add .gitignore

.gitignore

@@ -0,0 +1 @@
+node_modules

README.md

@@ -1,2 +1,52 @@
 # nostr-python
 a nostr protocol with python
+
+
+client:
+1. Connect to relay -  
+  websockets :  https://relay.nekolicio.us/  
+  nostr-watcher : https://relay.nekolicio.us/watcher/  
+  usage at terminal : python3 client-sender.py --host relay.nekolicio.us/ --message "Hi !"  
+
+2. Send event (ref protocol)- in json
+```
+["EVENT", <event JSON >] :
+
+{
+  "id": <32-bytes lowercase hex-encoded sha256 of the serialized event data>,
+  "pubkey": <32-bytes lowercase hex-encoded public key of the event creator>,
+  "created_at": <unix timestamp in seconds>,
+  "kind": <integer>,
+  "tags": [
+    ["e", <32-bytes hex of the id of another event>, <recommended relay URL>],
+    ["p", <32-bytes hex of a pubkey>, <recommended relay URL>],
+    ... // other kinds of tags may be included later
+  ],
+  "content": <arbitrary string>,
+  "sig": <64-bytes hex of the signature of the sha256 hash of the serialized event data, which is the same as the "id" field>
+ }
+```
+simplied as -
+
+```
+["EVENT", <event JSON >] :
+
+{
+  "id": ...,
+  "pubkey": ...,
+  "created_at": ...,
+  "kind": 1,
+  "tags": [],
+  "content": "First try nostr-python OK !",
+  "sig": ...
+ }
+```
+
+3. Disconnect
+
+
+Ref:  
+https://github.com/nostr-protocol/nostr  
+https://snyk.io/advisor/npm-package/[email protected]  
+https://github.com/jeffthibault/python-nostr  
+https://www.nostr.net/  

client-sender.py

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+#!/usr/bin/env python3
+
+import time
+import json
+import ssl
+import asyncio
+import websockets
+#from nostr.relay_manager import RelayManager
+import secp256k1
+#rom hashlib import sha256
+#from nostr.key import PrivateKey
+import argparse
+RELAY_Timeout_DURATION = 60
+
+
+
+
+async def send_message(host,messages):
+    uri = "wss://{}".format(host)
+    event = {
+        'id': None,
+        'sig': None,
+        'content':messages,
+        'created_at':None,
+        'kind':1,
+        'pubkey': None,
+        'tag':[]
+    }
+
+    data = [0,event['kind'],event['tag'],event['content']]
+    serialzed = json.dumps(data,separators=(',',':'),ensure_ascii=False).encode()
+
+    async with websockets.connect(uri) as websocket:
+        payload = [
+            'EVENT',
+            event
+        ]
+        await websocket.send(json.dumps(payload))
+
+
+
+if __name__ == "__main__":
+    parser = argparse.ArgumentParser()
+    parser.add_argument('--host')
+    parser.add_argument('--message')
+    args = parser.parse_args()
+    asyncio.run(send_message(args.host,args.message))