1 files changed, 34 insertions, 0 deletions
diff --git a/js/src/server/server.ts b/js/src/server/server.ts
new file mode 100644
index 000000000..6266e9421
--- /dev/null
+++ b/js/src/server/server.ts
@@ -0,0 +1,34 @@
+import { Log } from "../util/log";
+
+export namespace RPC {
+  const log = Log.create({ service: "rpc" });
+  const PORT = 16713;
+  export function listen(input?: { port?: number }) {
+    const port = input?.port ?? PORT;
+    log.info("trying", { port });
+    try {
+      const server = Bun.serve({
+        port,
+        websocket: {
+          open() {},
+          message() {},
+        },
+        routes: {
+          "/ws": (req, server) => {
+            if (server.upgrade(req)) return;
+            return new Response("Not a websocket request", { status: 400 });
+          },
+        },
+      });
+      log.info("listening", { port });
+      return {
+        server,
+      };
+    } catch (e: any) {
+      if (e?.code === "EADDRINUSE") {
+        return listen({ port: port + 1 });
+      }
+      throw e;
+    }
+  }
+}