Add NostrGossip

Signed-off-by: Yuki Kishimoto <yukikishimoto@protonmail.com>

Author: yukibtc

CHANGELOG.md

@@ -33,7 +33,7 @@
 ### Changed
 
 - Bump uniffi to 0.29.4 (https://github.com/rust-nostr/nostr-sdk-ffi/pull/49)
-- Bump nostr from 0.43.0 to b20ef99 (see the Upstream CHANGELOG for more details)
+- Bump nostr from 0.43.0 to 7ddc15f8 (see the Upstream CHANGELOG for more details)
 
 ## v0.43.0 - 2025/07/28
 

Cargo.lock

@@ -50,12 +50,14 @@ logger = ["dep:tracing", "dep:tracing-subscriber"]
 async-trait = "0.1"
 async-wsocket = "0.13"
 futures-util = "0.3"
-nostr = { git = "https://github.com/rust-nostr/nostr", rev = "b20ef9941cccb4163e7bddd3cb4cc4c42c6b24f4", features = ["std"] }
-nostr-connect = { git = "https://github.com/rust-nostr/nostr", rev = "b20ef9941cccb4163e7bddd3cb4cc4c42c6b24f4", optional = true }
-nostr-lmdb = { git = "https://github.com/rust-nostr/nostr", rev = "b20ef9941cccb4163e7bddd3cb4cc4c42c6b24f4", optional = true }
-nostr-ndb = { git = "https://github.com/rust-nostr/nostr", rev = "b20ef9941cccb4163e7bddd3cb4cc4c42c6b24f4", optional = true }
-nostr-sdk  = {git = "https://github.com/rust-nostr/nostr", rev = "b20ef9941cccb4163e7bddd3cb4cc4c42c6b24f4", default-features = false }
-nwc = { git = "https://github.com/rust-nostr/nostr", rev = "b20ef9941cccb4163e7bddd3cb4cc4c42c6b24f4", optional = true }
+nostr = { git = "https://github.com/rust-nostr/nostr", rev = "7ddc15f8df4e96625a9aa8f8af4d3e5600335004", features = ["std"] }
+nostr-connect = { git = "https://github.com/rust-nostr/nostr", rev = "7ddc15f8df4e96625a9aa8f8af4d3e5600335004", optional = true }
+nostr-gossip = { git = "https://github.com/rust-nostr/nostr", rev = "7ddc15f8df4e96625a9aa8f8af4d3e5600335004" }
+nostr-gossip-memory = { git = "https://github.com/rust-nostr/nostr", rev = "7ddc15f8df4e96625a9aa8f8af4d3e5600335004" }
+nostr-lmdb = { git = "https://github.com/rust-nostr/nostr", rev = "7ddc15f8df4e96625a9aa8f8af4d3e5600335004", optional = true }
+nostr-ndb = { git = "https://github.com/rust-nostr/nostr", rev = "7ddc15f8df4e96625a9aa8f8af4d3e5600335004", optional = true }
+nostr-sdk  = {git = "https://github.com/rust-nostr/nostr", rev = "7ddc15f8df4e96625a9aa8f8af4d3e5600335004", default-features = false }
+nwc = { git = "https://github.com/rust-nostr/nostr", rev = "7ddc15f8df4e96625a9aa8f8af4d3e5600335004", optional = true }
 tokio = { version = "1", features = ["sync"] }
 tracing = { version = "0.1", features = ["std"], optional = true }
 tracing-subscriber = { version = "0.3", optional = true }

Cargo.toml

@@ -9,6 +9,7 @@ use uniffi::Object;
 
 use super::{Client, ClientOptions};
 use crate::database::NostrDatabase;
+use crate::gossip::NostrGossip;
 use crate::policy::{AdmitPolicy, FFI2RustAdmitPolicy};
 use crate::protocol::signer::NostrSigner;
 use crate::transport::websocket::{CustomWebSocketTransport, FFI2RustWebSocketTransport};
@@ -44,6 +45,13 @@ impl ClientBuilder {
         builder
     }
 
+    /// Set a gossip store
+    pub fn gossip(&self, gossip: &NostrGossip) -> Self {
+        let mut builder = self.clone();
+        builder.inner = builder.inner.gossip(gossip.deref().clone());
+        builder
+    }
+
     /// Set a custom WebSocket transport
     pub fn websocket_transport(&self, transport: Arc<dyn CustomWebSocketTransport>) -> Self {
         let mut builder = self.clone();

src/client/builder.rs

@@ -0,0 +1,29 @@
+use std::ops::Deref;
+use std::sync::Arc;
+
+use nostr_gossip_memory::store::NostrGossipMemory;
+use uniffi::Object;
+
+#[derive(Object)]
+pub struct NostrGossip {
+    inner: Arc<dyn nostr_gossip::NostrGossip>,
+}
+
+impl Deref for NostrGossip {
+    type Target = Arc<dyn nostr_gossip::NostrGossip>;
+
+    fn deref(&self) -> &Self::Target {
+        &self.inner
+    }
+}
+
+#[uniffi::export]
+impl NostrGossip {
+    /// Construct a new in-memory gossip store
+    #[uniffi::constructor]
+    pub fn in_memory() -> Self {
+        Self {
+            inner: Arc::new(NostrGossipMemory::unbounded()),
+        }
+    }
+}

src/gossip/mod.rs

@@ -10,6 +10,7 @@ pub mod client;
 pub mod connect;
 pub mod database;
 pub mod error;
+pub mod gossip;
 #[cfg(feature = "logger")]
 pub mod logger;
 pub mod negentropy;