diff --git a/backend/src/models/supplier.rs b/backend/src/models/supplier.rs
index d13fd81..784a48e 100644
--- a/backend/src/models/supplier.rs
+++ b/backend/src/models/supplier.rs
@@ -57,21 +57,48 @@ impl CrudBackend for Supplier {
     }
 
     async fn create_inner(conn: &mut PgConnection, create: Self::Create) -> Result<Self> {
-        todo!()
+        sqlx::query_as!(
+            Supplier,
+            "INSERT INTO suppliers (name, phone, address) VALUES ($1, $2, $3) RETURNING *",
+            create.name,
+            create.phone,
+            create.address
+        )
+        .fetch_one(&mut *conn)
+        .await
+        .map_err(Into::into)
     }
 
     async fn read_inner<'a>(
         conn: impl sqlx::prelude::Executor<'a, Database = sqlx::Postgres>,
         id: Self::Identifier,
     ) -> Result<Self> {
-        todo!()
+        sqlx::query_as!(Supplier, "SELECT * FROM suppliers WHERE id = $1", id)
+            .fetch_one(conn)
+            .await
+            .map_err(Into::into)
     }
 
     async fn update_inner(&mut self, conn: &mut PgConnection) -> Result<()> {
-        todo!()
+        sqlx::query_as!(
+            Supplier,
+            "UPDATE suppliers SET name = $1, phone = $2, address = $3 WHERE id = $4 RETURNING *",
+            self.name,
+            self.phone,
+            self.address,
+            self.id
+        )
+        .fetch_one(&mut *conn)
+        .await
+        .map_err(Into::into)
+        .map(|_| ())
     }
 
     async fn delete_inner(&self, conn: &mut PgConnection) -> Result<()> {
-        todo!()
+        sqlx::query_as!(Supplier, "DELETE FROM suppliers WHERE id = $1", self.id)
+            .execute(&mut *conn)
+            .await
+            .map_err(Into::into)
+            .map(|_| ())
     }
 }