UnpackProofFile

UnpackProofFile unpacks a proof file into a list of the individual raw proofs in the proof chain.

Source: taprootassets.proto

gRPC

rpc UnpackProofFile (UnpackProofFileRequest) returns (UnpackProofFileResponse);

REST

HTTP Method	Path
POST	/v1/taproot-assets/proofs/unpack-file

Code Samples

gRPC

Javascript

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('taprootassets.proto', loaderOptions);
const taprpc = grpc.loadPackageDefinition(packageDefinition).taprpc;
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 taprpc.TaprootAssets(GRPC_HOST, creds);
let request = {
  raw_proof_file: <bytes>,
};
client.unpackProofFile(request, function(err, response) {
  console.log(response);
});
// Console output:
//  {
//    "raw_proofs": <bytes>,
//  }

Python

import codecs, grpc, os
# Generate the following 2 modules by compiling the taprootassets.proto with the grpcio-tools.
# See https://github.com/lightningnetwork/lnd/blob/master/docs/grpc/python.md for instructions.
import taprootassets_pb2 as taprpc, taprootassets_pb2_grpc as taprootassetsstub

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

# create macaroon credentials
macaroon = codecs.encode(open(MACAROON_PATH, 'rb').read(), 'hex')
def metadata_callback(context, callback):
  callback([('macaroon', macaroon)], None)
auth_creds = grpc.metadata_call_credentials(metadata_callback)
# create SSL credentials
os.environ['GRPC_SSL_CIPHER_SUITES'] = 'HIGH+ECDSA'
cert = open(TLS_PATH, 'rb').read()
ssl_creds = grpc.ssl_channel_credentials(cert)
# combine macaroon and SSL credentials
combined_creds = grpc.composite_channel_credentials(ssl_creds, auth_creds)
# make the request
channel = grpc.secure_channel(GRPC_HOST, combined_creds)
stub = taprootassetsstub.TaprootAssetsStub(channel)
request = taprpc.UnpackProofFileRequest(
  raw_proof_file=<bytes>,
)
response = stub.UnpackProofFile(request)
print(response)
# {
#    "raw_proofs": <bytes>,
# }

REST

Javascript

const fs = require('fs');
const request = require('request');

const REST_HOST = 'localhost:8089'
const MACAROON_PATH = 'TAPROOT-ASSETS_DIR/regtest/taproot-assets.macaroon'

let requestBody = {
  raw_proof_file: <string>, // <bytes> (base64 encoded)
};
let options = {
  url: `https://${REST_HOST}/v1/taproot-assets/proofs/unpack-file`,
  // Work-around for self-signed certificates.
  rejectUnauthorized: false,
  json: true,
  headers: {
    'Grpc-Metadata-macaroon': fs.readFileSync(MACAROON_PATH).toString('hex'),
  },
  form: JSON.stringify(requestBody),
}
request.post(options, function(error, response, body) {
  console.log(body);
});
// Console output:
//  {
//    "raw_proofs": <array>, // <bytes> 
//  }

Python

import base64, codecs, json, requests

REST_HOST = 'localhost:8089'
MACAROON_PATH = 'TAPROOT-ASSETS_DIR/regtest/taproot-assets.macaroon'
TLS_PATH = 'TAPROOT-ASSETS_DIR/tls.cert'

url = f'https://{REST_HOST}/v1/taproot-assets/proofs/unpack-file'
macaroon = codecs.encode(open(MACAROON_PATH, 'rb').read(), 'hex')
headers = {'Grpc-Metadata-macaroon': macaroon}
data = {
  'raw_proof_file': base64.b64encode(<bytes>),
}
r = requests.post(url, headers=headers, data=json.dumps(data), verify=TLS_PATH)
print(r.json())
# {
#    "raw_proofs": <bytes>,
# }

Shell

$ tapcli proofs unpack --help

NAME:
   tapcli proofs unpack - unpack a Taproot Asset proof file into individual raw proofs

USAGE:
   tapcli proofs unpack [command options] [arguments...]

DESCRIPTION:
   
  Unpacks a taproot asset proof file that contains the full provenance of
  an asset into its individual raw proofs, in the order they appear in the
  proof file.


OPTIONS:
   --proof_file value  the path to the proof file on disk; use the dash character (-) to read from stdin instead
   

Messages

taprpc.UnpackProofFileRequest

Source: taprootassets.proto

Field	gRPC Type	REST Type	REST Placement
raw_proof_file The raw proof file encoded as bytes. Must be a file and not just an individual mint/transfer proof.	bytes	string	body

taprpc.UnpackProofFileResponse

Source: taprootassets.proto

Field	gRPC Type	REST Type
raw_proofs The individual proofs contained in the proof file, ordered by their appearance within the file (issuance proof first, last known transfer last).	bytes[]	array