continue with implementation taking into account sheet prototype given by analysts staff

src/Controllers/ExcelController.ts

+/* eslint-disable import/extensions */
 /* eslint-disable no-console */
 import { Request, Response } from "express";
+import { parseExcelService } from "../Services/SheetService";
 
 const parseExcel = async (req:Request, res:Response) => {
-  console.log(req);
-  console.log(res);
+  res.status(200).send(parseExcelService());
 };
 
 module.exports = {

src/Services/ExcelPaserService.ts

-import * as XLSX from "xlsx";
-
-const parseExcel = (excelFile) => {
-  XLSX.readFile(excelFile);
-};
-
-module.exports = {
-  parseExcel,
-};

src/Services/SheetService.ts

+/* eslint-disable no-param-reassign */
+/* eslint-disable no-plusplus */
+/* eslint-disable import/prefer-default-export */
+/* eslint-disable no-console */
+import * as XLSX from "xlsx";
+
+/* PRIVATE FUNCTIONS */
+const ec = (r:any, c:any) => XLSX.utils.encode_cell({ r, c });
+const deleteRow = (ws:any, rowIndex:any) => {
+  const variable = XLSX.utils.decode_range(ws["!ref"]);
+  for (let R = rowIndex; R < variable.e.r; ++R) {
+    for (let C = variable.s.c; C <= variable.e.c; ++C) {
+      ws[ec(R, C)] = ws[ec(R + 1, C)];
+    }
+  }
+  variable.e.r--;
+  ws["!ref"] = XLSX.utils.encode_range(variable.s, variable.e);
+};
+
+/* EXPORT FUNCTIONS */
+export const parseExcelService = () => {
+  const workbook = XLSX.readFile("src\\Services\\test.xlsx");
+  // TODO: need definition of sheet
+  workbook.SheetNames.forEach((sheetName) => {
+    const worksheet = workbook.Sheets[sheetName];
+    const ref = worksheet["!ref"]!;
+    const range = XLSX.utils.decode_range(ref);
+    range.s.c = 0; // 0 == XLSX.utils.decode_col("A")
+    range.e.c = 1; // 6 == XLSX.utils.decode_col("B")
+    const newRange = XLSX.utils.encode_range(range);
+    deleteRow(worksheet, 0);
+    const parsed = XLSX.utils.sheet_to_json(worksheet, { range: newRange });
+    console.log(parsed);
+    return parsed;
+  });
+};

src/routes.ts

@@ -41,6 +41,6 @@ router.get("/", (req:Request, res:Response):void => {
  *                              excelParsed:
  *                                  type: string
  */
-router.post("/excelParser", parseExcel);
+router.get("/excelParser", parseExcel);
 
 module.exports = router;