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How to mint 10000 NFT at single or minimum no of transactions on ethereum?

You can also look at the ERC721A contract. The contract supports minting of multiple NFTs at gas cost of one. There are some limitations, though: Token IDs must be subsequent Reducing the gas costs ...
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How to mint NFT using ethers.js?

First, make sure that the contract address is right. Next, try removing gasPrice, gasLimit and nonce from your transaction and let Metamask calculate those for you. Just try to execute the transaction ...
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Autoburn NFT's after certain amount of time

To check the time use Chainlink Keepers. Your contract will be able to check if the current date has passed the expiration date. After the condition is met you could call OpenZeppelin's _burn function:...
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