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This is a request to add a key-authenticated query to the SNIP-20 spec, possibly called AllAllowances, that would take an address and a key as parameters and respond with a list of all non-zero allowances that address has authorized.

--Questions--
Should this query allow optional pagination? Do we expect the average user to have set enough allowances that pagination would be useful?

Should this query also filter out expired allowances? Because queries are performed locally, off-chain, there is no Env, so is checking whether the allowance has expired even feasible without access to an env.block.time?

See:

• scrtlabs/snip20-reference-impl#5
• scrtlabs/snip20-reference-impl#8

This is a request to add a key-authenticated query to the SNIP-721 spec, possibly called AllNftApprovals, that would take an address and a key as parameters and respond with a list of all the approvals granted for individual NFTs. While the SNIP-721 spec includes a query to list all operators (addresses that have transfer approval for ALL of the owner's NFTs), it does not currently have a query to list all individual NFT approvals.

--Questions--
Should this query allow optional pagination? Do we expect the average user to have set enough approvals that pagination would be useful?

Should this query also filter out expired approvals? Because queries are performed locally, off-chain, there is no Env, so is checking whether the approval has expired even feasible without access to an env.block.time?