Missing event field names in post v14 metadata

[lukanus]

After this PR (#9993) textual description of event fields was removed from description field.
Eg. for balance Transfer event ot was changed from Transfer succeeded. \[from, to, value\] to Transfer succeeded.
This is really nowhere to be found in metadata that only returns data types like AccountId32,AccountId32,u128.
This change seems to broke many apis (like https://polkascan.io/polkadot/event/6202002-3, https://polkascan.io/polkadot/event/8273065-21 ).

I understand the benefit of changing description into keys, but at the same time neither System.Events nor Metadata isn't carrying this information anymore. Is there any new, undocumented way to retrieve this keys? (polkadotjs isn't returning this data either).
And if not, would it be possible to revert the descriptions to how they were?

Maybe @Wizdave97 ? Since you're the one who changed it?

[bkchr]

As you see here: #9896 (comment)

You can still access the data. This was removed by intention.

To know how to access this data with polkadotjs, you need to read the docs there or open an issue, but not in Substrate.

[lukanus]

@bkchr I'm not using polkadotjs. That was just an example of the code that is also not returning the fields.
I'm using pure ws storage requests to read the data. The issue you've linked does not explain in any way how to retrieve this value from node api. And obviously it is substrate - I even linked a PR in where this particular lines were removed.
https://github.com/paritytech/substrate/blob/master/frame/balances/src/lib.rs#L439 -> that's precisely an event substrate is producing.
And both state_getStorage SystemEvents and getMetadata are Substrate endpoints, this information is missing from both.
Would you be able to tell me then from where should I take this information using Substrate apis?

[bkchr]

Why should the node api return this kind of information?

The node isn't interested in this data.

As the linked issue describes, the data is available in the scale-info metadata. See here: https://docs.rs/scale-info/latest/scale_info/struct.Field.html#method.name