1 files changed, 18 insertions, 0 deletions
diff --git a/BackEnd/Timeline/Services/User/IUserDeleteService.cs b/BackEnd/Timeline/Services/User/IUserDeleteService.cs
new file mode 100644
index 00000000..ce9448ac
--- /dev/null
+++ b/BackEnd/Timeline/Services/User/IUserDeleteService.cs
@@ -0,0 +1,18 @@
+using System;
+using System.Threading.Tasks;
+
+namespace Timeline.Services.User
+{
+    public interface IUserDeleteService
+    {
+        /// <summary>
+        /// Delete a user of given username.
+        /// </summary>
+        /// <param name="username">Username of the user to delete. Can't be null.</param>
+        /// <returns>True if user is deleted, false if user not exist.</returns>
+        /// <exception cref="ArgumentNullException">Thrown if <paramref name="username"/> is null.</exception>
+        /// <exception cref="ArgumentException">Thrown when <paramref name="username"/> is of bad format.</exception>
+        /// <exception cref="InvalidOperationOnRootUserException">Thrown when deleting root user.</exception>
+        Task<bool> DeleteUser(string username);
+    }
+}