diff --git a/src/sender.rs b/src/sender.rs
index cf78c92..7ae3617 100644
--- a/src/sender.rs
+++ b/src/sender.rs
@@ -1,3 +1,80 @@
+use std::{io::{Read, Write, self}, fmt};
+use crate::{request::{Request, ParseRequestError}, response::{Response, ParseResponseError}};
+use self::{verifier::Verifier, store::CertificateStore};
+
 pub mod store;
 pub mod verifier;
 
+#[derive(Debug)]
+pub struct Sender<'a, S: CertificateStore, C: Sized, T: Read + Write + Sized> {
+    pub request: Request,
+    pub verifier: Verifier<'a, S>,
+    pub stream: rustls::StreamOwned<C, T>,
+}
+
+#[derive(Debug)]
+pub enum Error {
+    TlsError(rustls::Error),
+    RequestError(ParseRequestError),
+    ResponseError(ParseResponseError),
+    IoError(io::Error),
+}
+
+impl fmt::Display for Error {
+    fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
+        match self {
+            Self::TlsError(e) => write!(f, "{e}"),
+            Self::RequestError(e) => write!(f, "{e}"),
+            Self::ResponseError(e) => write!(f, "{e}"),
+            Self::IoError(e) => write!(f, "{e}"),
+        }
+    }
+}
+
+impl std::error::Error for Error {
+    fn source(&self) -> Option<&(dyn std::error::Error + 'static)> {
+        match self {
+            Self::RequestError(e) => Some(e),
+            Self::ResponseError(e) => Some(e),
+            Self::TlsError(e) => Some(e),
+            Self::IoError(e) => Some(e),
+        }
+    }
+}
+
+impl From<rustls::Error> for Error {
+    fn from(value: rustls::Error) -> Self {
+        Self::TlsError(value)
+    }
+}
+
+impl From<ParseRequestError> for Error {
+    fn from(value: ParseRequestError) -> Self {
+        Self::RequestError(value)
+    }
+}
+
+impl From<ParseResponseError> for Error {
+    fn from(value: ParseResponseError) -> Self {
+        Self::ResponseError(value)
+    }
+}
+
+impl From<io::Error> for Error {
+    fn from(value: io::Error) -> Self {
+        Self::IoError(value)
+    }
+}
+
+impl<'a, S, C, T> Sender<'a, S, C, T>
+where S: CertificateStore + Sync, C: Sized, T: Read + Write + Sized {
+    pub fn new(request_str: &str, store: &'a S) -> Result<Self, Error> {
+        let request: Request = request_str.parse()?;
+        let verifier = Verifier::new(store);
+        unimplemented!();
+    }
+
+    pub fn send(&mut self) -> Result<Response, Error> {
+        unimplemented!();
+    }
+}
diff --git a/src/sender/verifier.rs b/src/sender/verifier.rs
index d341622..3bf1cae 100644
--- a/src/sender/verifier.rs
+++ b/src/sender/verifier.rs
@@ -2,6 +2,7 @@ use crate::fingerprint::Fingerprint;
 use rustls::{client::{ServerCertVerified, ServerCertVerifier}, Certificate};
 use super::store::CertificateStore;
 
+#[derive(Debug)]
 pub struct Verifier<'a, T: CertificateStore> {
     store: &'a T,
 }
@@ -37,3 +38,9 @@ impl<'a, T: CertificateStore + Sync> ServerCertVerifier for Verifier<'a, T> {
         return Err(rustls::Error::General("Unrecognized certificate".to_string()));
     }
 }
+
+impl<'a, T: CertificateStore + Sync> Verifier<'a, T> {
+    pub fn new(store: &'a T) -> Self {
+        Self { store }
+    }
+}