func setAccountId(addressOrSeed string, aid *xdr.AccountId) error {
kp, err := keypair.Parse(addressOrSeed)
if err != nil {
return err
}
if aid == nil {
return errors.New("aid is nil in setAccountId")
}
return aid.SetAddress(kp.Address())
}
// MutateTransactionEnvelope adds a signature to the provided envelope
func (m Sign) MutateTransactionEnvelope(txe *TransactionEnvelopeBuilder) error {
hash, err := txe.child.Hash()
if err != nil {
return err
}
kp, err := keypair.Parse(m.Seed)
if err != nil {
return err
}
sig, err := kp.SignDecorated(hash[:])
if err != nil {
return err
}
txe.E.Signatures = append(txe.E.Signatures, sig)
return nil
}