Smart Contract deployment

Let's deploy our first smart contract on the blockchain. For this we will use mxpy tools previously installed. We will deploy the adder contract from the previous section.

In the repo there is a folder named interaction.

Let's inspect the testnet.snippets.sh file:

ALICE="${USERS}/alice.pem"
ADDRESS=$(mxpy data load --key=address-testnet)
DEPLOY_TRANSACTION=$(mxpy data load --key=deployTransaction-testnet)
PROXY=https://testnet-api.multiversx.com

deploy() {
    mxpy --verbose contract deploy --project=${PROJECT} --recall-nonce --pem=${ALICE} --gas-limit=50000000 --arguments 0 --send --outfile="deploy-testnet.interaction.json" --proxy=${PROXY} --chain=T || return

    TRANSACTION=$(mxpy data parse --file="deploy-testnet.interaction.json" --expression="data['emittedTransactionHash']")
    ADDRESS=$(mxpy data parse --file="deploy-testnet.interaction.json" --expression="data['contractAddress']")

    mxpy data store --key=address-testnet --value=${ADDRESS}
    mxpy data store --key=deployTransaction-testnet --value=${TRANSACTION}

    echo ""
    echo "Smart contract address: ${ADDRESS}"
}

add() {
    read -p "Enter number: " NUMBER
    mxpy --verbose contract call ${ADDRESS} --recall-nonce --pem=${ALICE} --gas-limit=5000000 --function="add" --arguments ${NUMBER} --send --proxy=${PROXY} --chain=T
}

getSum() {
    mxpy --verbose contract query ${ADDRESS} --function="getSum" --proxy=${PROXY}
}

This file helps us to easily make deployment and transactions on the blockchain.

First, let's modify the ALICE variable and put our own pem file.

After that use source command or . in bash to interpret the file:

costin@Byblos:~/mvx/mx-contracts-rs/contracts/adder/interaction$ . testnet.snippets.sh 

This will load all the variables and functions in the environment. Now we can call the deploy function:

costin@Byblos:~/mvx/mx-contracts-rs/contracts/adder/interaction$ deploy
DEBUG:cli.contracts:deploy
DEBUG:accounts:AccountBase.sync_nonce()
DEBUG:urllib3.connectionpool:Starting new HTTPS connection (1): testnet-api.multiversx.com:443
DEBUG:urllib3.connectionpool:https://testnet-api.multiversx.com:443 "GET /address/erd1ld6er5zpdze3cynzkapur9qhzh826jje6n87g7tvdfrtszs8jn2qv44nqd HTTP/1.1" 200 363
DEBUG:accounts:AccountBase.sync_nonce() done: 1
INFO:cli.contracts:Contract address: erd1qqqqqqqqqqqqqpgqgjdcmz3049s0g2zwm6dzfrnk5s3qwn8yjn2qltmga4
INFO:utils:View this contract address in the MultiversX Testnet Explorer: https://testnet-explorer.multiversx.com/accounts/erd1qqqqqqqqqqqqqpgqgjdcmz3049s0g2zwm6dzfrnk5s3qwn8yjn2qltmga4
INFO:transactions:Transaction.send: nonce=1
DEBUG:urllib3.connectionpool:Starting new HTTPS connection (1): testnet-api.multiversx.com:443
DEBUG:urllib3.connectionpool:https://testnet-api.multiversx.com:443 "POST /transaction/send HTTP/1.1" 201 106
INFO:transactions:Hash: 09756e622aea6682f8108661270eb0bfe4503fae9ebd1e0253e179daaabbcbe1
INFO:utils:View this transaction in the MultiversX Testnet Explorer: https://testnet-explorer.multiversx.com/transactions/09756e622aea6682f8108661270eb0bfe4503fae9ebd1e0253e179daaabbcbe1
WARNING:cli.data:Always review --expression parameters before executing this command!
WARNING:cli.data:Always review --expression parameters before executing this command!
WARNING:cli.data:Never use this command to store sensitive information! Data is unencrypted.
INFO:cli.data:Data has been stored at key = 'address-testnet', in partition = '*'.
WARNING:cli.data:Never use this command to store sensitive information! Data is unencrypted.
INFO:cli.data:Data has been stored at key = 'deployTransaction-testnet', in partition = '*'.

Smart contract address: erd1qqqqqqqqqqqqqpgqgjdcmz3049s0g2zwm6dzfrnk5s3qwn8yjn2qltmga4

Now we have performed a deployment of the wasm binary (our adder contract) in the blockchain.

Notice the MultiversX Testnet Explorer: https://testnet-explorer.multiversx.com/transactions/09756e622aea6682f8108661270eb0bfe4503fae9ebd1e0253e179daaabbcbe1. Click on the link to see your transaction.

Notice the Smart contract address: erd1qqqqqqqqqqqqqpgqgjdcmz3049s0g2zwm6dzfrnk5s3qwn8yjn2qltmga4. Go to the Testnet Explorer and search for your SC address.

Notice the contract deployed on testnet:

Observe the fields Owner, Deployed (timestamp).