implement client side

client/spacetime/Spacetime.cs

@@ -0,0 +1,86 @@
+using System;
+using Godot;
+using SpacetimeDB;
+using SpacetimeDB.Types;
+
+public class Spacetime
+{
+    /// The URI of the SpacetimeDB instance hosting our chat database and module.
+    const string HOST = "http://localhost:3000";
+
+    /// The database name we chose when we published our module.
+    const string DB_NAME = "massive";
+
+    public static Spacetime Instance
+    {
+        get
+        {
+            if (_instance == null)
+            {
+                _instance = new Spacetime(HOST, DB_NAME);
+            }
+            return _instance;
+        }
+    }
+
+    // our local client SpacetimeDB identity
+    public Identity Identity { get; private set; }
+    public DbConnection Connection { get; private set; }
+    public User Me
+    {
+        get => Connection.Db.User.Identity.Find(Identity);
+    }
+
+    private static Spacetime _instance;
+
+    public Spacetime(string host, string dbName)
+    {
+        // Initialize the `AuthToken` module
+        AuthToken.Init(".spacetime_csharp_quickstart");
+
+        Connection = DbConnection
+            .Builder()
+            .WithUri(host)
+            .WithModuleName(dbName)
+            .WithToken(AuthToken.Token)
+            .OnConnect(OnConnected)
+            .OnConnectError(OnConnectError)
+            .OnDisconnect(OnDisconnected)
+            .Build();
+    }
+
+    /// Our `OnConnected` callback: save our credentials to a file.
+    void OnConnected(DbConnection conn, Identity identity, string authToken)
+    {
+        Identity = identity;
+        AuthToken.SaveToken(authToken);
+
+        conn.SubscriptionBuilder().OnApplied(OnSubscriptionApplied).SubscribeToAllTables();
+    }
+
+    /// Our `OnSubscriptionApplied` callback:
+    /// sort all past messages and print them in timestamp order.
+    void OnSubscriptionApplied(SubscriptionEventContext ctx)
+    {
+        GD.Print("Connected");
+    }
+
+    /// Our `OnConnectError` callback: print the error, then exit the process.
+    void OnConnectError(Exception e)
+    {
+        GD.PrintErr($"Error while connecting: {e}");
+    }
+
+    /// Our `OnDisconnect` callback: print a note, then exit the process.
+    void OnDisconnected(DbConnection conn, Exception? e)
+    {
+        if (e != null)
+        {
+            GD.PrintErr($"Disconnected abnormally: {e}");
+        }
+        else
+        {
+            GD.Print($"Disconnected normally.");
+        }
+    }
+}

client/spacetime/Spacetime.cs.uid

@@ -0,0 +1 @@
+uid://dug30f321xvvt