Transaction Signing

Once you have created a PSET now you need to add some signatures to it. This is done by the Signer, however the signer might be isolated, so we need some mechanisms to allow the signer to understand what is signing.

Get the PSET details

This is done with Wollet::get_details(), which returns:

• missing signatures and the respective signers' fingerprints
• net balance, the effect that transaction has on wallet (e.g. how much funds are sent out of the wallet)

If the Signer fingeprint is included in the missing signatures, then a Signer with that fingeprint expected to sign.

The balance can be shown to the user or validated against the Signer expectations.

It's worth noticing that Wollets can work without internet, so offline Signers can have Wollets instance to enhance the validation performed before signing.

let details = wollet.get_details(&pset)?;

const details = wollet.psetDetails(pset);

Sign the PSET

Once you have performed enough validation, you can call Signer::sign. Which adds signatures from Signer to the PSET.

Once the PSET has enough signatures, you can broadcast to the Liquid Network.

let sigs_added = signer.sign(&mut pset)?;
assert_eq!(sigs_added, 1);

pset = signer.sign(pset)

Next: Broadcast a Transaction