How is withdrawExitMany currently supported in the latest matic.js? how many times does a user have to sign the exit transaction on Ethereum to claim the 5 NFTs?

Created by Sourajyoti Gupta, Modified on Fri, 28 Jul 2023 at 07:31 PM by Sourajyoti Gupta

According to maticjs withdrawExitMany function is only supported till Matic.js v3.3.0.

What we can instead use is the withdrawExitOnIndex() method

GIST TO CODESAMPLE:

burn 5 NFTs in one batch tx on Polygon: withdrawBatch.ts
check if the burn transaction hash has been checkpointed: isCheckpointed.ts
exit the batch on Ethereum & claim the 5 NFTs on Ethereum: withdrawExitOnIndexERC721.ts

with withdrawExitMany() being deprecated.

how many times does a user have to sign the exit transaction on Ethereum to claim the 5 NFTs? Answer: the number of NFTs you are burning = 5 times