basic-sheet-api.gs

function doGet(e) {
  const ssURL = "ํYour Google Sheet URL";

  const ss = SpreadsheetApp.openByUrl(ssURL);

  let response = [];
  
  const sheetName = e.parameter.sheet;

  if (sheetName === "address") {
    const sheet = ss.getSheetByName(sheetName);

    const address = sheet.getDataRange().getValues();

    address.forEach((address, index) => {
      if (index !== 0) {
        response.push({id: index, province: address[0], district: address[1], subdistrict: address[2], postcode: address[3] });
      }
    })

    return ContentService.createTextOutput(JSON.stringify(response)).setMimeType(ContentService.MimeType.JSON);
  } else {
    return ContentService.createTextOutput(JSON.stringify(response)).setMimeType(ContentService.MimeType.JSON);
  }
}