Some optimization suggestions

[muratcorlu]

I congratulate you for this nice initiative. When I investigated the repository, I noticed some improvement areas:

1. Use Calver versioning system instead of putting historical data to folders. This will lead getting rid of huge amount of folders/files and a convenient way of reaching historical data for consumers. For example, an historical request would be:

https://cdn.jsdelivr.net/gh/fawazahmed0/[email protected]/currencies/eur.json

You can achieve this by tagging commits or publishing package to npm with that version in every release. As a plus, people can easily get list of dates (versions) with the api provided by jsdelivr.

2. Don't push minified versions to Git repo. Jsdelivr can already provide minified versions automatically.
3. Use NPM instead of GitHub as the source of jsdelivr. NPM is better for this both for jsdelivr and consumers. Jsdelivr suggests using NPM over Github since it can fetch files from NPM faster. Also if you use NPM, some people can use other NPM CDNs (like unpkg) if they need.
4. jsdelivr has an API endpoint to purge cache. You can call those endpoints after every new data release, so people can start consuming new data as soon as possible. That can also address inconsistency issues like Dates of eur.json and eur/jpy.json are not same sometimes #49, Delay when trying to retrieve the latest conversion rates from USD #73 .

Success!

[RaptaG]

Wow, these are some awesome suggestions, especially now that action times have reached >5 hours to complete. I really hope @fawazahmed0 considers them!

[fawazahmed0]

currency-api has stopped working, Please read the migration guide