How to get all the tokens user has on a cis2_multi derived smart contract?

Smart Contracts
1

I mean without passing and querying for all the tokens individually like

{
“address”: {
“Account”: [address]
}, “token_id”: token
}

lets say I don’t know how and what tokens and their ids are there in that smart contract

I’ve tried passing empty string for token_id, but doesn’t work.

or atleast how to retreive all the tokens(ids) are on the smart contract. so can query individually in the array.

I don’t see any function on the base ci2_multi example that kinda does it, except for balanceOf, which strictly takes a token_id. But was wondering how ccdscan is able to show the tokens. Does it “view” the entire smart contract, I don’t think so.

Any help is appreciated.

Thank you.

2

The contract itself does not have any such endpoint, since it’s expensive to keep track of such an index in general.

This information would be provided by off-chain indexers. This is how CCDScan does it, it monitors the chain and records in its database the relevant activity, and relevant tokens in the contract.

3

To build a list of tokens in a CIS-2 contract, you need to collect all events that are MintEvent logged by the contract. This event contains the token ID.

1 Like