/A
swift-libp2p-peerstore 🔴 TODO: Reference implementation of peer metadata storage component (embedded) N/A
Connection Manager
swift-libp2p-connection-manager 🔴 TODO: Reference implementation of connection manager (embedded) N/A
swift-libp2p-record 🔴 TODO: Record type and validator logic N/A
swift-libp2p-kad-dht 🔴 TODO: Kademlia-like router N/A
swift-libp2p-kbucket 🔴 TODO: Kademlia routing table helper types N/A
swift-libp2p-pubsub 🔴 TODO: Multiple pubsub implementations N/A
swift-libp2p-rpc 🔴 TODO: A simple RPC library for libp2p N/A
swift-libp2p-dnsaddr 🟡 A DNSAddr Resolver Build & Test (macos)
swift-libp2p-mdns 🟡 MulticastDNS for LAN discovery Build & Test (macos)
swift-libp2p-identify 🟢 IPFS Identify Protocols (embedded) Build & Test (macos and linux)
Testing and examples
swift-libp2p-testing 🔴 TODO: A collection of testing utilities for libp2p N/A


Name Description Build (macOS & Linux)
swift-libp2p-crypto Crypto abstractions for Keys, Hashes and Ciphers Build & Test (macos and linux)
swift-multibase Self Identifying Base Encodings Build & Test (macos and linux)
swift-multicodec Multiformat Codecs Build & Test (macos and linux)
swift-multihash Self Identifying Hashes Build & Test (macos and linux)
swift-multiaddr Self Identifying Addresses Build & Test (macos and linux)
swift-peer-id Peer IDs Build & Test (macos and linux)
swift-bases Base encodings & decodings Build & Test (macos and linux)
swift-varint Protocol Buffer Variable Integers Build & Test (macos and linux)
swift-cid Content Identifiers Build & Test (macos and linux)
swift-nio Network application framework N/A


/// TODO


Contributions are welcomed! This code is very much a proof of concept. I can guarantee you there's a better / safer way to accomplish the same results. Any suggestions, improvements, or even just critques, are welcome!

Let's make this code better together! 🤝



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