This repository contains a sample implementation of a CW721 contract, a standardized way to represent and manage non-fungible tokens (NFTs) on a CosmWasm-enabled blockchain. CW721 is an extension of the ERC721 standard, popularized by the Ethereum blockchain, allowing for the creation, management, and transfer of NFTs.
- Minting: Allows the creation of new NFTs.
- Burning: NFTs can be destroyed, reducing the total supply.
- Transfer: Users can send NFTs to other addresses.
- Approve/Revoke: Provides the ability to approve other addresses to transfers NFTs on behalf of the user.
- Querying: Users can query balances, total supply, allowances, and more.
Rust and Cargo for building the contract.
- Clone the Repository
git clone https://github.com/MANTRA-Finance/cw721_contract_sample.git
cd cw721_contract_sample- Build the Contract
docker run --rm -v "$(pwd)":/code \
--mount type=volume,source="$(basename "$(pwd)")_cache",target=/target \
--mount type=volume,source=registry_cache,target=/usr/local/cargo/registry \
cosmwasm/optimizer:0.16.0Or if you are on MacOS:
docker run --rm -v "$(pwd)":/code \
--mount type=volume,source="$(basename "$(pwd)")_cache",target=/target \
--mount type=volume,source=registry_cache,target=/usr/local/cargo/registry \
cosmwasm/optimizer-arm64:0.16.0- Deploy the Contract
mantrachaind tx wasm store artifacts/moni.wasm --from <wallet> --node https://rpc.hongbai.mantrachain.io:443 --chain-id mantra-hongbai-1 --gas-prices 0.35uom --gas auto --gas-adjustment 1.4 -y --output json- Instantiate the Contract
MSG='{
"owner": "", // add your wallet
"max_tokens": 10000,
"unit_price": {
"denom": "uom",
"amount": "1000"
},
"name": "Mantra NFT",
"symbol": "MANTRANFT",
"token_code_id": 507, // the code id of a cw721_base contract
"token_uri": "https://ipfs.io/ipfs/QmZ"
}'
mantrachaind tx wasm instantiate <code_id> "$MSG" --from <wallet> --node https://rpc.hongbai.mantrachain.io:443 --chain-id mantra-hongbai-1 --label "MANTRACW721" --no-admin --gas-prices 0.35uom --gas auto --gas-adjustment 1.4 -y --output json