CDN support

Flask-Bootstrap supports delivery via CDN or local resources, configurable at runtime. Upon initialization, Flask-Bootstrap will store a dictionary on your app named yourapp.extensions['bootstrap']['cdns'], which maps names to CDN instances.

You can use bootstrap_find_resource() in your templates as well when using other resources that may be available on CDNs. CDNs can be added by adding new entries to the dictionary mention above.

class flask_bootstrap.CDN

Base class for CDN objects.

get_resource_url(filename)

Return resource url for filename.

class flask_bootstrap.StaticCDN(static_endpoint='static', rev=False)

A CDN that serves content from the local application.

Parameters:

• static_endpoint – Endpoint to use.
• rev – If True, honor BOOTSTRAP_QUERYSTRING_REVVING.

class flask_bootstrap.WebCDN(baseurl)

Serves files from the Web.

Parameters:baseurl – The baseurl. Filenames are simply appended to this URL.

flask_bootstrap.bootstrap_find_resource(filename, cdn, use_minified=None, local=True)

Resource finding function, also available in templates.

Tries to find a resource, will force SSL depending on BOOTSTRAP_CDN_FORCE_SSL settings.

Parameters:

• filename – File to find a URL for.
• cdn – Name of the CDN to use.
• use_minified' – If set to True/False, use/don’t use minified. If None, honors BOOTSTRAP_USE_MINIFIED.
• local – If True, uses the local-CDN when BOOTSTRAP_SERVE_LOCAL is enabled. If False, uses the static-CDN instead.

Returns:

A URL.