diff --git a/src/app/interfaces/instance.interface.ts b/src/app/interfaces/instance.interface.ts
new file mode 100644
index 0000000..29a37f2
--- /dev/null
+++ b/src/app/interfaces/instance.interface.ts
@@ -0,0 +1,6 @@
+export interface IInstance {
+  id: number;
+  name: string;
+  backend_status: string;
+  created: string;
+}
diff --git a/src/app/interfaces/ws.interface.ts b/src/app/interfaces/ws.interface.ts
new file mode 100644
index 0000000..05de51b
--- /dev/null
+++ b/src/app/interfaces/ws.interface.ts
@@ -0,0 +1,8 @@
+export interface IWSEvent {
+ model: string;
+ msg: {
+   changed_fields: string[],
+   object?: any,
+   pk?: number
+ }
+}