CW20 Token

Transaction #

Transfer #

Transfer tokens from a transaction executor to recipient.

{
    "transfer": {
        "recipient": "<Addr>",
        "amount": "123123",
    }
}

Burn #

Reduce tokens from the balance of a transaction executor.

{
    "burn": {
        "amount": "123123"
    }
}

Send #

Work same as transfer but it sends tokens to contract, not an user address.
When processing a transaction, it triggers the given message in msg. The given message should be executable on its recipient contract.
msg is base64-encoded JSON string.

{
    "send": {
        "contract": "<Addr>",
        "amount": "123123",
        "msg": "1234erwfaffaesfaef="
    }
}

Mint #

Issue amount of tokens and transfer them to the given recipient.

{
    "mint": {
        "recipient": "<Addr>",
        "amount": "123123"
    }
}

Increase/Decrease Allowance #

Increases/Decreases the allowance for spender to handle specific amount of token.
After execution, the token can be transferred by executing a transaction from spender. Its transferability expires on the given time point.

{
    "increase_allowance": {
        "spender": "<Addr>",
        "amount": "123123",
        "expires": {
            "at_height": 123123,
            // or
            "at_time": 123123,
            // or
            "never": {}
        }
    }
}

{
    "decrease_allowance": {
        "spender": "<Addr>",
        "amount": "123123",
        "expires": {
            "at_height": 123123,
            // or
            "at_time": 123123,
            // or
            "never": {}
        }
    }
}

Transfer from/Send from #

Transfers amount of token from owner to recipient. The allowance should be increased before execution.

{
    "transfer_from": {
        "owner": "<Addr>",
        "recipient": "<Addr>",
        "amount": "123123",
    }
}

{
    "send_from": {
        "owner": "<Addr>",
        "recipient": "<Addr>",
        "amount": "123123",
        "msg": "<base64_encoded_json_message>"
    }
}

Burn from #

Burn a specific amount of token from owner’s balance.

{
    "burn_from": {
        "owner": "<Addr>",
        "amount": "123123"
    }
}

Query #

Get Balance #

Check the token balance of the given address

{
    "balance": {
        "address": "<Addr>"
    }
}

Token Info #

Check metadata of the contract.
It checks:

• Name
• Decimals
• Total supply
• Other useful information

{
    "token_info": {}
}

Minter #

{
    "minter": {}
}

Allowance #

Get the allowance list of the given owner and spender.

{
    "allowance": {
        "owner": "<Addr>",
        "spender": "<Addr>"
    }
}

All Allowances #

Get the list of all allowances of the token that owner received and not expired.

{
    "all_allowances": {
        "owner": "<Addr>",
        "start_after": "<Addr>", // optional
        "limit": 1 // optional
    }
}

All Accounts #

Get all account list of the token holder.

{
    "all_accounts": {
        "start_after": "<Addr>", // optional
        "limit": 1 // optional
    }
}