walletprocesspsbt ( RPC)

walletprocesspsbt "psbt" ( sign "sighashtype" bip32derivs )

Update a PSBT with input information from our wallet and then sign inputs
that we can sign for.
Requires wallet passphrase to be set with walletpassphrase call if wallet is encrypted.

1. psbt           (string, required) The transaction base64 string
2. sign           (boolean, optional, default=true) Also sign the transaction when updating
3. sighashtype    (string, optional, default=ALL) The signature hash type to sign with if not specified by the PSBT. Must be one of
4. bip32derivs    (boolean, optional, default=true) Include BIP 32 derivation paths for public keys if we know them

{                             (json object)
  "psbt" : "str",             (string) The base64-encoded partially signed transaction
  "complete" : true|false     (boolean) If the transaction has a complete set of signatures

> elements-cli walletprocesspsbt "psbt"