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I'm tinkering with creating NFTs via the cardano-cli. The various "how-to" pages I have found all have me download protocol.json using

cardano-cli query protocol-parameters \
--testnet-magic 1097911063 \
--out-file protocol.json

What I do not see is how that file is then utilized. It is never accessed or referenced in any of the steps needed to create the NFT, and certainly not in any of the code. Every other piece of code has very precise file references. Can anyone shed light? Thanks.

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  • In my understanding, their are various parameters like the constants involved when computing minimum ada requirement in a UTxO, etc., which are mentioned in protocol.json file.
    – Sourabh
    Dec 4, 2022 at 13:29

1 Answer 1

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protocol.json file from cardano-cli contains protocol parameters of the current network (mainnet, preview, preprod...).

It is used by cardano-cli when using various subcommands, such as cardano-cli transaction calculate-min-fee.

Actually, I do not know of any other subcommand using this file, so you are are not using it, you do not need to generate it.

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  • Thanks. Development is happening so quickly that "how to" pages from only 16 months ago are already out of date.
    – XiTouch
    Dec 5, 2022 at 18:53

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