build
suspend fun buildSourceAccountAuthPayloadHash(entry: SorobanAuthorizationEntryXdr, nonce: Int64Xdr, expirationLedger: UInt, networkPassphrase: String): ByteArray
Builds the authorization payload hash for source_account credentials.
This is used when converting source_account credentials to Address credentials, typically for relayer fee sponsoring. The payload is constructed similarly to buildAuthPayloadHash but uses the provided nonce and expiration since there are no existing credentials yet.
The payload is constructed as:
HashIdPreimage::SorobanAuthorization {
networkId: SHA256(networkPassphrase as UTF-8),
nonce: provided nonce,
signatureExpirationLedger: expirationLedger,
invocation: entry.rootInvocation
}
hash = SHA256(XDR_encode(payload))Content copied to clipboard
Return
The 32-byte SHA-256 hash of the authorization payload
Parameters
entry
The authorization entry with source_account credentials
nonce
The nonce to use for the new Address credentials
expiration
The ledger number at which the signature expires
network
The network passphrase
Throws
if XDR encoding fails