Storage Order

StorageOrder contract allows users to place a storage order on Elrond Network with EGLD and other ESDT tokens.

Deployment

Run erdpy contract build in project root directory to build contract.

Configure erdpy.json in project root directory, which looks like:

{
    "configurations": {
        "default": {
            "proxy": "https://gateway.elrond.com",
            "chainID": "1"
        }
    },
    "contract": {
        "deploy": {
            "verbose": true,
            "bytecode": "output/storage-order.wasm",
            "recall-nonce": true,
            "pem": "<path_to_your_wallet_pem>",
            "gas-limit": 60000000,
            "arguments": [
                "str:CRU-a5f4aa",
                "str:WEGLD-bd4d79",
                "erd1qqqqqqqqqqqqqpgqq66xk9gfr4esuhem3jru86wg5hvp33a62jps2fy57p"
            ],
            "send": true,
            "outfile": "deploy.interaction.json"
        }
    }
}

Note: Use the default value except the pem should be configured to real wallet pem file path.

Run erdpy contract deploy to deploy contract. Then check result on elrond explorer under account.

Initialize contract

Now the storage order contract has been deployed successfully. But some operations need to be done before placing order. Note: these operations can only be called by contract owner.

Set order price

erdpy --verbose contract call <contract_address> --recall-nonce --pem="<path_to_wallet_pem>" --chain="1" --gas-limit="60000000" --function="setOrderPrice" --arguments <base_price> <byte_price> <chain_state_price> --send

Add supported token

erdpy --verbose contract call <contract_address> --recall-nonce --pem="<path_to_wallet_pem>" --chain="1" --gas-limit="60000000" --function="addSupportedToken" --arguments <token_identifier> --send

Note: removeSupportedToken function can be used to remove token.

Add order node

erdpy --verbose contract call <contract_address> --recall-nonce --pem="<path_to_wallet_pem>" --chain="1" --gas-limit="60000000" --function="addOrderNode" --arguments <node_account> --send

Note: removeOrderNode function can be used to remove node.

Usage

Users can call and query the storage order contract now. Try following command to get price in EGLD with size 262158.

erdpy --verbose contract query <contract_address> --function="getPrice" --arguments str:WEGLD-bd4d79 262158

After obtaining the price which is 10240000, then use command below to place order:

erdpy --verbose contract call <contract_address> --recall-nonce --pem="<path_to_wallet_pem>" --chain="1" --gas-limit="60000000" --function="placeOrder" --arguments str:QmRRAA8bSvQAm8ovK5YUudT1pjiFe2YB6gFKSSyU6GT54B 262158 --value 10240000 --send

Note: for pay with other ESDT tokens, please refer to elrond doc