CW20 Token #

Transaction #

Transfer #

Transfer token from the sender user to the recipient.

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

Burn #

Burn tokens from total supply.

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

Send #

Work same as transfer but it sends token to contract, not user address.
And, it triggers given message in msg. The given message should be executable on recipient contract.
msg is base64-endcoded JSON string.

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

Mint #

It produces token and transfer to given recipient.

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

Increase/Decrease allowance #

It increases / decreases allowance of withdrawable token from the executor.
After execution, user token can be transferred by spender’s contract method execution, not only transfer.
And it expires on the given time point.

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

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

Transfer from / send from #

It transfers token from owner to recipient, which not owner nor recipeint are not the contract executor.
Before execution, the allowance should be increased.

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

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

Burn from #

Burns token from token supply, whose owner is not same as the contract executor.

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

Query #

Get balance #

Check the balance of the given address

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

Token info #

Check metadata of the contract.
It check:

Name
Decimals
Total supply
Other useful information

{
    "token_info": {}
}

Get minter #

{
    "minter": {}
}

Get allowance #

Get allowance list of the given owner & spender.

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

Get all allowance #

Get list of all allowance of the token.

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

Accounts list that have the token #

Get all accounts list of the token holder.

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