MYD-173/get all sessions

Closes MYD-173

src/main/java/com/marketingconfort/mydressin/controllers/SaleSessionController.java

@@ -23,5 +23,9 @@ public class SaleSessionController {
         return new ResponseEntity<>(createdSaleSession, HttpStatus.CREATED);
     }
 
-
+    @GetMapping("/saleSessions")
+    public ResponseEntity<List<SaleSessionDTO>> getAllSaleSessions() {
+        List<SaleSessionDTO> saleSessions = saleSessionService.getAllSaleSessions();
+        return new ResponseEntity<>(saleSessions, HttpStatus.OK);
+    }
 }