Warning while sending template email via sendgrid with '&'

Question

I'm sending an email with help of the sendgrid api v3 but got the warning/error:

Content with characters ', " or & may need to be escaped with three brackets {{{ content }}}

in my api json i'm adding an link containing the & character:

{"dynamic_template_data": {"link":"...&..."}}

in my template i'm using the three brackets {{{ link }}}

Everything works as expected - email incl. link are send - but i always got the warning/error.

Do i miss something within the json?

score 6 · Accepted Answer · answered Aug 12 '19 at 00:16

6

I've looked at their code for node.js and as long as any content string has either a (",',&) it will console.warn the message your are seeing.

if (/['"&]/.test(value)) {
   console.warn(DYNAMIC_TEMPLATE_CHAR_WARNING);
}

See: https://github.com/sendgrid/sendgrid-nodejs/blob/47b6a5cd583cc10544ac19434419bdda5272b107/packages/helpers/classes/mail.js

You can notice the difference with using 2 vs 3 brackets on sendgrid's email template below:

answered Aug 12 '19 at 00:16

Jonathan002

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7

Is there a way to turn off this warning, it's very annoying when viewing lots of SendGrid email sends. – Luke Brown Dec 20 '19 at 14:31
2

did you found the way to disable this warning? I'm using `@sendgrid/mail": "^7.2.5` and the warning is still there – Kostanos Sep 16 '20 at 14:40
3

Looks like the only suggestion is to hide all warnings, which i don't think is a good idea: https://github.com/sendgrid/sendgrid-nodejs/blob/main/docs/use-cases/hide-warnings.md – NaturalDevCR Jan 21 '21 at 15:23
@NaturalDevCR yes, hiding all warnings doesn't feel like a good idea. But I checked the code and it looks like this is the only warning _so far_ that can be disabled by that flag. I suggest to hide this warning on specific environments only and still show them in dev and test environments. – Matthias Lohscheidt Jan 31 '23 at 13:43

score 1 · Answer 2 · answered May 23 '23 at 18:00

You can disable warnings setting hideWarnings only in you json message not globally:

const msg = {
  to: 'recipient@example.org',
  from: 'sender@example.org',
  templateId: 'd-f43daeeaef504760851f727007e0b5d0',
  dynamic_template_data: {
    link: '...&...',
  },
  hideWarnings: true, // now the warning won't be logged
};

Warning while sending template email via sendgrid with '&'

2 Answers2