SignPSBTInput

Synopsis

Declared in <psbt.h>

[[nodiscard]]
util::Expected<void, common::PSBTError>
SignPSBTInput(
    SigningProvider const& provider,
    PartiallySignedTransaction& psbt,
    int index,
    PrecomputedTransactionData const* txdata,
    common::PSBTFillOptions const& options,
    SignatureData* out_sigdata = nullptr);

Description

txdata should be the output of PrecomputePSBTData (which can be shared across multiple SignPSBTInput calls). If it is nullptr, a dummy signature will be created.

Return Value

Success, or a PSBTError describing why signing failed.

NOTE

The return value should not be discarded.

Parameters

Name	Description
provider	The source of keys and scripts used to sign.
psbt	The PSBT containing the input.
index	The index of the input to sign.
txdata	Precomputed transaction data, or nullptr for a dummy signature.
options	Options controlling how fields are filled.
out_sigdata	Optional output receiving the resulting signature data.