How best to store Legacy Token (Token V1) Identifiers?

[gregnazario]

From Discord:

My question would be, what is the best way to keep an id of a token_v1 collection? With v2 it's easy as there is an Object, but for V1, they are generally defined by the creator and name.
So for now, what I do is just make a vector<vector> and use that as an Id, as i need the collection id for the key in a table

[gregnazario]

Storing Legacy Token(Token V1) Collection Ids

Since Legacy tokens collections are referenced by creator, and collection name, you'll just need to store both.

You can create a struct like below:

use aptos_framework::string::String;

struct LegacyCollectionId has store, drop {
  creator: address,
  name: String
}

struct Storage has key {
  legacy_collections: vector<LegacyCollectionId>
}

Storing Legacy Token(Token V1) Token Ids

For tokens, you can store the TokenDataId or the TokenId based on your needs:

vector<TokenId> ...

https://github.com/aptos-labs/aptos-core/blob/main/aptos-move/framework/aptos-token/sources/token.move#L168-L184

[unbound26z]

Thanks again for this answer!