Celereum Documentation

// Get current block height
const response = await fetch('https://api.celereum.com:8443/rpc', {
  method: 'POST',
  headers: { 'Content-Type': 'application/json' },
  body: JSON.stringify({
    jsonrpc: '2.0',
    id: 1,
    method: 'cel_getLatestBlock',
    params: []
  })
});
const { result } = await response.json();
console.log('Latest block:', result.height);

// Get account balance
const balanceRes = await fetch('https://api.celereum.com:8443/rpc', {
  method: 'POST',
  headers: { 'Content-Type': 'application/json' },
  body: JSON.stringify({
    jsonrpc: '2.0',
    id: 2,
    method: 'cel_getBalance',
    params: ['cel1qqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqpyrzv6']
  })
});
const balance = await balanceRes.json();
console.log('Balance:', balance.result.balance / 1e10, 'CEL');

const ws = new WebSocket('wss://api.celereum.com:8444/ws');

// Subscribe to new blocks
ws.send(JSON.stringify({
  type: 'subscribe',
  channel: 'blocks'
}));

// Subscribe to specific address
ws.send(JSON.stringify({
  type: 'subscribe',
  channel: 'address:cel1qqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqpyrzv6'
}));

ws.onmessage = (event) => {
  const data = JSON.parse(event.data);
  switch (data.type) {
    case 'NewBlock':
      console.log('New block:', data.height, data.hash);
      break;
    case 'TxConfirmed':
      console.log('Tx confirmed:', data.hash);
      break;
    case 'TxFinalized':
      console.log('Tx finalized:', data.hash);
      break;
  }
};