diff --git a/src/error.rs b/src/error.rs
index 6057cb4..2d5e181 100644
--- a/src/error.rs
+++ b/src/error.rs
@@ -1,7 +1,6 @@
-use std::borrow::Borrow;
 use std::fmt;
 
-#[derive(Copy, Clone)]
+#[derive(Copy, Clone, Debug)]
 pub enum Kind {
     InvalidEndpointError,
     JsonParseError,
@@ -11,12 +10,13 @@ pub enum Kind {
     IoError,
 }
 
-#[derive(Copy, Clone)]
+#[derive(Copy, Clone, Debug)]
 pub enum Class {
     ClientError,
     ServerError,
 }
 
+#[derive(Debug)]
 pub struct Error {
     kind: Kind,
     msg: Option<String>,
@@ -89,12 +89,6 @@ impl fmt::Display for Error {
     }
 }
 
-impl fmt::Debug for Error {
-    fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
-        self.fmt(f)
-    }
-}
-
 impl From<std::io::Error> for Error {
     fn from(error: std::io::Error) -> Self {
         Error {
diff --git a/src/http/handler.rs b/src/http/handler.rs
index b2ff1b2..2b7e0a3 100644
--- a/src/http/handler.rs
+++ b/src/http/handler.rs
@@ -113,7 +113,7 @@ fn endpoint_handler(
             client.server_keep_alive = false;
         }
 
-        client.stream.write_all(buf.as_bytes());
+        client.stream.write_all(buf.as_bytes()).unwrap();
     };
 
     let length = req.find_header("Content-Length");
@@ -141,7 +141,7 @@ fn endpoint_handler(
     };
 
     let mut buf = [0; 8192];
-    client.stream.read_exact(&mut buf[..length]);
+    client.stream.read_exact(&mut buf[..length]).unwrap();
 
     // TODO decompress
     let input = match serde_json::from_slice(&buf[..length]) {
@@ -160,6 +160,6 @@ fn endpoint_handler(
     res.add_header("Content-Type", "application/json; charset=utf-8");
 
     res.status(200);
-    res.send(&mut client.stream);
-    client.stream.write_all(buf.as_bytes());
+    res.send(&mut client.stream).unwrap();
+    client.stream.write_all(buf.as_bytes()).unwrap();
 }
diff --git a/src/http/mod.rs b/src/http/mod.rs
index ce0a5fb..eec7968 100644
--- a/src/http/mod.rs
+++ b/src/http/mod.rs
@@ -262,7 +262,7 @@ impl Response {
 
         stream.write_all(header.as_bytes())?;
         if let Some(buf) = buf {
-            stream.write_all(buf.as_bytes());
+            stream.write_all(buf.as_bytes())?;
         }
         Ok(())
     }
diff --git a/src/websocket/mod.rs b/src/websocket/mod.rs
index 0fd0172..8fc7d65 100644
--- a/src/websocket/mod.rs
+++ b/src/websocket/mod.rs
@@ -8,11 +8,11 @@ pub fn connection_handler(client: &mut http::HttpStream, req: &http::Request) {
     } else {
         res.status(405);
         res.add_header("Allow", "GET");
-        res.send(&mut client.stream);
+        res.send(&mut client.stream).unwrap();
         return;
     }
 
     // TODO implement websocket
     res.status(501);
-    res.send(&mut client.stream);
+    res.send(&mut client.stream).unwrap();
 }