TrustSet

Create or modify a trust line linking two accounts.

[Source]

Example

{
    "TransactionType": "TrustSet",
    "Account": "ra5nK24KXen9AHvsdFTKHSANinZseWnPcX",
    "Fee": "12",
    "Flags": 262144,
    "LastLedgerSequence": 8007750,
    "LimitAmount": {
      "currency": "USD",
      "issuer": "rsP3mgGb2tcYUrxiLFiHJiQXhsziegtwBc",
      "value": "100"
    },
    "Sequence": 12
}

Field	JSON Type	[Internal Type][]	Description
LimitAmount	Object	Amount	Object defining the trust line to create or modify, in the format of a [Currency Amount][].
LimitAmount.currency	String	(Amount.currency)	The currency to this trust line applies to, as a three-letter ISO 4217 Currency Code or a 160-bit hex value according to currency format. "XAH" is invalid.
LimitAmount.value	String	(Amount.value)	Quoted decimal representation of the limit to set on this trust line.
LimitAmount.issuer	String	(Amount.issuer)	The address of the account to extend trust to.
QualityIn	Number	UInt32	(Optional) Value incoming balances on this trust line at the ratio of this number per 1,000,000,000 units. A value of 0 is shorthand for treating balances at face value.
QualityOut	Number	UInt32	(Optional) Value outgoing balances on this trust line at the ratio of this number per 1,000,000,000 units. A value of 0 is shorthand for treating balances at face value.

If the account specified in LimitAmount.issuer is blocking incoming trust lines, the transaction fails with the result code tecNO_PERMISSION. (Requires the [DisallowIncoming amendment][] :not_enabled:)

TrustSet Flags

Transactions of the TrustSet type support additional values in the Flags field, as follows:

Flag Name	Hex Value	Decimal Value	Description
tfSetfAuth	0x00010000	65536	Authorize the other party to hold currency issued by this account. (No effect unless using the asfRequireAuth AccountSet flag.) Cannot be unset.
tfSetNoRipple	0x00020000	131072	Enable the No Ripple flag, which blocks rippling between two trust lines of the same currency if this flag is enabled on both.
tfClearNoRipple	0x00040000	262144	Disable the No Ripple flag, allowing rippling on this trust line.
tfSetFreeze	0x00100000	1048576	Freeze the trust line.
tfClearFreeze	0x00200000	2097152	Unfreeze the trust line.

If a transaction tries to enable No Ripple but cannot, it fails with the result code tecNO_PERMISSION. Before the [fix1578 amendment][] became enabled, such a transaction would result in tesSUCCESS (making any other changes it could) instead.

The Auth flag of a trust line does not determine whether the trust line counts towards its owner's XAH reserve requirement. However, an enabled Auth flag prevents the trust line from being in its default state. An authorized trust line can never be deleted. An issuer can pre-authorize a trust line with the tfSetfAuth flag only, even if the limit and balance of the trust line are 0.