How to refresh a sheet's cell value in Google Apps Script

Question

I\'m experimenting with Blockspring which provides a Google Sheets add-on which can, for example, run a function which returns data from a webservice e.g.

=B         


        

Answer 1

Example based on accepted answer above. Adding since I had to struggle a little to interpret how to use this to auto eval a cell formula on any sheet change. This code runs slow, but I'm sharing it as a general example in hopes it helps, YMMV.

/* Force evaluation of custom formula on sheet change.
* Temporarily changes formula text.
* @param sheetName: String Needs to be present in the formula
* @param row: Int
* @param col: Int 
*/

function forceEval(sheetName, row, col){
  var ss = SpreadsheetApp.getActiveSpreadsheet();
  var sheet = ss.getSheetByName(sheetName);
  var orig = sheet.getRange(row,col).getFormula(); 
  var temp = orig.replace("=", "?");
  sheet.getRange(row,col).setFormula(temp); 
  SpreadsheetApp.flush();
  sheet.getRange(row,col).setFormula(orig); 
}

Now call it using the onEdit trigger

function onEdit(e){
    forceEval("MySheet", 1, 1)
}

This will temporarily re-write the formula in cell 1,1 replacing "=" with "?", then flush(), then change it back, forcing the evaluation after any edit in the sheet.

Custom formula in cell might look something like this: =SUMSTATUS("MySheet","InProgress")

Should work for: =BLOCKSPRING("get-stock-current-stats", "ticker", "MSFT")