1 files changed, 63 insertions, 0 deletions
diff --git a/packages/taler-util/src/twrpc.ts b/packages/taler-util/src/twrpc.ts
new file mode 100644
index 000000000..d221630d0
--- /dev/null
+++ b/packages/taler-util/src/twrpc.ts
@@ -0,0 +1,63 @@
+/*
+ This file is part of GNU Taler
+ (C) 2023 Taler Systems S.A.
+
+ GNU Taler is free software; you can redistribute it and/or modify it under the
+ terms of the GNU General Public License as published by the Free Software
+ Foundation; either version 3, or (at your option) any later version.
+
+ GNU Taler is distributed in the hope that it will be useful, but WITHOUT ANY
+ WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
+ A PARTICULAR PURPOSE.  See the GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License along with
+ GNU Taler; see the file COPYING.  If not, see <http://www.gnu.org/licenses/>
+ */
+
+import { CoreApiResponse } from "./wallet-types.js";
+
+/**
+ * Implementation for the wallet-core IPC protocol.
+ *
+ * Currently the protocol is completely unstable and only used internally
+ * by the wallet for testing purposes.
+ */
+
+// Platform-specific implementation
+export { connectRpc, runRpcServer } from "#twrpc-impl";
+
+export type JsonMessage =
+  | string
+  | number
+  | boolean
+  | null
+  | JsonMessage[]
+  | { [key: string]: JsonMessage };
+
+export interface RpcServerClientHandlers {
+  onMessage(msg: JsonMessage): void;
+  onDisconnect(): void;
+}
+
+export interface RpcServerClient {
+  sendResponse(message: JsonMessage): void;
+}
+
+export interface RpcServerArgs {
+  socketFilename: string;
+  onConnect(client: RpcServerClient): RpcServerClientHandlers;
+}
+
+export interface RpcClientServerConnection {
+  sendMessage(m: JsonMessage): void;
+  close(): void;
+}
+
+export interface RpcConnectArgs<T> {
+  socketFilename: string;
+  onEstablished(connection: RpcClientServerConnection): {
+    result: T;
+    onDisconnect(): void;
+    onMessage(m: JsonMessage): void;
+  };
+}