services: Add support Vercel Remote Caching

[Xuanwo]

Vercel offers a remote caching service, which can be found at https://vercel.com/docs/concepts/monorepos/remote-caching. It would be beneficial for opendal to incorporate this support into their platform so that users can take advantage of this feature. For instance, users could run sccache in the Vercel CI environment.

[suyanhanx]

https://vercel.com/docs/rest-api/endpoints#artifacts

[Retrospection]

I may take this~

[suyanhanx]

Have fun!

[Xuanwo]

https://vercel.com/blog/vercel-storage

We will have:

• vercel cache
• vercel kv
• vercel storage

[Retrospection]

https://vercel.com/blog/vercel-storage

We will have:

• vercel cache
• vercel kv
• vercel storage

I'm planning to implement vercel cache support to get familiar with opendal's core design. And maybe then to try other implementation~

[Retrospection]

@Xuanwo @suyanhanx

Although Vercel seems change the API doc, but still want to discuss how to implement this case.

Here is the scene:

The Vercel offers a API endpoint for upload artifacts with 4 custom HTTP header:

It appears that the x-artifact-client-ci parameter and the x-artifact-client-interactive parameter remain constant throughout an access session, so they can be set as backend fields. However, the other two parameters, x-artifact-duration and x-artifact-tag, seem to change with each operation.

There is a possible place to put this logic currently, which is in OpRead. However, this also means that a local logic used only by Vercel Cache Service will leak to the global scope, which doesn't seem like a good design. Would you like to discuss how to support HTTP headers that change with each operation like this?

[Xuanwo]

Would you like to discuss how to support HTTP headers that change with each operation like this?

We don't need to support it for now.

[Xuanwo]

I'm planning to implement vercel cache support to get familiar with opendal's core design. And maybe then to try other implementation~

Take your time and have fun! We can split them into different issues.