Export Google sheet Chart as an image - google-apps-script

Question

Would you please help on how to export a chart to a image using google script.
I wrote this code but it doesn't work. I'm worrying that the API getAs is deprecated.
function TestEmailCharts(){
var sheet = SpreadsheetApp.getActiveSheet();
var charts = sheet.getCharts();
if(charts.length!=0)
{
var chartBlobs=new Array(charts.length);
var emailBody="Charts<br>";
var emailImages={};
for(var i=0;i<charts.length;i++){
chartBlobs[i]= charts[i].getAs("image/jpeg").setName("chartBlob"+i);
emailBody= emailBody + "<img src='cid:chart"+i+"'><br>";
emailImages["chart"+i]= chartBlobs[i];
}
MailApp.sendEmail({
to: "email#gmail.com",
subject: "test2",
htmlBody: emailBody,
inlineImages:emailImages});
}
}
To reproduce the problem, create a Google spread sheet
Create a simple chart with some data.
Add this code to scripts.
Replace email#gmail.com with your email
Normally you should receive an email with chart image
But the problem is that you will receive a email with black image.
Best regards.

Answer 1

Exporting a Google sheet chart as an image
By Email:
First create the chart and then get its blob. Then send the blob as attachment.
function createPieChart(){
var sheet = SpreadsheetApp.openById("<ID>").getSheetByName("<SheetName>");
var chartBuilder = sheet.newChart()
.asPieChart()
.set3D()
.addRange(sheet.getRange("A20").getDataRegion())
.setPosition(16, 5, 0, 0)
.setOption('title', "Total hour split in 2020");
var blob = chartBuilder.build().getBlob();
sendMail(blob);
}
function sendMail(img){
MailApp.sendEmail({
to: "john#domain.com",
subject: "test",
htmlBody: "fair enough",
attachments: [img]}); //If this gives you problems, replace img with img.getAs(MimeType.JPEG)
}
To another spreadsheet (different from where the source data for the chart is):
Similar way, create the chart and then insert the blob as an image in the destination sheet:
function createPieChart(){
var srcSheet = SpreadsheetApp.openById("<ID>").getSheetByName("<SheetName>");
var destSheet = SpreadsheetApp.openById("<ID>").getSheetByName("<SheetName>");
var chartBuilder = srcSheet.newChart()
.asPieChart()
.set3D()
.addRange(sheet.getRange("A20").getDataRegion())
.setPosition(16, 5, 0, 0)
.setOption('title', "Total hour split in 2020");
var blob = chartBuilder.build().getBlob();
destSheet.insertImage(blob, 1, 1);
}