ERC20 Token
Token ERC20 APIs.
erc20_getBalance
Return an address Token balance.
Parameters
Name | Type | Description |
---|---|---|
contractAddress | String | Contract address of token. |
address | String | Address |
Return Value
Name | Type | Description |
---|---|---|
balance | BigDecimal | Token balance of address. |
Example
erc20_mint
Add token issuance. Only the token owner can do this. (There are tokens for which the mint function is not provided according to the contract.)
Parameters
Name | Type | Description |
---|---|---|
contractAddress | String | Contract address of token |
sender | String | Sender Address (It's must be owner) |
amount | BigDecimal | Mint amount of token. |
tempKey | String | tempKey for "mint" |
hashKey | String | hash(tempKey | secretKey) |
signature | String | sign( hash( contractAddress | owner | amount | tempKey | hashKey ) ) by sender's privateKey using signData API |
gasPrice | BigDecimal | gasPrice |
nonce | BIgInteger | nonce value. If it is null, it will be filled in automatically. If acceleration is needed, use the nonce value generated when performing the transaction and use a higher gasPrice than the previous transaction. |
Return Value
Name | Type | Description |
---|---|---|
transactionId | String | Transaction Id |
nonce | BigInteger | nonce Value |
A transactionId is returned, but that doesn't mean it has been added to the Block yet. You should check that the status is 1 by using net_getTransactionStatus.
Example
erc20_burn
Burn the initial supply of token. Only the token owner can do this.
Parameters
Name | Type | Description |
---|---|---|
contractAddress | String | Contract address of token |
sender | String | Sender Address (It's must be owner) |
amount | BigDecimal | Burn amount of token. |
tempKey | String | tempKey for "burn" |
hashKey | String | hash(tempKey | secretKey) |
signature | String | sign( hash( contractAddress | owner | amount | tempKey | hashKey ) ) by sender's privateKey using signData API |
gasPrice | BigDecimal | gasPrice |
nonce | BigInteger | nonce value. If it is null, it will be filled in automatically. If acceleration is needed, use the nonce value generated when performing the transaction and use a higher gasPrice than the previous transaction. |
Return Value
Name | Type | Description |
---|---|---|
transactionId | String | Transaction Id |
nonce | BigInteger | nonce value |
A transactionId is returned, but that doesn't mean it has been added to the Block yet. You should check that the status is 1 by using net_getTransactionStatus.
Example
erc20_transfer
Transfer Token from from-address to to-address.
Parameters
Name | Type | Description |
---|---|---|
contractAddress | String | Contract address of token |
sender | String | Sender address |
toAddress | String | To address |
amount | BigDecimal | Transfer amount. |
tempKey | String | tempKey for "transfer" |
hashKey | String | hash(tempKey | fromAddress' secretKey) |
signature | String | sign( hash( contractAddress | sender | toAddress | amount | tempKey | hashKey ) ) by sender's privateKey using signData API |
gasPrice | BigDecimal | gasPrice |
nonce | BigInteger | nonce value. If it is null, it will be filled in automatically. If acceleration is needed, use the nonce value generated when performing the transaction and use a higher gasPrice than the previous transaction. |
Return Value
Name | Type | Description |
---|---|---|
transactionId | String | Transaction Id |
nonce | BigInteger | nonce value |
A transactionId is returned, but that doesn't mean it has been added to the Block yet. You should check that the status is 1 by using net_getTransactionStatus.
Example
erc20_transferFrom
Transfer Token from from-address to to-address by spender.
Parameters
Name | Type | Description |
---|---|---|
contractAddress | String | Contract address of token |
sender | String | Sender address (spender) |
fromAddress | String | From address |
toAddress | String | To address |
amount | BigDecimal | Transfer amount. |
tempKey | String | tempKey for "transfer" |
hashKey | String | hash(tempKey | fromAddress' secretKey) |
signature | String | sign( hash( contractAddress | sender | fromAddress | toAddress | amount | tempKey | hashKey ) ) by sender's privateKey using signData API |
gasPrice | BigDecimal | gasPrice |
nonce | BigInteger | nonce value. If it is null, it will be filled in automatically. If acceleration is needed, use the nonce value generated when performing the transaction and use a higher gasPrice than the previous transaction. |
Return Value
Name | Type | Description |
---|---|---|
transactionId | String | Transaction Id |
nonce | BigInteger | nonce value |
A transactionId is returned, but that doesn't mean it has been added to the Block yet. You should check that the status is 1 by using net_getTransactionStatus.
Example
erc20_approve
Approve Token from owner-address to spender-address.
Parameters
Name | Type | Description |
---|---|---|
contractAddress | String | Contract address of token |
sender | String | Sender address |
spender | String | Spender address |
amount | BigDecimal | Approve amount. |
tempKey | String | tempKey for "approve" |
hashKey | String | hash(tempKey | fromAddress' secretKey) |
signature | String | sign( hash ( contractAddress | sender | spender | amount | tempKey | hashKey ) ) by sender's privateKey using signData API |
gasPrice | BigDecimal | gasPrice |
nonce | BingInteger | nonce value. If it is null, it will be filled in automatically. If acceleration is needed, use the nonce value generated when performing the transaction and use a higher gasPrice than the previous transaction. |
Return Value
Name | Type | Description |
---|---|---|
transactionId | String | Transaction Id |
nonce | BigInteger | nonce value |
A transactionId is returned, but that doesn't mean it has been added to the Block yet. You should check that the status is 1 by using net_getTransactionStatus.
Example
erc20_getAllowance
Returns an allowed Token amount from owner address to to spender address.
Parameters
Name | Type | Description |
---|---|---|
contractAddress | String | Contract address of token. |
sender | String | Allower address |
spender | String | Spender address |
Return Value
Name | Type | Description |
---|---|---|
amount | BigDecimal | Allowed Token amount. |
Example
Last updated