8 files changed, 46 insertions, 20 deletions
diff --git a/crates/api-auth/src/discord/mod.rs b/crates/api-auth/src/discord/mod.rs
index ffa5a68..ba26f8b 100644
--- a/crates/api-auth/src/discord/mod.rs
+++ b/crates/api-auth/src/discord/mod.rs
@@ -1,4 +1,5 @@
 use api_core::models::user::User;
+use async_session::Session;
 use async_trait::async_trait;
 use serde::{Deserialize, Serialize};
 use sh_util::cache::RedisManager;
@@ -25,7 +26,11 @@ impl TryFrom<DiscordUser> for User {
         match (&user_data.email, user_data.verified) {
             (None, _) => Err(AuthError::MissingEmail),
             (_, false) => Err(AuthError::EmailNotVerified),
-            (Some(_), true) => Ok(Self {}),
+            (Some(_), true) => Ok(Self {
+                id: user_data.id,
+                username: user_data.username,
+                email: user_data.email.ok_or(AuthError::MissingEmail)?,
+            }),
         }
     }
 }
@@ -67,7 +72,10 @@ impl OauthDriver for AuthServiceDiscord {
         crate::util::create_oauth_session(&self.client, &self.cache, &["identify", "email"]).await
     }
 
-    async fn save_session(&self, _user: &User) -> Result<(), AuthError> {
-        todo!()
+    async fn save_session(&self, user: &User) -> Result<(), AuthError> {
+        let mut session = Session::new();
+        session.insert("user", user).expect("serialisable user");
+
+        Ok(())
     }
 }
diff --git a/crates/api-auth/src/lib.rs b/crates/api-auth/src/lib.rs
index 24b966c..234a85b 100644
--- a/crates/api-auth/src/lib.rs
+++ b/crates/api-auth/src/lib.rs
@@ -2,6 +2,7 @@
 pub mod discord;
 
 pub mod client;
+#[cfg(feature = "discord")]
 pub(crate) mod util;
 
 mod error;
diff --git a/crates/api-core/src/models/user.rs b/crates/api-core/src/models/user.rs
index 7b70234..b05c41c 100644
--- a/crates/api-core/src/models/user.rs
+++ b/crates/api-core/src/models/user.rs
@@ -1,4 +1,8 @@
-use serde::Deserialize;
+use serde::{Deserialize, Serialize};
 
-#[derive(Deserialize)]
-pub struct User {}
+#[derive(Deserialize, Serialize)]
+pub struct User {
+    pub id: String,
+    pub username: String,
+    pub email: String,
+}
diff --git a/crates/sellershut/Cargo.toml b/crates/sellershut/Cargo.toml
index 1151373..2580a73 100644
--- a/crates/sellershut/Cargo.toml
+++ b/crates/sellershut/Cargo.toml
@@ -9,13 +9,13 @@ homepage.workspace = true
 description = "A federated marketplace platform"
 
 [dependencies]
-anyhow = "1.0.102"
+anyhow.workspace = true
 api-auth = { path = "../api-auth", features = ["discord", "utoipa"] }
 api-core = { workspace = true, features = ["auth-discord", "utoipa"] }
 axum = { version = "0.8.8", features = ["macros"] }
 axum-extra = { version = "0.12.5", features = ["typed-header"] }
 bon = "3.9.1"
-clap = { version = "4.6.0", features = ["derive", "env"] }
+clap = { workspace = true, features = ["derive", "env"] }
 reqwest.workspace = true
 secrecy = { workspace = true, features = ["serde"] }
 serde = { workspace = true, features = ["derive"] }
diff --git a/crates/sellershut/src/server/api/routes/auth/authorised.rs b/crates/sellershut/src/server/api/routes/auth/authorised.rs
index a7e4c90..4a646a9 100644
--- a/crates/sellershut/src/server/api/routes/auth/authorised.rs
+++ b/crates/sellershut/src/server/api/routes/auth/authorised.rs
@@ -59,7 +59,9 @@ pub async fn authorised(
 
     client.validate_session(&cookie, &params.state).await?;
 
-    let _user = client.get_user(&state.http_client, &params.code).await?;
+    let user = client.get_user(&state.http_client, &params.code).await?;
+
+    client.save_session(&user).await?;
 
     Ok(String::default())
 }
diff --git a/crates/users/Cargo.toml b/crates/users/Cargo.toml
index e21ca6c..4c0098e 100644
--- a/crates/users/Cargo.toml
+++ b/crates/users/Cargo.toml
@@ -8,3 +8,6 @@ documentation.workspace = true
 homepage.workspace = true
 
 [dependencies]
+api-core = { workspace = true, features = ["users"] }
+async-trait.workspace = true
+thiserror.workspace = true
diff --git a/crates/users/src/error.rs b/crates/users/src/error.rs
new file mode 100644
index 0000000..1ff28ee
--- /dev/null
+++ b/crates/users/src/error.rs
@@ -0,0 +1,13 @@
+use thiserror::Error;
+
+#[derive(Error, Debug)]
+pub enum UserError {
+    #[error("data store disconnected")]
+    Disconnect(#[from] std::io::Error),
+    #[error("the data for key `{0}` is not available")]
+    Redaction(String),
+    #[error("invalid header (expected {expected:?}, found {found:?})")]
+    InvalidHeader { expected: String, found: String },
+    #[error("unknown data store error")]
+    Unknown,
+}
diff --git a/crates/users/src/lib.rs b/crates/users/src/lib.rs
index b93cf3f..9a268e7 100644
--- a/crates/users/src/lib.rs
+++ b/crates/users/src/lib.rs
@@ -1,14 +1,9 @@
-pub fn add(left: u64, right: u64) -> u64 {
-    left + right
-}
+pub mod error;
+use api_core::models::user::User;
 
-#[cfg(test)]
-mod tests {
-    use super::*;
+use crate::error::UserError;
 
-    #[test]
-    fn it_works() {
-        let result = add(2, 2);
-        assert_eq!(result, 4);
-    }
+#[async_trait::async_trait]
+pub trait UsersDriver: Send + Sync {
+    async fn get_user_by_email(&self, email: &str) -> Result<Option<User>, UserError>;
 }