diff --git a/FileRepository/IFileRepository.cs b/FileRepository/IFileRepository.cs
new file mode 100644
index 0000000..9764eef
--- /dev/null
+++ b/FileRepository/IFileRepository.cs
@@ -0,0 +1,41 @@
+using FileRepository.Models;
+using System;
+using System.IO;
+using System.Threading.Tasks;
+
+namespace FileRepository
+{
+    /// <summary>
+    /// A repository interface to ensure that all storage repositories implement all the required methods, and that the methods are all generic.
+    /// </summary>
+    public interface IFileRepository
+    {
+        /// <summary>
+        /// Create a file in the repository.
+        /// </summary>
+        /// <param name="file">The file to store.</param>
+        /// <returns>Returns a string id of the created file.</returns>
+        Task<string> CreateFileAsync(RepoFile file);
+
+        /// <summary>
+        /// Read a file from the repository.
+        /// </summary>
+        /// <param name="id">The id of the file to read.</param>
+        /// <returns>Returns the file from the repository.</returns>
+        Task<RepoFile> ReadFileAsync(string id);
+
+        /// <summary>
+        /// Update a file in the repository.
+        /// </summary>
+        /// <param name="id">The id of the file to update.</param>
+        /// <returns>Returns a boolean representing whether or not the update was successful.</returns>
+        Task<bool> UpdateFileAsync(string id);
+
+        /// <summary>
+        /// Delete a file in the repository.
+        /// </summary>
+        /// <param name="id">The id of the file to delete.</param>
+        /// <returns>Returns a boolean representing whether or not the delete was successful.</returns>
+        Task<bool> DeleteFileAsync(string id);
+    }
+}