BatchInterrupted

Event v120 → current #0

Emitted when a batch did not complete fully - gives index of first failing call .

View events on chain
Useful for: developersanalyticswallets

The Big Picture

When batching multiple calls, this event tells you where things went wrong.

Use Cases

  • Debug which call in a batch failed

From Chain Metadata

Batch of dispatches did not complete fully. Index of first failing dispatch given, as well as the error.

Triggers

Emitted by

batchbatch_all

Preconditions

  • batch or batch_all call executed
  • At least one inner call failed

Effects

Postconditions

  • Calls up to (but not including) index executed

Side Effects

  • Contains error details for debugging

Event Data

#NameTypeDescription
0
index
u32 Index of the first failing call in the batch
1
error
DispatchError Error that caused the batch to be interrupted

Code Examples

import { createClient, Binary } from "polkadot-api";
import { getWsProvider } from "polkadot-api/ws";
import { sub } from "@polkadot-api/descriptors"; // generated by: npx papi add sub -w wss://entrypoint-finney.opentensor.ai:443

const client = createClient(getWsProvider("wss://entrypoint-finney.opentensor.ai:443"));
const api = client.getTypedApi(sub);

// Subscribe to BatchInterrupted events
client.finalizedBlock$.subscribe(async (block) => {
  const events = await api.event.Utility.BatchInterrupted.get(block.hash);
  for (const evt of events) {
    console.log("BatchInterrupted:", evt.payload);
  }
});

On-Chain Activity

Emission Frequency
●●●○○○ Active 100K–1M emissions

Regular feature-level activity

#40 most emitted event

As of block 7,429,232

Runtime Info

Pallet Index
11
Event Index
0
First Version
v120
Current Version
v411
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