add interface file

backend/src/interfaces/index.ts

@@ -0,0 +1,26 @@
+export interface ExportJob {
+    bookId: string,
+    type: string,
+    state: string,
+    created_at: Date,
+    updated_at: Date
+}
+
+export interface ImportJob {
+    bookId: string,
+    type: string,
+    url: string,
+    state: string,
+    created_at: Date,
+    updated_at: Date
+}
+
+export interface ExportJobsList {
+    pending: ExportJob[],
+    finished: ExportJob[],
+}
+
+export interface ImportJobsList {
+    pending: ImportJob[],
+    finished: ImportJob[]
+}