Added totalamount api

backend/main.go

@@ -1419,6 +1419,17 @@ func connect() {
 				"result": result,
 			})
 
+    case "get-totalamount-electrical":
+			err := db.QueryRow(`SELECT IFNULL(SUM(amount), 0) AS result FROM electrical_orderofpayment_new WHERE electricalid = (SELECT electricalid FROM electrical WHERE electricalNo = ?)`, data).Scan(&result)
+			if err != nil {
+				c.AbortWithError(http.StatusBadRequest, err)
+				c.String(http.StatusBadRequest, err.Error())
+				return
+			}
+			c.JSON(http.StatusOK, gin.H{
+				"result": result,
+			})
+
 		}
 	})