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SignVirtualPsbt

SignVirtualPsbt signs the inputs of a virtual transaction and prepares the commitments of the inputs and outputs.

Source: assetwalletrpc/assetwallet.proto

gRPC

rpc SignVirtualPsbt (SignVirtualPsbtRequest) returns (SignVirtualPsbtResponse);

REST

HTTP MethodPath
POST /v1/taproot-assets/wallet/virtual-psbt/sign

Code Samples

const fs = require('fs');
const grpc = require('@grpc/grpc-js');
const protoLoader = require('@grpc/proto-loader');

const GRPC_HOST = 'localhost:10029'
const MACAROON_PATH = 'TAPROOT-ASSETS_DIR/regtest/taproot-assets.macaroon'
const TLS_PATH = 'TAPROOT-ASSETS_DIR/tls.cert'

const loaderOptions = {
keepCase: true,
longs: String,
enums: String,
defaults: true,
oneofs: true,
};
const packageDefinition = protoLoader.loadSync('assetwalletrpc/assetwallet.proto', loaderOptions);
const assetwalletrpc = grpc.loadPackageDefinition(packageDefinition).assetwalletrpc;
process.env.GRPC_SSL_CIPHER_SUITES = 'HIGH+ECDSA';
const tlsCert = fs.readFileSync(TLS_PATH);
const sslCreds = grpc.credentials.createSsl(tlsCert);
const macaroon = fs.readFileSync(MACAROON_PATH).toString('hex');
const macaroonCreds = grpc.credentials.createFromMetadataGenerator(function(args, callback) {
let metadata = new grpc.Metadata();
metadata.add('macaroon', macaroon);
callback(null, metadata);
});
let creds = grpc.credentials.combineChannelCredentials(sslCreds, macaroonCreds);
let client = new assetwalletrpc.AssetWallet(GRPC_HOST, creds);
let request = {
funded_psbt: <bytes>,
};
client.signVirtualPsbt(request, function(err, response) {
console.log(response);
});
// Console output:
// {
// "signed_psbt": <bytes>,
// "signed_inputs": <uint32>,
// }

Messages

assetwalletrpc.SignVirtualPsbtRequest

Source: assetwalletrpc/assetwallet.proto

FieldgRPC TypeREST TypeREST Placement
funded_psbt
bytesstringbody

assetwalletrpc.SignVirtualPsbtResponse

Source: assetwalletrpc/assetwallet.proto

FieldgRPC TypeREST Type
signed_psbt
bytesstring
signed_inputs
uint32[]array