Multiple CDN support (JSDelivr)

[lenovouser]

Hello Jack,

it would be really nice if you could include the resources from https://cdnjs.com, you can get the list over json (https://cdnjs.com/packages.json). By the way, the JSON file gets loaded way faster over SSL/HTTPS than over HTTP, I think that probably is because of SPDY. So keep that in mind...

[jimaek]

You can also use our API to load multiple other CDNs https://github.com/jsdelivr/api

[lenovouser]

@jimaek :+1:

that seems like a great idea. But how do you handle the same script (e.g. jQuery) over multiple content delivery networks? Maybe let the users choose which cdn they want to use?

[jimaek]

@ApfelUser Sorry im a bit confused. Are you talking about the API or jsDelivr as a CDN?

[lenovouser]

No, I am talking about the fact that e.g. jQuery is hosted on Google CDN, CDNJS, MaxCDN etc. and I hope that the user gets to choose which cdn he wants to use. JSDelivr is no CDN? I thought it is like a index for all resources on all content delivery networks

[lenovouser]

There already exists a plugin which basically does what we want, but it (sorry) looks pretty bad and has a way different concept of using it (no autocomplete, etc.) https://github.com/dnbard/brackets-cdn

[jimaek]

1. jsDelivr is a CDN itself too. More info https://hacks.mozilla.org/2014/03/jsdelivr-the-advanced-open-source-public-cdn/ We just offer the API as an additional service
2. All CDNs have a different format so its not possible to request 1 project from all CDNs at the same time. At least not in v1. The user will need to set a preference CDN and then maybe add a failover in case Google for example is not hosting the project he requested.

For example Google http://api.jsdelivr.com/v1/google/libraries/jquery cdnjs http://api.jsdelivr.com/v1/cdnjs/libraries/jquery jsDelivr http://api.jsdelivr.com/v1/jsdelivr/libraries/jquery

[lenovouser]

Sorry, did not know that. The idea with the preference on which cdn to use seems good, but what happens when a library is not available on the chosen cdn? Sorry for my probably bad english - I am not a native speaker...

[jimaek]

Like I said in case of this plugin you can add a settings menu to allow the user to select his preferred CDN and an alternative CDN. For example he selects google so then all requests go to http://api.jsdelivr.com/v1/google/libraries but if Google is not hosting the requested project then the plugin will use the alternative CDN.

Thats my suggestion, its up to @szdc to do what he likes :)

[lenovouser]

:+1:

Well, then let's wait util @szdc responds... :smile:

[szdc]

Hey guys,

Thanks for the comments! Funnily enough this was actually where I planned to take the extension next - I stumbled upon jsDelivr after finishing it last night and noticed the APIs for the CDNs.

As for preferences, building on both of your thoughts:

• An option (an array?) to rank preferred CDNs to fall back on
• Currently the Google webpage is downloaded every time Brackets is opened/reloaded - should this be the default if we use multiple CDNs? Or should there be a preference that allows the user to specify once a day for example? I'm leaning towards once per day.
• Should all the CDN links be downloaded by default? This will allow us to show every library available. Maybe have this dictated by the CDNs listed in the array mentioned above, i.e. if you don't want to see libraries hosted by Google, remove Google from the array. Obviously this would mean that any library hosted exclusively by Google would not show up in the hints.

Thoughts? Feel free to fork and submit PRs once we agree on a general direction, I'm pretty busy over the next couple of days :smiley:

[szdc]

Started work on this issue in branch v2

[szdc]

Added basic functionality 9395ce52757006bcab775f8605d43ca263686970