diff --git a/Cargo.lock b/Cargo.lock
index bff0452..a2eb8c6 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -359,6 +359,7 @@ dependencies = [
  "tokio",
  "tokio-tungstenite",
  "tungstenite",
+ "uuid",
 ]
 
 [[package]]
@@ -923,6 +924,15 @@ version = "0.7.6"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "09cc8ee72d2a9becf2f2febe0205bbed8fc6615b7cb429ad062dc7b7ddd036a9"
 
+[[package]]
+name = "uuid"
+version = "0.8.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "bc5cf98d8186244414c848017f0e2676b3fcb46807f6668a97dfe67359a3c4b7"
+dependencies = [
+ "getrandom",
+]
+
 [[package]]
 name = "version_check"
 version = "0.9.3"
diff --git a/Cargo.toml b/Cargo.toml
index 5a848a3..03f8ee3 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -13,6 +13,7 @@ futures-util = "0.3.17"
 tokio-tungstenite = "0.16.0"
 tungstenite = "0.16.0"
 thiserror = "1.0.30"
+uuid = { version = "0.8", features = ["v4"] }
 
 
 bitcoin_hashes = { version = "0.10.0", features = ["serde"] }
diff --git a/src/main.rs b/src/main.rs
index f4d369f..7d249af 100644
--- a/src/main.rs
+++ b/src/main.rs
@@ -2,6 +2,7 @@ use std::{env, io::Error};
 
 use futures_util::{SinkExt, StreamExt};
 use log::{debug, info, warn};
+use nostr_rs_relay::proto::Proto;
 use tokio::net::{TcpListener, TcpStream};
 use tokio::runtime::Builder;
 use tokio_tungstenite::WebSocketStream;
@@ -67,9 +68,9 @@ async fn nostr_server(stream: TcpStream) {
 
 // Handles valid clients who have upgraded to WebSockets
 async fn process_client(stream: WebSocketStream<TcpStream>) {
+    // get a protocol helper;
+    let proto = Proto::new();
     let (mut write, mut read) = stream.split();
-    // TODO: error on binary messages
-    // TODO: error on text messages > MAX_EVENT_SIZE
     // TODO: select on a timeout to kill non-responsive clients
 
     while let Some(mes_res) = read.next().await {
@@ -86,6 +87,7 @@ async fn process_client(stream: WebSocketStream<TcpStream>) {
                     )))
                     .await
                     .expect("send failed");
+                proto.process_message(cmd);
                 // Handle this request. Everything else below is basically error handling.
             }
             Ok(Message::Binary(_)) => {
diff --git a/src/request.rs b/src/request.rs
index 8798ca2..f057780 100644
--- a/src/request.rs
+++ b/src/request.rs
@@ -1 +1,43 @@
+use crate::error::{Error, Result};
+use serde::{Deserialize, Deserializer, Serialize};
+//use serde_json::json;
+//use serde_json::Result;
+
+
+// Container for a request filter
+#[derive(Serialize, Deserialize, PartialEq, Debug, Clone)]
+pub struct ReqCmd {
+
+    #[serde(deserialize_with = "u32_from_string")]
+    id: u32,
+    #[serde(deserialize_with = "u32_from_string")]
+    pubkey: u32,
+    created_at: u64,
+    kind: u8,
+    #[serde(deserialize_with = "tag_from_string")]
+    tags: Vec<Vec<String>>,
+    content: String,
+    #[serde(deserialize_with = "u64_from_string")]
+    sig: u64,
+}
+
+#[derive(Serialize, Deserialize, PartialEq, Debug, Clone)]
+pub struct Subscription {
+    id: String,
+    Vec<ReqFilter>
+}
+
+#[derive(Serialize, Deserialize, PartialEq, Debug, Clone)]
+pub struct ReqFilter {
+    id: Option<String>,
+    author: Option<String>,
+    kind: Option<u8>,
+    #[serde(rename = "e#")]
+    event: Option<String>,
+    #[serde(rename = "p#")]
+    pubkey: Option<String>,
+    since: Option<u64>,
+    authors: Option<Vec<String>>,
+}
+
 pub struct Request {}