Add async python client for Delta Chat core JSON-RPC

deltachat-rpc-client/examples/echobot.py

@@ -0,0 +1,58 @@
+#!/usr/bin/env python3
+import asyncio
+import logging
+import sys
+
+import deltachat_rpc_client as dc
+
+
+async def main():
+    rpc = await dc.start_rpc_server()
+    deltachat = dc.Deltachat(rpc)
+    system_info = await deltachat.get_system_info()
+    logging.info("Running deltachat core %s", system_info["deltachat_core_version"])
+
+    accounts = await deltachat.get_all_accounts()
+    account = accounts[0] if accounts else await deltachat.add_account()
+
+    await account.set_config("bot", "1")
+    if not await account.is_configured():
+        logging.info("Account is not configured, configuring")
+        await account.set_config("addr", sys.argv[1])
+        await account.set_config("mail_pw", sys.argv[2])
+        await account.configure()
+        logging.info("Configured")
+    else:
+        logging.info("Account is already configured")
+        await deltachat.start_io()
+
+    async def process_messages():
+        fresh_messages = await account.get_fresh_messages()
+        fresh_message_snapshot_tasks = [
+            message.get_snapshot() for message in fresh_messages
+        ]
+        fresh_message_snapshots = await asyncio.gather(*fresh_message_snapshot_tasks)
+        for snapshot in reversed(fresh_message_snapshots):
+            if not snapshot.is_info:
+                await snapshot.chat.send_text(snapshot.text)
+            await snapshot.message.mark_seen()
+
+    # Process old messages.
+    await process_messages()
+
+    while True:
+        event = await account.wait_for_event()
+        if event["type"] == "Info":
+            logging.info("%s", event["msg"])
+        elif event["type"] == "Warning":
+            logging.warning("%s", event["msg"])
+        elif event["type"] == "Error":
+            logging.error("%s", event["msg"])
+        elif event["type"] == "IncomingMsg":
+            logging.info("Got an incoming message")
+            await process_messages()
+
+
+if __name__ == "__main__":
+    logging.basicConfig(level=logging.INFO)
+    asyncio.run(main())