Access Chronik Indexer via browser or Node.
npm install chronik-client
yarn add chronik-client
import { ChronikClient } from 'chronik-client';
const chronik = new ChronikClient([
'https://yourFirstChronikServerUrl.com',
'https://yourSecondChronikServerUrl.com',
'https://yourThirdChronikServerUrl.com',
]);
// If the first url is non-responsive it will cycle through the rest of the array.
// Get Genesis block:
const block = await chronik.block(
'000000000019d6689c085ae165831e934ff763ae46a2a6c172b3f1b60a8ce26f',
);
// Get the first 11 blocks of the chain:
const blocks = await chronik.blocks(0, 10);
// Get SLP tx details:
const tx = await chronik.tx(
'0f3c3908a2ddec8dea91d2fe1f77295bbbb158af869bff345d44ae800f0a5498',
);
// Get token details for a given token ID
const tokenDetails = await chronik.token(
'0daf200e3418f2df1158efef36fbb507f12928f1fdcf3543703e64e75a4a9073',
);
const GENESIS_PK =
'04678afdb0fe5548271967f1a67130b7105cd6a828e03909a67962e0ea1f61deb649f6bc' +
'3f4cef38c4f35504e51ec112de5c384df7ba0b8d578a4c702b6bf11d5f';
// Get first page of tx history of the Genesis pubkey, most recent first:
const history = await chronik
.script('p2pk', GENESIS_PK)
.history(/*page=*/ 0, /*page_size=*/ 10);
// Get all UTXOs of the Genesis pubkey:
const utxos = await chronik.script('p2pk', GENESIS_PK).utxos();
// Listen to updates on scripts:
const ws = chronik.ws({
onMessage: msg => {
console.log('Got update: ', msg);
},
onReconnect: e => {
// Fired before a reconnect attempt is made:
console.log('Reconnecting websocket, disconnection cause: ', e);
},
// Optional: ping the ws every 30s to reduce disconnects
keepAlive: true,
});
// Wait for WS to be connected:
await ws.waitForOpen();
// Subscribe to blocks
ws.subscribeToBlocks();
// Subscribe to scripts:
ws.subscribeToScript('p2pkh', 'b8ae1c47effb58f72f7bca819fe7fc252f9e852e');
// Unsubscribe:
ws.unsubscribeFromScript('p2pkh', 'b8ae1c47effb58f72f7bca819fe7fc252f9e852e');
// You may also subscribe to addresses, tokenIds, lokadIds, and plugins. See integration tests.
- 0.10.1 - Deprecate client-side ping keepAlive. Server-side is now available.
- 0.11.0 - Add support for
chronikInfo()
method toChronikClientNode
- 0.11.1 - Do not try next server if error is unrelated to server failure
- 0.12.0 - Add support for
block(hashOrHeight)
andblocks(startHeight, endHeight)
methods toChronikClientNode
- 0.13.0 - Add support for
blockTxs(hashOrHeight, page, pageSize)
andtx(txid)
methods toChronikClientNode
- 0.14.0 - Add support for
rawTx(txid)
method toChronikClientNode
- 0.15.0 - Add support for
script
endpointshistory()
andutxos()
toChronikClientNode
- 0.16.0 - Add support for
broadcastTx
andbroadcastTxs
endpoints toChronikClientNode
- 0.17.0 - Add support for token proto to endpoints that return
Tx_InNode
toChronikClientNode
- 0.18.0 - Add support for websocket connections to
ChronikClientNode
- 0.19.0 - Add support for token data in tx inputs and outputs to
ChronikClientNode
- 0.20.0 - Add support for calling script endpoints by address to
ChronikClientNode
- 0.21.0 - Skipped as accidentally published 0.22.0 before diff approval at 0.21.1-rc.1
- 0.22.0 - Add support for
tokenId
endpoints and token data in utxos toChronikClientNode
- 0.22.1 - Return
script
key for utxos fetched fromtokenId
endpoint - 0.23.0 - Add support for returning
TokenInfo
fromchronik.token(tokenId)
calls toChronikClientNode
- 0.24.0 - Support
subscribeToAddress
andunsubscribeFromAddress
methods in theChronikClientNode
websocket - 0.25.0 - Organize websocket subscriptions for
ChronikClientNode
under object instead of array - 0.25.1 - Move
ecashaddrjs
from dev dependency to dependency - 0.25.2 - Fix this package to work in the browser without requiring
Buffer
shim - 0.26.0 - Add
confirmedTxs
andunconfirmedTxs
toscript
endpoint - 0.26.1 - If websocket takes longer than 5s to connect, try the next ws
- 0.26.2 - Return type
number
fortimeFirstSeen
fromchronik.token()
endpoint inChronikClientNode
- 0.27.0 - Support for
lokadId
endpoints and websocket subscriptions - 0.28.0 - Support for websocket subscriptions by
tokenID
- 0.28.1 - Upgrading dependencies D16375
- 0.28.2 - Improve failoverProxy to switch servers on error state D16584
- 0.29.0 - Support for
plugins
endpoints:utxos
andgroups
D16605 - 1.0.0 - (Breaking change) Deprecate NNG chronik and rename all
InNode
classes and types D16627. Users may no longer importChronikClientNode
class to run in-node chronik-client and must importChronikClient
(which is no longer the NNG class). D16710 - 1.1.0 - Support websocket subscriptions to plugins D16783
- 1.2.0 - Support
history
,confirmedTxs
, andunconfirmedTxs
methods forplugins
endpoints D16786 - 1.3.0 - Support an avalanche invalidated websocket block message type and return extra block data for disconnected and avalanche invalidated blocks D16812
- 1.3.1 - Install
ecashaddrjs
from npm before publishing to remove manual peer dependency D16815