Rich text formatting is not rendered when using the Streaming I/O

Hello there,

In my application I’m building an Excel document row by row and stream each row when it’s done. One cell has rich formatting - some words have specific colours. I think I’m doing the right thing but in the Excel document the cell has the value [Object object]. I guess this is the toString() of the object instead of the correct rendering.

Here is a little example that is failing for me:

var fs = require('fs');
var exceljs = require('exceljs');

var stream = fs.createWriteStream('richtTextStream.xlsx');
var wb = new exceljs.stream.xlsx.WorkbookWriter({'stream': stream, 'useStyles': true});
var ws = wb.addWorksheet('rich');
var row = ws.getRow(2);
var cell = row.getCell(2);

cell.value = {
  richText: [
    {
      font: {color: {argb: '99E391'}},
      text: 'This part '
    },
    {
      font: {color: {argb: 'FF6565'}},
      text: ' and that one.'
    }
  ]
};

row.commit();
ws.commit();
wb.commit();

If I use a non streaming workbook and write the file using wb.xlsx.writeFile() then I can see the correct formatting.

Any idea what is going on? Is there some missing rendering logic in the Streaming I/O?

Thanks!

[Kylir]

Thanks for the suggestion! I used this 'useSharedStrings': true option and I can see rich text formatting.

But it is still not working: if you have multiple rows with rich text formatting all the cells will have the value of the first cell.

The following script illustrates what I’m saying:

const fs = require('fs');
const exceljs = require('exceljs');

let stream = fs.createWriteStream('richtTextStream.xlsx');
let wb = new exceljs.stream.xlsx.WorkbookWriter({'stream': stream, 'useStyles': true, 'useSharedStrings': true});
let ws = wb.addWorksheet('rich');

let row = ws.getRow(2);
let cell = row.getCell(2);

cell.value = {
  richText: [
    { font: {color: {argb: '99E391'}}, text: 'This part ' },
    { font: {color: {argb: 'FF6565'}}, text: ' and that one.'}
  ]
};
row.commit();

let row2 = ws.getRow(3);
let cell2 = row2.getCell(2);
cell2.value = {
  richText: [
    { font: {color: {argb: '9199E3'}}, text: 'Something different ' },
    { font: {color: {argb: 'FF6565'}}, text: ' with the same colors.' }
  ]
};
row2.commit();

ws.commit();
wb.commit();

The excel document generated will have 2 rows with the same content:

	This part and that one
	This part and that one

[valentinomicudaj1]

I ran into the same problem with all the richText cells have the same value as the first richText cell, any workaround or any news of a possible fix? Version: 4.2.0