OpenDHT

OpenDHT is a lightweight C++17 Distributed Hash Table implementation providing an easy to use distributed in-memory data store.

Key Features

Lightweight and scalable, designed for large networks and small devices
High resilience to network disruption
Public key cryptography layer providing optional data signature and encryption
IPv4 and IPv6 support
Clean and powerful C++17 map API with Python 3 bindings
REST API with optional HTTP client+server with push notification support

Every node in the network can read and write values to the store. Values are distributed over the network with redundancy.

Quick Example

import opendht as dht

node = dht.DhtRunner()
node.run()

# Join the network through any running node,
# here using a known bootstrap node.
node.bootstrap("bootstrap.jami.net", "4222")

# blocking call (provide callback arguments to make the call non-blocking)
node.put(dht.InfoHash.get("unique_key"), dht.Value(b'some binary data'))

results = node.get(dht.InfoHash.get("unique_key"))
for r in results:
    print(r)

Documentation

For more information, examples, and documentation, visit: https://opendht.net

License

OpenDHT is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 3 of the License, or (at your option) any later version.