Allow pins to have arbitrary metadata

[victorb]

Pre-check

• This is not a IPFS Cluster website content issue (file those here)
• I read the troubleshooting section of the website and it did not help
• I searched for similar issues in the repo without luck
• All my peers are running the same cluster version
• All my peers are configured using the same cluster secret

Basic information

• Type (mark as appropiate):
  • Bug
  • Feature request
  • Enhancement

Description

Currently, ipfs-cluster allows users to attach a title metadata which is stored together with the pins but separate from the pin itself.

For Cube (and other use cases as well), it'd be very helpful if ipfs-cluster could store additional metadata as well. Things that come into my mind is things like tags, links to other resources and description. Hopefully it can be implemented in a way that arbitrary structures can be supported.

The way the metadata would be created could be either when creating the pin itself, after the creation of a pin in ipfs-cluster (attaching metadata). We would also need to have a way of updating/deleting metadata. With this, comes the need of having a log of the modifications to metadata. Not sure if this is needed in a first iteration on ipfs-clusters side.

On the other hand, this issue comes from ipfs-shipyard/cube#12 which brings up the thought that maybe metadata is not something that we need directly in ipfs-cluster, maybe should stay a user-land thing instead. I'll leave that up to the cluster team to think about.

[hsanjuan]

Yes, this is going to arrive pretty pretty soon.

[hsanjuan]

This was fixed but there are some cosmetic things missing:

• Metadata cannot be set from the rest/client or ctl
• Metadata not shown on ctl (I think).

[kishansagathiya]

some option like --metadata a=2,b=random

[hsanjuan]

I wonder if this is a good usecase for stringSlice. --metadata a=b --metadata c=f ... it is not nice to disallow the use of a , in the metadata just so this can pase.

[hsanjuan]

@kishansagathiya this is missing for the add command.

[kishansagathiya]

It is done for add as well.
Take a look at this test da02357