Nodemailer plugin that will inline base64 images
npm install nodemailer-plugin-inline-base64This plugin will convert base64-encoded images in your nodemailer email to be inline ("CID-referenced") attachments within the email. Inline attachments are useful because them embed the image inside the actual email, so it's viewable even if the user is checking their email without an internet connection. But if you're OK with requiring that the user be online to see the image, then consider hosting your images from AWS Cloudfront using nodemailer-base64-to-s3.
Base64 images are generally a bad idea because they aren't supported in most email clients. This Nodemailer plugin will take base64 images in your email html in the form:
and replace it with a CID-referenced attachment that works in all email clients.
```
yarn add nodemailer-plugin-inline-base64`
or`
npm install nodemailer-plugin-inline-base64 --save
#### 1. Load the nodemailer-plugin-inline-base64 plugin:
`javascript`
var inlineBase64 = require('nodemailer-plugin-inline-base64');
#### 2. Attach it as a 'compile' handler for a nodemailer transport object
`javascript`
nodemailerTransport.use('compile', inlineBase64(options))`
Options allow to set CID prefix1 {cidPrefix: 'somePrefix_'}`,cid:somePrefix_5fe3b631c651bdb1
then all inline images will have prefix in cid, i.e.: . If you don't need this,
you can use inlineBase64 plugin without options.
`javascript`
var nodemailer = require('nodemailer');
var inlineBase64 = require('nodemailer-plugin-inline-base64');
transporter.use('compile', inlineBase64({cidPrefix: 'somePrefix_'}));
transporter.sendMail({
from: 'me@example.com',
to: 'hello@mixmax.com',
html: '<img src="data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAlgAAAACCAYAAACE7KJkAAAAI0lEQVRYR+3DMQ0AAAgDsKlFzZxgEhOcbdIEAIBf7Y6qqn8P0MMQZPno7TMAAAAASUVORK5CYII=">'
});
`javascript``
mp.on("attachment", function(attachment, mail){
if (!attachment.contentId.includes('somePrefix')) { // process only images attached by user in reply
// ...
}
});
MIT