Is there a way to check if package exists?

packages
1

Tried to google about it and didn’t find a way to check in server side code if some package is installed or missing. Any suggestions how to achieve this functionality?

2

There’s not really an official way but you can check for the existence of Package['author:package-name'].

6 Likes
3

Thanks mate! It works like a charm :slight_smile:

4

Is there a way to do this in a Blaze template?

I tried this, but it did not work:

{{#if Package["my:package"] }}
...
{{/if}}
5

Just register a global helper. Something as simple as this:

Template.registerHelper('packageIsInstalled', function (packageName) {
    return !!Package[packageName];
});

Then in your HTML use it like this:

{{#if packageIsInstalled 'my:package'}}
...
{{/if}}
2 Likes
6

Thanks. It seems a bit strange, though, that this would work, as the syntax in the template is exactly the same as in Package["my:package"].

7

Sorry, my bad. Should be:

{{#if packageIsInstalled 'my:package' }} ... {{/if}}

I edited my original reply as well, for those in a rush.

2 Likes
8

Ah, thanks :slight_smile:

1 Like