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How cross-chain games are giving users the first look at a metaverse

Blockchain interoperability might just be becoming a reality, with cross-chain NFT games taking the lead.

Signing transaction on frontend and sending on backend server

Hi I’m making an NFT auction site similar to OpenSea to learn blockchain technology. But I have some security concerns about sending transactions on the frontend of my application because if a user decides to purchase an NFT and the transaction to transfer there funds is carried out on the frontend couldn’t they just edit::Listen

Hi I’m making an NFT auction site similar to OpenSea to learn blockchain technology. But I have some security concerns about sending transactions on the frontend of my application because if a user decides to purchase an NFT and the transaction to transfer there funds is carried out on the frontend couldn’t they just edit the javascript so they don’t have to pay anything but the gas fee? If so how can i prevent this? Can this be prevented by signing the transaction on the frontend and then sending it on the backend?

How cross-chain games are giving users the first look at a metaverse

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