expose canMessage method

Sources/XMTP/Client.swift

@@ -192,6 +192,18 @@ public final class Client: Sendable {
 	public func canMessage(_ peerAddress: String) async throws -> Bool {
 		return try await query(topic: .contact(peerAddress)).envelopes.count > 0
 	}
+
+  public static func canMessage(_ peerAddress: String, options: ClientOptions? = nil) async throws -> Bool {
+    let options = options ?? ClientOptions()
+
+    let client = try await XMTPRust.create_client(GRPCApiClient.envToUrl(env: options.api.env), options.api.env != .local)
+    let apiClient = try GRPCApiClient(
+      environment: options.api.env,
+      secure: options.api.isSecure,
+      rustClient: client
+    )
+    return try await apiClient.query(topic: .contact(peerAddress)).envelopes.count > 0
+  }
 
 	public func importConversation(from conversationData: Data) throws -> Conversation? {
 		let jsonDecoder = JSONDecoder()

Tests/XMTPTests/ClientTests.swift

@@ -30,6 +30,18 @@ class ClientTests: XCTestCase {
 		XCTAssertFalse(cannotMessage)
 	}
 
+  func testStaticCanMessage() async throws {
+    try TestConfig.skip(because: "run manually against dev")
+    let fixtures = await fixtures()
+    let notOnNetwork = try PrivateKey.generate()
+    let opts = ClientOptions(api: .init(env: .local, isSecure: false))
+
+    let canMessage = try await Client.canMessage(fixtures.bobClient.address, options: opts)
+    let cannotMessage = try await Client.canMessage(notOnNetwork.address, options: opts)
+    XCTAssertTrue(canMessage)
+    XCTAssertFalse(cannotMessage)
+  }
+
 	func testHasPrivateKeyBundleV1() async throws {
 		let fakeWallet = try PrivateKey.generate()
 		let client = try await Client.create(account: fakeWallet, apiClient: FakeApiClient())