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potato 🥔

Writing and Deploying an NFT contract on Xion Chain

Note

Steps 1-5 aren't necessary (todo: add more here)

  1. Clone the CW-NFTs repo

    git clone https://github.com/CosmWasm/cw-nfts

  2. Navigate to the directory

    cd cw-nfts

  3. Compile and Optimize the Wasm bytecode

     docker run --rm -v "$(pwd)":/code \
   --mount type=volume,source="$(basename "$(pwd)")_cache",target=/target \
   --mount type=volume,source=registry_cache,target=/usr/local/cargo/registry \
   cosmwasm/optimizer:0.16.0

    We are using CosmWasm's Optimizing Compiler in the above step, it is a tool used to reduce the build size of compiled contracts, making them more efficient for deployment on the blockchain. Read more here

    This step will store all the output in the cw-nfts/artifacts directory

  4. Upload the bytecode to the chain

    $ RES=$(xiond tx wasm store ./artifacts/cw721_base.wasm \
        --chain-id xion-local-testnet-1 \
        --gas-adjustment 1.3 \
        --gas-prices 0uxion \
        --gas auto \
        -y --output json \
        --chain-id xion-testnet-1 \
        --node https://rpc.xion-testnet-1.burnt.com:443 \
        --from test)

    $ echo $RES

{"height":"0","txhash":"B557242F3BBF2E68D228EBF6A792C3C617C8C8C984440405A578FBBB8A385035","codespace":"","code":0,"data":"","raw_log":"","logs":[],"info":"","gas_wanted":"0","gas_used":"0","tx":null,"timestamp":"","events":[]}

  5. Get CODE_ID Query the chain using the transaction hash from previous step to get the CODE_ID

    $ CODE_ID=$(xiond query tx B557242F3BBF2E68D228EBF6A792C3C617C8C8C984440405A578FBBB8A385035 --node https://rpc.xion-testnet-1.burnt.com:443 --output json | jq -r '.events[-1].attributes[1].value')

    $ echo $CODE_ID

1213

  6. instantiate the contract

     MSG='{
   "name": "Potato NFT",
   "symbol": "POTATO",
   "minter": "xion12ed74j6y2km7y6a60d5rmea7ptkjh5k82akpc76at3dfgex388zstruy8t"
 }'

      xiond tx wasm instantiate $CODE_ID "$MSG" \
    --from test --label "potato nft" --gas-prices 0.025uxion --gas auto --gas-adjustment 1.3 -y --no-admin --chain-id xion-testnet-1 --node https://rpc.xion-testnet-1.burnt.com:443

    output:

      gas estimate: 217976
  code: 0
  codespace: ""
  data: ""
  events: []
  gas_used: "0"
  gas_wanted: "0"
  height: "0"
  info: ""
  logs: []
  raw_log: ""
  timestamp: ""
  tx: null
  txhash: 09D48FE11BE8D8BD4FCE11D236D80D180E7ED7707186B1659F5BADC4EC116F30

  7. Get contract address: Query the chain using the transaction hash from previous step to get the contract address

      $ CONTRACT=$(xiond query tx 09D48FE11BE8D8BD4FCE11D236D80D180E7ED7707186B1659F5BADC4EC116F30 --node https://rpc.xion-testnet-1.burnt.com:443 --output json | jq -r '.events[-1].attributes[1].value')

    $ echo $CONTRACT

xion1v6476wrjmw8fhsh20rl4h6jadeh5sdvlhrt8jyk2szrl3pdj4musyxj6gl

  8. Save contract address in src/utils/constants.ts