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broadcastTxSync

Broadcast a signed transaction via the indexer mutation and poll for inclusion.

Signature

function broadcastTxSync(
  client: Client,
  parameters: { tx: Tx | UnsignedTx },
): Promise<{ hash: Uint8Array } & TxData>

Example

import { createSignerClient, createTransport, testnet, PrivateKeySigner } from "@left-curve/sdk"
 
const client = createSignerClient({
  chain: testnet,
  transport: createTransport(),
  signer: PrivateKeySigner.fromMnemonic(process.env.DANGO_MNEMONIC!),
})
 
// Most callers use signAndBroadcastTx instead, which builds and signs the tx.
const result = await client.broadcastTxSync({
  tx: {
    sender: "0x1234567890abcdef1234567890abcdef12345678",
    msgs: [{ transfer: { "0xabcdef...": { dango: "1000000" } } }],
    gasLimit: 200_000,
    credential: { /* ... */ },
    data: { /* metadata */ },
  },
})

Parameters

tx — Tx | UnsignedTx. A signed transaction. UnsignedTx is accepted but the chain will reject it unless the sender is a contract address.

Returns

{ hash: Uint8Array } & TxData — the transaction hash plus TxData fields (code, gas_used, gas_wanted, log).

Notes

  • After broadcasting, the function polls queryTx up to 30 times at 500ms intervals (~15 seconds). It throws if the tx never lands or if tx_result.code !== 0.
  • For end-to-end signing, use signAndBroadcastTx — it builds the metadata, simulates gas, signs, and broadcasts in one call.

See also