nostr_signaling 0.4.0

Nostr-based signaling library for Dart enabling arbitrary data exchange between peers with optional GZip compression and multi-relay redundancy.

0.4.0

• NostrConfig.load() / loadSync() now return non-nullable NostrConfig and auto-create the config file with a freshly generated key pair if it doesn't exist — no more null checks needed.
• NostrSignalingFactory simplified from 6 methods to 2:
  • create() now accepts relayUrls (list) and useCompression directly.
  • Removed createWithMultipleRelays, createWithGzipCompression, createWithGzipCompressionAndMultipleRelays — use create(relayUrls: [...], useCompression: true) instead.
  • createWithCustomRelays() unchanged for pre-built relay instances.
• Initial point files merged: both Singleton DI and Registry variants live in a single initial_point.dart with shared creation logic — less duplication.
• initialPointNostrSignalingFromConfig() and initialPointNostrSignalingRegistryFromConfig() no longer throw when the config file is missing (it's auto-created with a new key pair).

0.3.0

• EventCallback is now a class (not a typedef) with built-in deduplication via work_db — the same event hash is never processed twice.
• PayloadHashLength enum — choose between 32-bit, 64-bit, or full 256-bit payload hash to balance collision risk vs. overhead.
• Various test improvements and refactoring.

0.2.0

• NostrConfig — config file persistence with load() / loadSync() / save().
• initialPointNostrSignalingFromConfig() — singleton initial point that reads key pair and relays from a JSON config file (no required parameters).
• initialPointNostrSignalingRegistryFromConfig() — registry variant for multiple named instances from config files.
• initialPointNostrSignalingDefault() and initialPointNostrSignalingRegistryDefault() now try loading an existing config file before falling back to defaults.

0.1.0

• Initial release.
• INostrSignaling abstract interface for Nostr-based peer signaling.
• NostrSignalingImpl concrete implementation with single/multi-relay support.
• NostrRelayImpl concrete WebSocket relay implementation via dart_nostr.
• GzipCompressionEngine with automatic compressed-data detection.
• NostrSignalingFactory convenience factory with pre-configured factory methods.
• NostrKeys / NostrKeyPair key generation, import, and validation utilities.
• NostrTestKeys / NostrTestRelays constants for testing and development.
• Base64 content encoding for safe transport over Nostr.
• Concurrent publish/subscribe across multiple relays.