Send attachment with PDF extension but its not working - node.js

Question

I am trying to create a dynamic file and send that to the user in the attachment but after downloading it's not opening.
Showing an error saying "Failed to load PDF
In content, I am sending the required data.
Here is my code
router.get('/file',function(req, res){
var filename1='invoice.pdf';
filename1 = encodeURIComponent(filename1);
var mailOptions={
to: 'userMail#gmail.com',
subject: 'Speaker Added',
from: "admin#gmail.com",
headers: {
"X-Laziness-level": 1000,
"charset" : 'UTF-8'
},
html: '<p style="color:#0079c1;">Hello'+' '+'My Name'+'</p></br>'
+'<p style="color:#0079c1;">Thank you for choosing HOWDY.<p></br>'
+'<p>Click on the link below to activate your account and get redirected to HOWDY</p></br>',
attachments: [
{
'filename':filename1,
'content': 'data',
'contentType':'application/pdf',
'contentDisposition':'attachment'
}
]
}
var transporter = nodemailer.createTransport({
service: 'Gmail',
auth: {
user: 'admin#gmail.com',
pass: 'admin56789'
}
});
transporter.sendMail(mailOptions, function(error, response){
if(error){
return res.send(error);
}
else{
res.send({
state:'success',
message:"Send"
});
}
});
})
"

Answer 1

You are sending "data" as content of the file. If you right-click your file, and choose open with notepad (or basic text editor) you'll see.
Nodemailer's attachments expect to receive the data of the file if you use the content option. You might prefer to use path which can be either the filepath or a URL.
Read more here.
Your attachment:
attachments: [
{
'filename':filename1,
'content': 'data',
'contentType':'application/pdf',
'contentDisposition':'attachment'
}
]
Should be closer to:
attachments: [
{
'filename':filename1,
//Either get filecontent
'content': filecontent,
//Or the file full path
'path':filepath,
'contentType':'application/pdf',
'contentDisposition':'attachment'
}
]