ListBatches

ListBatches lists the set of batches submitted to the daemon, including pending and cancelled batches.

Source: mintrpc/mint.proto

gRPC

rpc ListBatches (ListBatchRequest) returns (ListBatchResponse);

REST

HTTP Method	Path
GET	/v1/taproot-assets/assets/mint/batches/{batch_key}

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('mintrpc/mint.proto', loaderOptions);
const mintrpc = grpc.loadPackageDefinition(packageDefinition).mintrpc;
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 mintrpc.Mint(GRPC_HOST, creds);
let request = {
  batch_key: <bytes>,
  batch_key_str: <string>,
  verbose: <bool>,
};
client.listBatches(request, function(err, response) {
  console.log(response);
});
// Console output:
//  {
//    "batches": <VerboseBatch>,
//  }

Python

import codecs, grpc, os
# Generate the following 2 modules by compiling the mintrpc/mint.proto with the grpcio-tools.
# See https://github.com/lightningnetwork/lnd/blob/master/docs/grpc/python.md for instructions.
import mint_pb2 as mintrpc, mint_pb2_grpc as mintstub

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 = mintstub.MintStub(channel)
request = mintrpc.ListBatchRequest(
  batch_key=<bytes>,
  batch_key_str=<string>,
  verbose=<bool>,
)
response = stub.ListBatches(request)
print(response)
# {
#    "batches": <VerboseBatch>,
# }

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 options = {
  url: `https://${REST_HOST}/v1/taproot-assets/assets/mint/batches/{batch_key}`,
  // Work-around for self-signed certificates.
  rejectUnauthorized: false,
  json: true,
  headers: {
    'Grpc-Metadata-macaroon': fs.readFileSync(MACAROON_PATH).toString('hex'),
  },
}
request.get(options, function(error, response, body) {
  console.log(body);
});
// Console output:
//  {
//    "batches": <array>, // <VerboseBatch> 
//  }

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/assets/mint/batches/{batch_key}'
macaroon = codecs.encode(open(MACAROON_PATH, 'rb').read(), 'hex')
headers = {'Grpc-Metadata-macaroon': macaroon}
r = requests.get(url, headers=headers, verify=TLS_PATH)
print(r.json())
# {
#    "batches": <VerboseBatch>,
# }

Shell

$ tapcli assets mint batches --help

NAME:
   tapcli assets mint batches - list all batches

USAGE:
   tapcli assets mint batches [command options] [arguments...]

DESCRIPTION:
   List all batches

OPTIONS:
   --batch_key value  if set, the batch key for a specific batch
   

Messages

mintrpc.ListBatchRequest

Source: mintrpc/mint.proto

Field	gRPC Type	REST Type	REST Placement
batch_key The optional batch key of the batch to list, specified as raw bytes (gRPC only).	bytes	string	path
batch_key_str The optional batch key of the batch to list, specified as a hex encoded string (use this for REST).	string	string	query
verbose If true, pending asset group information will be shown for the pending batch.	bool	boolean	query

mintrpc.ListBatchResponse

Source: mintrpc/mint.proto

Field	gRPC Type	REST Type
batches	VerboseBatch[]	array

Nested Messages

mintrpc.MintingBatch

Field	gRPC Type	REST Type
batch_key A public key serialized in compressed format that can be used to uniquely identify a pending minting batch. Responses that share the same key will be batched into the same minting transaction.	bytes	string
batch_txid The transaction ID of the batch. Only populated if the batch has been committed.	string	string
state The state of the batch.	BatchState	string
assets The assets that are part of the batch.	PendingAsset[]	array
created_at The time the batch was created as a Unix timestamp (in seconds).	int64	string
height_hint The current height of the block chain at the time of the batch creation.	uint32	integer
batch_psbt The genesis transaction as a PSBT packet. Only populated if the batch has been committed.	bytes	string

mintrpc.PendingAsset

Field	gRPC Type	REST Type
asset_version The version of asset to mint.	AssetVersion	string
asset_type The type of the asset to be created.	AssetType	string
name The name, or "tag" of the asset. This will affect the final asset ID.	string	string
asset_meta A blob that resents metadata related to the asset. This will affect the final asset ID.	AssetMeta	object
amount The total amount of units of the new asset that should be created. If the AssetType is Collectible, then this field cannot be set.	uint64	string
new_grouped_asset If true, then the asset will be created with a new group key, which allows for future asset issuance.	bool	boolean
group_key The specific existing group key this asset should be minted with.	bytes	string
group_anchor The name of the asset in the batch that will anchor a new asset group. This asset will be minted with the same group key as the anchor asset.	string	string
group_internal_key The optional key that will be used as the internal key for an asset group created with this asset.	KeyDescriptor	object
group_tapscript_root The optional root of a tapscript tree that will be used when constructing a new asset group key. This enables future issuance authorized with a script witness.	bytes	string
script_key The optional script key to use for the new asset. If no script key is given, a BIP-86 key will be derived from the underlying wallet.	ScriptKey	object

mintrpc.UnsealedAsset

Field	gRPC Type	REST Type
asset The pending asset with an unsealed asset group.	PendingAsset	object
group_key_request The group key request for the asset.	GroupKeyRequest	object
group_virtual_tx The group virtual transaction for the asset.	GroupVirtualTx	object

mintrpc.VerboseBatch

Field	gRPC Type	REST Type
batch The minting batch, without any assets.	MintingBatch	object
unsealed_assets The assets that are part of the batch.	UnsealedAsset[]	array

taprpc.AssetMeta

Field	gRPC Type	REST Type
data The raw data of the asset meta data. Based on the type below, this may be structured data such as a text file or PDF. The size of the data is limited to 1MiB.	bytes	string
type The type of the asset meta data.	AssetMetaType	string
meta_hash The hash of the meta. This is the hash of the TLV serialization of the meta itself.	bytes	string

taprpc.GenesisInfo

Field	gRPC Type	REST Type
genesis_point The first outpoint of the transaction that created the asset (txid:vout).	string	string
name The name of the asset.	string	string
meta_hash The hash of the meta data for this genesis asset.	bytes	string
asset_id The asset ID that uniquely identifies the asset.	bytes	string
asset_type The type of the asset.	AssetType	string
output_index The index of the output that carries the unique Taproot Asset commitment in the genesis transaction.	uint32	integer

taprpc.GroupKeyRequest

Field	gRPC Type	REST Type
raw_key The internal key for the asset group before any tweaks have been applied.	KeyDescriptor	object
anchor_genesis The genesis of the group anchor asset, which is used to derive the single tweak for the group key. For a new group key, this will be the genesis of new_asset.	GenesisInfo	object
tapscript_root The optional root of a tapscript tree that will be used when constructing a new asset group key. This enables future issuance authorized with a script witness.	bytes	string
new_asset The serialized asset which we are requesting group membership for. A successful request will produce a witness that authorizes this asset to be a member of this asset group.	bytes	string

taprpc.GroupVirtualTx

Field	gRPC Type	REST Type
transaction The virtual transaction that represents the genesis state transition of a grouped asset.	bytes	string
prev_out The transaction output that represents a grouped asset. The tweaked group key is set as the PkScript of this output. This is used in combination with Tx to produce an asset group witness.	TxOut	object
genesis_id The asset ID of the grouped asset in a GroupKeyRequest. This ID is needed to construct a sign descriptor, as it is the single tweak for the group internal key.	bytes	string
tweaked_key The tweaked group key for a specific GroupKeyRequest. This is used to construct a complete group key after producing an asset group witness.	bytes	string

taprpc.KeyDescriptor

Field	gRPC Type	REST Type
raw_key_bytes The raw bytes of the key being identified.	bytes	string
key_loc The key locator that identifies which key to use for signing.	KeyLocator	object

taprpc.KeyLocator

Field	gRPC Type	REST Type
key_family The family of key being identified.	int32	integer
key_index The precise index of the key being identified.	int32	integer

taprpc.ScriptKey

Field	gRPC Type	REST Type
pub_key The full Taproot output key the asset is locked to. This is either a BIP-86 key if the tap_tweak below is empty, or a key with the tap tweak applied to it.	bytes	string
key_desc The key descriptor describing the internal key of the above Taproot key.	KeyDescriptor	object
tap_tweak The optional Taproot tweak to apply to the above internal key. If this is empty then a BIP-86 style tweak is applied to the internal key.	bytes	string

taprpc.TxOut

Field	gRPC Type	REST Type
value The value of the output being spent.	int64	string
pk_script The script of the output being spent.	bytes	string

Enums

mintrpc.BatchState

Name	Number
BATCH_STATE_UNKNOWN	0
BATCH_STATE_PENDING	1
BATCH_STATE_FROZEN	2
BATCH_STATE_COMMITTED	3
BATCH_STATE_BROADCAST	4
BATCH_STATE_CONFIRMED	5
BATCH_STATE_FINALIZED	6
BATCH_STATE_SEEDLING_CANCELLED	7
BATCH_STATE_SPROUT_CANCELLED	8

taprpc.AssetMetaType

Name	Number
META_TYPE_OPAQUE Opaque is used for asset meta blobs that have no true structure and instead should be interpreted as opaque blobs.	0
META_TYPE_JSON JSON is used for asset meta blobs that are to be interpreted as valid JSON strings.	1

taprpc.AssetType

Name	Number
NORMAL Indicates that an asset is capable of being split/merged, with each of the units being fungible, even across a key asset ID boundary (assuming the key group is the same).	0
COLLECTIBLE Indicates that an asset is a collectible, meaning that each of the other items under the same key group are not fully fungible with each other. Collectibles also cannot be split or merged.	1

taprpc.AssetVersion

Name	Number
ASSET_VERSION_V0 ASSET_VERSION_V0 is the default asset version. This version will include the witness vector in the leaf for a tap commitment.	0
ASSET_VERSION_V1 ASSET_VERSION_V1 is the asset version that leaves out the witness vector from the MS-SMT leaf encoding.	1