caver.kct.kip7

caver.kct.kip7는 JavaScript의 객체로서 KIP-7을 구현하는 스마트 컨트랙트를 Klaytn 블록체인 플랫폼에서 쉽게 다룰 수 있도록 도와줍니다.

caver.kct.kip7는 KIP-7 토큰 컨트랙트를 구현하기 위해 caver.contract를 상속합니다. caver.kct.kip7은 caver.contract와 동일한 속성값들을 가지며, 추가 기능 구현을 위해 메소드를 더 가지고 있습니다. 이 장은 caver.kct.kip7 메소드들 중 오직 새롭게 추가된 것들만 소개합니다.

caver.kct.kip7에서 사용된 abi와 바이트 코드는 OpenZeppelin 예시를 사용하여 구현되었습니다.

The code that implements KIP-7 for caver-js is available on the Klaytn Contracts Github Repo.

For more information about KIP-7, see Klaytn Improvement Proposals.

caver.kct.kip7.deploy

caver.kct.kip7.deploy(tokenInfo, deployer)

KIP-7 토큰 컨트랙트를 Klaytn 블록체인에 배포합니다. caver.kct.kip7.deploy를 사용해 배포한 컨트랙트는 KIP-7 표준을 따르는 대체 가능 토큰입니다.

성공적으로 배포된 후, 프로미스는 새로운 KIP7 인스턴스를 반환할 것입니다.

Parameters

The tokenInfo object must contain the following:

참고 initialSupply 파라미터는 number 타입을 받지만, 입력된 값이 number.MAX_SAFE_INTEGER 범위를 초과할 경우, 예상치 못한 결과나 오류가 발생할 수 있습니다. In this case, it is recommended to use the BigNumber type, especially for a uint256 sized numeric input value.

Return Value

PromiEvent: 이벤트 이미터와 결합된 프로미스이며 새로운 KIP7 인스턴스를 반환합니다. Additionally, the following events can occur:

Example

// 프로미스 사용
> caver.kct.kip7.deploy({
    name: 'Jasmine',
    symbol: 'JAS',
    decimals: 18,
    initialSupply: '100000000000000000000',
}, '0x{address in hex}').then(console.log)
KIP7 {
    ...
    _address: '0x598367e443D8a2b644Fec69a2C12aF44BC283f23',
    _jsonInterface: [
        ...
        {
            anonymous: false,
            inputs: [
                { indexed: true, name: 'owner', type: 'address' },
                    { indexed: true, name: 'spender', type: 'address' },
                    { indexed: false, name: 'value', type: 'uint256' }
            ],
            name: 'Approval',
            type: 'event',
            signature:  '0x8c5be...'
        }
    ] 
}

// 두 번째 파라미터로서 객체 전달
> caver.kct.kip7.deploy({
        name: 'Jasmine',
        symbol: 'JAS',
        decimals: 18,
        initialSupply: '100000000000000000000',
    },
    {
        from: '0x{address in hex}',
        feeDelegation: true,
        feePayer: '0x{address in hex}',
    }).then(console.log)

// 이벤트 이미터와 프로미스 사용
> caver.kct.kip7.deploy({
    name: 'Jasmine',
    symbol: 'JAS',
    decimals: 18,
    initialSupply: '100000',
}, '0x{address in hex}')
.on('error', function(error) { ... })
.on('transactionHash', function(transactionHash) { ... })
.on('receipt', function(receipt) {
    console.log(receipt.contractAddress) // contains the new token contract address
})
.then(function(newKIP7Instance) {
    console.log(newKIP7Instance.options.address) // instance with the new token contract address
})

caver.kct.kip7.detectInterface

caver.kct.kip7.detectInterface(contractAddress)

Returns the information of the interface implemented by the token contract. 이 정적 함수는 kip7.detectInterface를 사용합니다.

Parameters

Return Value

Promise returns an object containing the result with boolean values whether each KIP-7 interface is implemented.

Example

> caver.kct.kip7.detectInterface('0x{address in hex}').then(console.log)
{
    IKIP7: true,
    IKIP7Metadata: true,
    IKIP7Mintable: true,
    IKIP7Burnable: true,
    IKIP7Pausable: true,
}

caver.kct.kip7.create

caver.kct.kip7.create([tokenAddress])

새로운 KIP7 인스턴스를 인스턴스 메소드, 이벤트들과 함께 생성합니다. 이 함수는 new KIP7과 동일하게 작동합니다.

참고 caver.kct.kip7.create는 caver-js v1.6.1부터 지원됩니다.

Parameters

new KIP7를 참고하세요.

Return Value

See the new KIP7.

Example

// 매개변수 없는 KIP7 인스턴스 생성
> const kip7 = caver.kct.kip7.create()

// 토큰 주소를 가진 KIP7 인스턴스 생성
> const kip7 = caver.kct.kip7.create('0x{address in hex}')

new KIP7

new caver.kct.kip7([tokenAddress])

Creates a new KIP7 instance with its bound methods and events.

Parameters

Return Value

Example

// 매개변수 없는 KIP7 인스턴스 생성
> const kip7 = caver.kct.kip7()

// 토큰 주소를 가진 KIP7 인스턴스 생성
> const kip7 = caver.kct.kip7('0x{address in hex}')

kip7.clone

kip7.clone([tokenAddress])

현재 KIP7 인스턴스를 복제합니다.

Parameters

Return Value

Example

> const kip7 = new caver.kct.kip7(address)

// 매개변수 없이 클론
> const cloned = kip7.clone()

// 새 토큰 컨트랙트 주소를 가지고 클론
> const cloned = kip7.clone('0x{address in hex}')

kip7.detectInterface

kip7.detectInterface()

Returns the information of the interface implemented by the token contract.

Parameters

None

Return Value

Promise returns an object containing the result with boolean values whether each KIP-7 interface is implemented.

Example

> kip7.detectInterface().then(console.log)
{
    IKIP7: true,
    IKIP7Metadata: true,
    IKIP7Mintable: true,
    IKIP7Burnable: true,
    IKIP7Pausable: true,
}

kip7.supportsInterface

kip7.supportsInterface(interfaceId)

Return true if this contract implements the interface defined by interfaceId.

Parameters

Return Value

프로미스는 Boolean을 반환: 이 컨트랙트가 해당 interfaceId를 가진 인터페이스를 구현한다면 true를 반환합니다.

Example

> kip7.supportsInterface('0x65787371').then(console.log)
true

> kip7.supportsInterface('0x3a2820fe').then(console.log)
false

kip7.name

kip7.name()

토큰 이름을 반환합니다.

Parameters

None

Return Value

Promise returns string: The name of the token.

Example

> kip7.name().then(console.log)
Jasmine

kip7.symbol

kip7.symbol()

토큰 심볼을 반환합니다.

Parameters

None

Return Value

Promise returns string: The symbol of the token.

Example

> kip7.symbol().then(console.log)
JAS

kip7.decimals

kip7.decimals()

토큰이 사용하는 소수점 자릿수를 반환합니다.

Parameters

None

Return Value

프로미스는 Number를 반환: 토큰이 사용하는 소수점 자릿수입니다.

Example

> kip7.decimals().then(console.log)
18

kip7.totalSupply

kip7.totalSupply()

토큰의 총 공급량을 반환합니다.

Parameters

None

Return Value

Promise returns BigNumber: The total number of tokens.

Example

> kip7.totalSupply().then(console.log)
100000000000000000000

kip7.balanceOf

kip7.balanceOf(address)

주어진 계정 주소의 잔액을 반환합니다.

Parameters

Return Value

Promise returns BigNumber: The account balance.

Example

> kip7.balanceOf('0x{address in hex}').then(console.log)
100000

kip7.allowance

kip7.allowance(owner, spender)

spender가 owner의 잔액에서 인출하도록 허락받은 토큰 수량을 반환합니다.

Parameters

Return Value

프로미스는 BigNumber를 반환: 토큰 소유자를 대신해 토큰 사용자가 사용할 수 있도록 남아있는 토큰 수량입니다.

Example

> kip7.allowance('0x{address in hex}', '0x{address in hex}').then(console.log)
0

> kip7.allowance('0x{address in hex}', '0x{address in hex}').then(console.log)
10

kip7.isMinter

kip7.isMinter(address)

주어진 계정이 새 KIP-7 토큰을 발행할 수 있는 minter라면 true를 반환합니다.

Parameters

Return Value

프로미스는 Boolean을 반환: 계정이 발행자라면 true를 반환합니다.

Example

> kip7.isMinter('0x{address in hex}').then(console.log)
true

> kip7.isMinter('0x{address in hex}').then(console.log)
false

kip7.isPauser

kip7.isPauser(address)

주어진 계정이 토큰 전송을 멈출 수 있는 pauser라면 true를 반환합니다.

Parameters

Return Value

프로미스는 Boolean을 반환: 이 계정이 중지 권한을 가진 계정이라면 true를 반환합니다.

Example

> kip7.isPauser('0x{address in hex}').then(console.log)
true

> kip7.isPauser('0x{address in hex}').then(console.log)
false

kip7.paused

kip7.paused()

컨트랙트가 작동을 멈추었다면 true를 반환하고, 그렇지 않으면 false를 반환합니다.

Parameters

None

Return Value

프로미스는 Boolean을 반환: 이 컨트랙트가 중지되었다면 true를 반환합니다.

Example

> kip7.paused().then(console.log)
true

> kip7.paused().then(console.log)
false

kip7.approve

kip7.approve(spender, amount [, sendParam])

토큰 소유자의 토큰을 spender가 amount만큼 사용하도록 허락합니다.

이 메서드는 토큰 소유자가 트랜잭션 발신자로서 Klaytn 네트워크에 트랜잭션을 전송하며, 트랜잭션 수수료가 트랜잭션 발신자에게 부과됩니다.

Parameters

참고 amount 파라미터는 Number 타입 값을 받지만, 입력된 값이 Number.MAX_SAFE_INTEGER 범위를 초과하면 예상치 못한 결과 또는 오류를 발생시킬 수 있습니다. In this case, it is recommended to use the BigNumber type, especially for a uint256 sized numeric input value.

The sendParam object contains the following:

NOTE feeDelegation, feePayer and feeRatio are supported since caver-js v1.6.1.

Return Value

Promise returns object - The receipt containing the result of the transaction execution. If you want to know about the properties inside the receipt object, see the description of getTransactionReceipt. KIP7 인스턴스의 영수증은 'logs' 속성 대신에 ABI로 파싱된 'events' 속성을 가지고 있습니다.

Example

// 주어진 필드에서 sendParam 객체를 통해 전송
> kip7.approve('0x{address in hex}', 10, { from: '0x{address in hex}' }).then(console.log)
{
    blockHash: '0xf010a98f66b6b36943175cd5b249da54e84abed551cfa02846a2900ddab968c7',
    blocknumber: 2098,
    contractAddress: null,
    from: '0x2f7dc98bd93a0544b03d6ff428a6f4ae04b32676',
    ...
    status: true,
    to: '0x8ca777e464a83b939ae131ca037f0d8728c6929e',
    ...
    events: {
        Approval: {
            address: '0x8CA777e464a83b939AE131CA037F0d8728C6929e',
            blocknumber: 2098,
            transactionHash: '0xf7469c0420cb5ebb0fbf64a314bd0c9ee7517ea64dd72eefa59bc8005bbc0f99',
            transactionIndex: 0,
            blockHash: '0xf010a98f66b6b36943175cd5b249da54e84abed551cfa02846a2900ddab968c7',
            logIndex: 0,
            id: 'log_c6ec61aa',
            returnValues: {
                '0': '0x2f7Dc98Bd93A0544B03d6ff428a6f4ae04b32676',
                '1': '0xe36ffD7bc4D588c480B5925B9622881F9d85ea30',
                '2': '10',
                owner: '0x2f7Dc98Bd93A0544B03d6ff428a6f4ae04b32676',
                spender: '0xe36ffD7bc4D588c480B5925B9622881F9d85ea30',
                value: '10'
            },
            event: 'Approval',
            signature: '0x8c5be1e5ebec7d5bd14f71427d1e84f3dd0314c0f7b2291e5b200ac8c7c3b925',
            raw: {
                data: '0x000000000000000000000000000000000000000000000000000000000000000a',
                topics: [ '0x8c5be...', '0x00...676', '0x00...a30' ]
            },
        },
    },
}

//스마트 컨트랙트 실행에 수수료 대납 트랜잭션 사용
> kip7.approve('0x{address in hex}', 10, {
    from: '0x{address in hex}'
    feeDelegation: true,
    feePayer: '0x{address in hex}'
}).then(console.log)

// kip7.options.from 사용
// kip7 인스턴스로 트랜잭션을 보낼 때 kip7.options.from 값이 정해져 있는 경우, 
// sendParam 객체에 `from`를 명시하지 않는 이상 kip7 인스턴스로 트랜잭션을 보낼 때 그 값을 사용
> kip7.options.from = '0x{address in hex}'
> kip7.approve('0x{address in hex}', 10).then(console.log)

kip7.transfer

kip7.transfer(recipient, amount [, sendParam])

주어진 amount만큼의 토큰을 토큰 소유자 잔액에서 recipient에게 보냅니다. 토큰 소유자는 이 토큰 전송을 직접 실행해야 합니다. 따라서 토큰 소유자는 이 트랜잭션 발신자이어야 하며, 토큰 소유자의 주소는 반드시 sendParam.from 또는 kip7.options.from에 주어져야 합니다. sendParam.from 또는 kip7.options.from가 주어지지 않는다면 에러가 발생합니다.

Note that sending this transaction will charge the transaction fee to the transaction sender.

Parameters

NOTE The amount parameter accepts number type but if the fed value were out of the range capped by number.MAX_SAFE_INTEGER, it might cause an unexpected result or error. In this case, it is recommended to use the BigNumber type, especially for a uint256 sized numeric input value.

Return Value

Promise returns object - The receipt containing the result of the transaction execution. If you want to know about the properties inside the receipt object, see the description of getTransactionReceipt. Receipts from KIP7 instances have an 'events' attribute parsed via ABI instead of a 'logs' attribute.

Example

// 주어진 필드에서 sendParam 객체를 통해 전송
> kip7.transfer('0x{address in hex}', 10, { from: '0x{address in hex}' }).then(console.log)
{
    blockHash: '0x8a078c3a73d678cdd85d471eb21e9ed7d695f8b96fc7315cfa59c1f68be3d2bf',
    blocknumber: 1353,
    contractAddress: null,
    from: '0x2f7dc98bd93a0544b03d6ff428a6f4ae04b32676',
    ...
    status: true,
    to: '0x05871c21664e18b2906545f8831695650a8f4056',
    ...
    events: {
        Transfer: {
            address: '0x05871c21664E18b2906545f8831695650a8f4056',
            blocknumber: 1353,
            transactionHash: '0x8bd2b21a06241e4cfc0af1ec40e7b15444f730c7529440648aa4ed6b697f08f4',
            transactionIndex: 0,
            blockHash: '0x8a078c3a73d678cdd85d471eb21e9ed7d695f8b96fc7315cfa59c1f68be3d2bf',
            logIndex: 0,
            id: 'log_82ef7705',
            returnValues: {
                '0': '0x2f7Dc98Bd93A0544B03d6ff428a6f4ae04b32676',
                '1': '0xE411cb0B61FDcC06497794fE3f49F65D5dE41f59',
                '2': '10',
                from: '0x2f7Dc98Bd93A0544B03d6ff428a6f4ae04b32676',
                to: '0xE411cb0B61FDcC06497794fE3f49F65D5dE41f59',
                value: '10'
            },
            event: 'Transfer',
            signature: '0xddf252ad1be2c89b69c2b068fc378daa952ba7f163c4a11628f55a4df523b3ef',
            raw: {
                data: '0x000000000000000000000000000000000000000000000000000000000000000a',
                topics: [ '0xddf25...', '0x00...676', '0x00...f59' ]
            },
        },
    },
}

//스마트 컨트랙트 실행에 수수료 대납 트랜잭션 사용
> kip7.transfer('0x{address in hex}', 10, {
    from: '0x{address in hex}'
    feeDelegation: true,
    feePayer: '0x{address in hex}'
}).then(console.log)

// kip7.options.from 사용
// kip7 인스턴스로 트랜잭션을 보낼 때 kip7.options.from 값이 정해져 있는 경우, 
// sendParam 객체에 `from`를 명시하지 않는 이상 kip7 인스턴스로 트랜잭션을 보낼 때 그 값을 사용
> kip7.options.from = '0x{address in hex}'
> kip7.transfer('0x{address in hex}', 10).then(console.log)

kip7.safeTransfer

kip7.safeTransfer(recipient, amount [, data] [, sendParam])

주어진 amount만큼의 토큰을 토큰 소유자 잔액에서 recipient에게 안전하게 보냅니다. The token owner should execute this token transfer with its own hands. Thus, the token owner should be the sender of this transaction whose address must be given at sendParam.from or kip7.options.from. Without sendParam.from nor kip7.options.from being provided, an error would occur.

If the recipient was a contract address, it should implement IKIP7Receiver.onKIP7Received. Otherwise, the transfer is reverted.

Note that sending this transaction will charge the transaction fee to the transaction sender.

Parameters

NOTE The amount parameter accepts number type but if the fed value were out of the range capped by number.MAX_SAFE_INTEGER, it might cause an unexpected result or error. In this case, it is recommended to use the BigNumber type, especially for a uint256 sized numeric input value.

Return Value

Promise returns object - The receipt containing the result of the transaction execution. If you want to know about the properties inside the receipt object, see the description of getTransactionReceipt. KIP7 인스턴스의 영수증은 'logs' 속성 대신에 ABI로 파싱된 'events' 속성을 가지고 있습니다.

Example

// 주어진 필드에서 sendParam 객체를 통해 전송 (데이터 없이)
> kip7.safeTransfer('0x{address in hex}', 10, { from: '0x{address in hex}' }).then(console.log)
{
    blockHash: '0x208cd64b95bbd91420fc6b1a7b514a8d3051d09333d79244b6b74ff2f7f3eee4',
    blocknumber: 2384,
    contractAddress: null,
    from: '0xc2c84328845a36fe0c4dcef370d24ec80cf85221',
    ...
    status: true,
    to: '0xe4aeba6306b0df023aa4b765960fa59dbe925950',
    ...
    events: {
            Transfer: {
                    address: '0xe4AeBa6306b0Df023AA4b765960fA59dbE925950',
                    blocknumber: 2384,
                    transactionHash: '0x47bb085947c282722c1ceab1f4f0380d911ce464a47a19f1e7bddfe08a13563d',
                    transactionIndex: 0,
                    blockHash: '0x208cd64b95bbd91420fc6b1a7b514a8d3051d09333d79244b6b74ff2f7f3eee4',
                    logIndex: 0,
                    id: 'log_58e5e06d',
                    returnValues: {
                            '0': '0xC2C84328845A36Fe0c4DcEf370d24ec80cF85221',
                            '1': '0x67B092d09B5e94fed58609777cc7Ac9193553B73',
                            '2': '10',
                            from: '0xC2C84328845A36Fe0c4DcEf370d24ec80cF85221',
                            to: '0x67B092d09B5e94fed58609777cc7Ac9193553B73',
                            value: '10',
                    },
                    event: 'Transfer',
                    signature: '0xddf252ad1be2c89b69c2b068fc378daa952ba7f163c4a11628f55a4df523b3ef',
                    raw: {
                            data: '0x000000000000000000000000000000000000000000000000000000000000000a',
                            topics: [ '0xddf25...', '0x00...221', '0x00...b73' ],
                    },
            },
    },
}

//스마트 컨트랙트 실행에 수수료 대납 트랜잭션 사용
> kip7.safeTransfer('0x{address in hex}', 10, {
    from: '0x{address in hex}'
    feeDelegation: true,
    feePayer: '0x{address in hex}'
}).then(console.log)

// 주어진 from 필드에서 sendParam 객체를 통해 전송(데이터와 함께)
> kip7.safeTransfer('0x{address in hex}', 11, '0x1234', { from: '0x{address in hex}' }).then(console.log)

// kip7.options.from 사용
// kip7 인스턴스로 트랜잭션을 보낼 때 kip7.options.from 값이 정해져 있는 경우, 
// sendParam 객체에 `from`를 명시하지 않는 이상 kip7 인스턴스로 트랜잭션을 보낼 때 그 값을 사용
> kip7.options.from = '0x{address in hex}'
> kip7.safeTransfer('0x{address in hex}', 11).then(console.log)

kip7.transferFrom

kip7.transferFrom(sender, recipient, amount [, sendParam])

Transfers the given amount of the token from the token owner's balance to the recipient. 토큰 소유자의 토큰을 보내도록 허락받은 주소가 이 토큰 전송 트랜잭션을 실행할 수 있습니다. 따라서 토큰을 보내도록 허락받은 계정이 이 트랜잭션 발신자이어야 하며, 허락받은 계정의 주소는 반드시 sendParam.from 또는 kip7.options.from에 주어져야 합니다. Without sendParam.from nor kip7.options.from being provided, an error would occur.

Note that sending this transaction will charge the transaction fee to the transaction sender.

Parameters

NOTE The amount parameter accepts number type but if the fed value were out of the range capped by number.MAX_SAFE_INTEGER, it might cause an unexpected result or error. In this case, it is recommended to use the BigNumber type, especially for a uint256 sized numeric input value.

Return Value

Promise returns object - The receipt containing the result of the transaction execution. If you want to know about the properties inside the receipt object, see the description of getTransactionReceipt. Receipts from KIP7 instances have an 'events' attribute parsed via ABI instead of a 'logs' attribute.

Example

// 주어진 필드에서 sendParam 객체를 통해 전송
> kip7.transferFrom('0x{address in hex}', '0x{address in hex}', 10000, { from: '0x{address in hex}' }).then(console.log)
{
    blockHash: '0x3adec238e06a9e8d5fa09fc1e1d7c8748b64d07e89678d27e8a379a12a34974f',
    blocknumber: 2331,
    contractAddress: null,
    from: '0x01958c62ab4aec7fc282bec9491da0ef7f830ac2',
    ...
    status: true,
    to: '0x3d5eb40665d25aaa4160023c4278fa6a94ba4acb',
    ...
    events: {
        Transfer: {
            address: '0x3D5EB40665D25aAa4160023C4278FA6A94BA4aCb',
            blocknumber: 2331,
            transactionHash: '0x5b2232b68681f19d9b6fcd6fb03964ef105912fecb772c11c8ec9fc906be4cbf',
            transactionIndex: 0,
            blockHash: '0x3adec238e06a9e8d5fa09fc1e1d7c8748b64d07e89678d27e8a379a12a34974f',
            logIndex: 0,
            id: 'log_ae57b7a0',
            returnValues: {
                '0': '0x2f7Dc98Bd93A0544B03d6ff428a6f4ae04b32676',
                '1': '0x49ff9cb8BB8CA10D7f6E1094b2Ba56c3C2DBA231',
                '2': '10000',
                from: '0x2f7Dc98Bd93A0544B03d6ff428a6f4ae04b32676',
                to: '0x49ff9cb8BB8CA10D7f6E1094b2Ba56c3C2DBA231',
                value: '10000'
            },
            event: 'Transfer',
            signature: '0xddf252ad1be2c89b69c2b068fc378daa952ba7f163c4a11628f55a4df523b3ef',
            raw: {
                data: '0x0000000000000000000000000000000000000000000000000000000000002710',
                topics: [ '0xddf25...', '0x00...676', '0x00...231' ]
            },
        },
        Approval: {
            address: '0x3D5EB40665D25aAa4160023C4278FA6A94BA4aCb',
            blocknumber: 2331,
            transactionHash: '0x5b2232b68681f19d9b6fcd6fb03964ef105912fecb772c11c8ec9fc906be4cbf',
            transactionIndex: 0,
            blockHash: '0x3adec238e06a9e8d5fa09fc1e1d7c8748b64d07e89678d27e8a379a12a34974f',
            logIndex: 1,
            id: 'log_cee37d26',
            returnValues: {
                '0': '0x2f7Dc98Bd93A0544B03d6ff428a6f4ae04b32676',
                '1': '0x01958c62aB4aEC7fC282bEc9491dA0EF7F830AC2',
                '2': '0',
                owner: '0x2f7Dc98Bd93A0544B03d6ff428a6f4ae04b32676',
                spender: '0x01958c62aB4aEC7fC282bEc9491dA0EF7F830AC2',
                value: '0'
            },
            event: 'Approval',
            signature: '0x8c5be1e5ebec7d5bd14f71427d1e84f3dd0314c0f7b2291e5b200ac8c7c3b925',
            raw: {
                data: '0x0000000000000000000000000000000000000000000000000000000000000000',
                topics: [ '0x8c5be...', '0x00...676', '0x00...ac2' ]
            },
        },
    },
}

//스마트 컨트랙트 실행에 수수료 대납 트랜잭션 사용
> kip7.transferFrom('0x{address in hex}', '0x{address in hex}', 10000, {
    from: '0x{address in hex}'
    feeDelegation: true,
    feePayer: '0x{address in hex}'
}).then(console.log)

// kip7.options.from 사용
// kip7 인스턴스로 트랜잭션을 보낼 때 kip7.options.from 값이 정해져 있는 경우, 
// sendParam 객체에 `from`를 명시하지 않는 이상 kip7 인스턴스로 트랜잭션을 보낼 때 그 값을 사용
> kip7.options.from = '0x{address in hex}'
> kip7.transferFrom('0x{address in hex}', '0x{address in hex}', 10000).then(console.log)

kip7.safeTransferFrom

kip7.safeTransferFrom(sender, recipient, amount [, data] [, sendParam])

Safely transfers the given amount of the token from the token owner's balance to the recipient. The address who was approved to send the token owner's tokens is expected to execute this token transferring transaction. Thus, the approved one should be the sender of this transaction whose address must be given at sendParam.from or kip7.options.from. Without sendParam.from nor kip7.options.from being provided, an error would occur.

If the recipient was a contract address, it should implement IKIP7Receiver.onKIP7Received. Otherwise, the transfer is reverted.

Note that sending this transaction will charge the transaction fee to the transaction sender.

Parameters

NOTE The amount parameter accepts number type but if the fed value were out of the range capped by number.MAX_SAFE_INTEGER, it might cause an unexpected result or error. In this case, it is recommended to use the BigNumber type, especially for a uint256 sized numeric input value.

Return Value

Promise returns object - The receipt containing the result of the transaction execution. If you want to know about the properties inside the receipt object, see the description of getTransactionReceipt. Receipts from KIP17 instances have an 'events' attribute parsed via ABI instead of a 'logs' attribute.

Example

// 주어진 필드에서 sendParam 객체를 통해 전송 (데이터 없이)
> kip7.safeTransferFrom('0x{address in hex}', '0x{address in hex}', 10000, { from: '0x{address in hex}' }).then(console.log)
{
    blockHash: '0x0d641b9cebb032f10348288623898f8aa319faa0845c5b3b7a59ac397a6a218b',
    blocknumber: 2404,
    contractAddress: null,
    from: '0x090937f5c9b83d961da29149a3c37104bc5e71b3',
    ...
    status: true,
    to: '0xe4aeba6306b0df023aa4b765960fa59dbe925950',
    ...
    events: {
            Transfer: {
                    address: '0xe4AeBa6306b0Df023AA4b765960fA59dbE925950',
                    blocknumber: 2404,
                    transactionHash: '0xed8c33facaea963f57c268134aaab48fa765e7298fd70d4bc796b1e93c12ad45',
                    transactionIndex: 0,
                    blockHash: '0x0d641b9cebb032f10348288623898f8aa319faa0845c5b3b7a59ac397a6a218b',
                    logIndex: 0,
                    id: 'log_5eaef2c3',
                    returnValues: {
                            '0': '0xC2C84328845A36Fe0c4DcEf370d24ec80cF85221',
                            '1': '0x67B092d09B5e94fed58609777cc7Ac9193553B73',
                            '2': '10000',
                            from: '0xC2C84328845A36Fe0c4DcEf370d24ec80cF85221',
                            to: '0x67B092d09B5e94fed58609777cc7Ac9193553B73',
                            value: '10000',
                    },
                    event: 'Transfer',
                    signature: '0xddf252ad1be2c89b69c2b068fc378daa952ba7f163c4a11628f55a4df523b3ef',
                    raw: {
                            data: '0x0000000000000000000000000000000000000000000000000000000000002710',
                            topics: [ '0xddf25...', '0x00...221', '0x00...b73' ],
                    },
            },
            Approval: {
                    address: '0xe4AeBa6306b0Df023AA4b765960fA59dbE925950',
                    blocknumber: 2404,
                    transactionHash: '0xed8c33facaea963f57c268134aaab48fa765e7298fd70d4bc796b1e93c12ad45',
                    transactionIndex: 0,
                    blockHash: '0x0d641b9cebb032f10348288623898f8aa319faa0845c5b3b7a59ac397a6a218b',
                    logIndex: 1,
                    id: 'log_3f3aedf8',
                    returnValues: {
                            '0': '0xC2C84328845A36Fe0c4DcEf370d24ec80cF85221',
                            '1': '0x090937f5C9B83d961da29149a3C37104Bc5e71B3',
                            '2': '0',
                            owner: '0xC2C84328845A36Fe0c4DcEf370d24ec80cF85221',
                            spender: '0x090937f5C9B83d961da29149a3C37104Bc5e71B3',
                            value: '0',
                    },
                    event: 'Approval',
                    signature: '0x8c5be1e5ebec7d5bd14f71427d1e84f3dd0314c0f7b2291e5b200ac8c7c3b925',
                    raw: {
                            data: '0x0000000000000000000000000000000000000000000000000000000000000000',
                            topics: [ '0x8c5be...', '0x00...221', '0x00...1b3' ],
                    },
            },
    },
}

//스마트 컨트랙트 실행에 수수료 대납 트랜잭션 사용
> kip7.safeTransferFrom('0x{address in hex}', '0x{address in hex}', 10000, {
    from: '0x{address in hex}'
    feeDelegation: true,
    feePayer: '0x{address in hex}'
}).then(console.log)

// 주어진 from 필드에서 sendParam 객체를 통해 전송(데이터와 함께)
> kip7.safeTransfer('0x{address in hex}', 11, '0x1234', { from: '0x{address in hex}' }).then(console.log)

// kip7.options.from 사용
// kip7 인스턴스로 트랜잭션을 보낼 때 kip7.options.from 값이 정해져 있는 경우, 
// sendParam 객체에 `from`를 명시하지 않는 이상 kip7 인스턴스로 트랜잭션을 보낼 때 그 값을 사용
> kip7.options.from = '0x{address in hex}'
> kip7.safeTransferFrom('0x{address in hex}', '0x{address in hex}', 11).then(console.log)

kip7.mint

kip7.mint(account, amount [, sendParam])

amount만큼의 토큰을 만들어 account에게 발행합니다. 이 함수는 토큰 총 공급량을 증가시킵니다.

Note that this method will submit a transaction to the Klaytn network, which will charge the transaction fee to the sender.

Parameters

NOTE The amount parameter accepts number type but if the fed value were out of the range capped by number.MAX_SAFE_INTEGER, it might cause an unexpected result or error. In this case, it is recommended to use the BigNumber type, especially for a uint256 sized numeric input value.

참고 만약 sendParam.from 또는 kip7.options.from이 주어졌다면, 이 주소는 반드시 MinterRole를 가진 발행자이어야 합니다.

Return Value

Promise returns object - The receipt containing the result of the transaction execution. If you want to know about the properties inside the receipt object, see the description of getTransactionReceipt. Receipts from KIP7 instances have an 'events' attribute parsed via ABI instead of a 'logs' attribute.

Example

// 주어진 필드에서 sendParam 객체를 통해 전송
> kip7.mint('0x{address in hex}', 10000, { from: '0x{address in hex}' }).then(console.log)
{
    blockHash: '0x71e1c7c9de471ed9eb9ec2aca09beb63a654e21514b2b8d25ec93f34b810a709',
    blocknumber: 8466,
    contractAddress: null,
    from: '0x2f7dc98bd93a0544b03d6ff428a6f4ae04b32676',
    ...
    status: true,
    to: '0x54e9ad10ffcbcc2384863157c851a75a31c1e925',
    ...
    events: {
        Transfer: {
            address: '0x54e9Ad10FFcBCc2384863157c851A75a31C1E925',
            blocknumber: 8466,
            transactionHash: '0xef1db1544d0ba70aa06b77599a8421cee2270703cff7d0233bd09ab3561ab49a',
            transactionIndex: 0,
            blockHash: '0x71e1c7c9de471ed9eb9ec2aca09beb63a654e21514b2b8d25ec93f34b810a709',
            logIndex: 0,
            id: 'log_151f8e90',
            returnValues: {
                '0': '0x0000000000000000000000000000000000000000',
                '1': '0x4756D3c2A3DC61450D949BD9bF702b4209Fc15a0',
                '2': '10000',
                from: '0x0000000000000000000000000000000000000000',
                to: '0x4756D3c2A3DC61450D949BD9bF702b4209Fc15a0',
                value: '10000',
            },
            event: 'Transfer',
            signature: '0xddf252ad1be2c89b69c2b068fc378daa952ba7f163c4a11628f55a4df523b3ef',
            raw: {
                data: '0x0000000000000000000000000000000000000000000000000000000000002710',
                topics: [ '0xddf25...', '0x00...000', '0x00...5a0' ],
            },
        },
    },
}

//스마트 컨트랙트 실행에 수수료 대납 트랜잭션 사용
> kip7.mint('0x{address in hex}', 10000, {
    from: '0x{address in hex}'
    feeDelegation: true,
    feePayer: '0x{address in hex}'
}).then(console.log)

// kip7.options.from 사용
// kip7 인스턴스로 트랜잭션을 보낼 때 kip7.options.from 값이 정해져 있는 경우, 
// sendParam 객체에 `from`를 명시하지 않는 이상 kip7 인스턴스로 트랜잭션을 보낼 때 그 값을 사용
> kip7.options.from = '0x{address in hex}'
> kip7.mint('0x{address in hex}', 10000).then(console.log)

kip7.addMinter

kip7.addMinter(account [, sendParam])

Adds an account as a minter, who are permitted to mint tokens.

Note that this method will submit a transaction to the Klaytn network, which will charge the transaction fee to the sender.

Parameters

참고 만약 sendParam.from 또는 kip7.options.from이 주어졌다면, 이 주소는 반드시 발행자이어야 합니다.

Return Value

Promise returns object - The receipt containing the result of the transaction execution. If you want to know about the properties inside the receipt object, see the description of getTransactionReceipt. Receipts from KIP7 instances have an 'events' attribute parsed via ABI instead of a 'logs' attribute.

Example

// 주어진 필드에서 sendParam 객체를 통해 전송
> kip7.addMinter('0x{address in hex}', { from: '0x{address in hex}' }).then(console.log)
{
    blockHash: '0x169db7e80c954f7d95bbb6a5ef3065190e842d515485e1679f8f3027d1b2975f',
    blocknumber: 9593,
    contractAddress: null,
    from: '0x2f7dc98bd93a0544b03d6ff428a6f4ae04b32676',
    ...
    status: true,
    to: '0x9e2851aff794e69c58e112a3beacbf0de6587f6b',
    ...
    events: {
        MinterAdded: {
            address: '0x9E2851Aff794E69C58E112a3beacbF0De6587f6b',
            blocknumber: 9593,
            transactionHash: '0x11c86fe739ce3f8e6f93f5de87c9626c7cd032dd5e119171f9ec821292cd68e9',
            transactionIndex: 0,
            blockHash: '0x169db7e80c954f7d95bbb6a5ef3065190e842d515485e1679f8f3027d1b2975f',
            logIndex: 0,
            id: 'log_d93efbcd',
            returnValues: {
                '0': '0x823EA6Eb41985218D478C07E77cFBdAd233569C5',
                account: '0x823EA6Eb41985218D478C07E77cFBdAd233569C5',
            },
            event: 'MinterAdded',
            signature: '0x6ae172837ea30b801fbfcdd4108aa1d5bf8ff775444fd70256b44e6bf3dfc3f6',
            raw: {
                data: '0x',
                topics: [ '0x6ae17...', '0x00...9c5' ],
            },
        },
    },
}

//스마트 컨트랙트 실행에 수수료 대납 트랜잭션 사용
> kip7.addMinter('0x{address in hex}', {
    from: '0x{address in hex}'
    feeDelegation: true,
    feePayer: '0x{address in hex}'
}).then(console.log)

// kip7.options.from 사용
// kip7 인스턴스로 트랜잭션을 보낼 때 kip7.options.from 값이 정해져 있는 경우, 
// sendParam 객체에 `from`를 명시하지 않는 이상 kip7 인스턴스로 트랜잭션을 보낼 때 그 값을 사용
> kip7.options.from = '0x{address in hex}'
> kip7.addMinter('0x{address in hex}').then(console.log)

kip7.renounceMinter

kip7.renounceMinter([sendParam])

Renounces the right to mint tokens. Only a minter address can renounce the minting right.

Note that this method will submit a transaction to the Klaytn network, which will charge the transaction fee to the sender.

Parameters

NOTE If sendParam.from or kip7.options.from were given, it should be a minter with MinterRole.

Return Value

Promise returns object - The receipt containing the result of the transaction execution. If you want to know about the properties inside the receipt object, see the description of getTransactionReceipt. Receipts from KIP7 instances have an 'events' attribute parsed via ABI instead of a 'logs' attribute.

Example

// 주어진 필드에서 sendParam 객체를 통해 전송
> kip7.renounceMinter({ from: '0x{address in hex}' }).then(console.log)
{
    blockHash: '0xc1d96a519d9a31a1dab77111af0de73241aa212722859062a96dc3115a2eca23',
    blocknumber: 9996,
    contractAddress: null,
    from: '0x34b91db0f4c7d1381fdf054cc3d0c433b19fca16',
    ...
    status: true,
    to: '0xeba808dcd0fdbfc21a99961be42665f351487f52',
    ...
    events: {
        MinterRemoved: {
            address: '0xebA808dCD0Fdbfc21a99961BE42665f351487F52',
            blocknumber: 9996,
            transactionHash: '0x52328e3cfb8061915d000dc308ffd67650fa36cf4560f1fb12fdb28a7c903ac9',
            transactionIndex: 0,