GET https://api.nftstorage.link/perma-cache/:url

[alanshaw]

Currently the gateway is configured with the same R2 bucket that the perma cache API uses and has to know how to retrieve data from it when given a URL that was previously cached by perma cache. All this knowledge and configuration should live only in the perma-cache API and we should instead expose an API route allowing the gateway to retrieve data using just a URL.

i.e. currently:

# caching data:
user -> perma-cache -> R2
# retrieving data
user <- gateway <- R2

change to:

# caching data:
user -> perma-cache -> R2
# retrieving data
user <- gateway <- perma-cache <- R2

New API route:

GET https://api.nftstorage.link/perma-cache/:url

[dchoi27]

Currently blocked on service bindings being released