We want to send an email with the following requirements:
- Email to have an Zip attachment.
- Zip file containing multiple log files
- Email needs to go through Amazon SES.
- Implementation to be done using NodeJS
We can also zip other sources, such as files from file system or a remote file. We just have to convert it to a Buffer to zip it with AdmZip.
We will use the following NodeJS library
PS: This whole operation is done in-memory. This should not be used on large files. In such case, Stream should be used.
Below is the code:
const NodeMailer = require("nodemailer");
const AdmZip = require("adm-zip");
const createSampleZip = () => {
const zip = new AdmZip();
zip.addFile("file1.txt", Buffer.from("content of file 1"));
zip.addFile("file2.txt", Buffer.from("content of file 2"));
return zip.toBuffer();
};
const sendEmail = () => {
var sender = NodeMailer.createTransport({
host: "email-smtp.eu-central-1.amazonaws.com",
port: 587,
secure: false, // upgrade later with STARTTLS
auth: {
user: "<<ses-smtp-username>>",
pass: "<<ses-smtp-password>>",
},
});
var mail = {
from: "noreply@example.com",
to: "recipient@gmail.com",
subject: "test email with attachment",
text: "mail body text with attachment",
html: "<h1>mail body in html with attachment</h1>",
// More options regarding attachment here: https://nodemailer.com/message/attachments/
attachments: [
{
filename: "zipfile.zip",
content: createSampleZip(),
},
],
};
console.log("starting to send email");
sender.sendMail(mail, function (error, info) {
if (error) {
console.log(error);
} else {
console.log("Email sent successfully: " + info.response);
}
});
};
sendEmail();
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