ExecutedFailed

Event v210 → current #4

Emitted when a contract call fails, reverting state but consuming gas.

View events on chain
Useful for: developers

The Big Picture

Contract calls can fail from require() failures, out of gas, or invalid state. State unchanged but gas spent.

Use Cases

  • Debug failures
  • Monitor failure rates
  • Build retry logic

From Chain Metadata

A contract has been executed with errors. States are reverted with only gas fees applied.

Triggers

Emitted by

call

Preconditions

  • Call attempted
  • Error or revert occurred

Effects

Storage Modified

AccountStorages

Postconditions

  • State reverted
  • Gas still charged

Event Data

#NameTypeDescription
0
address
→ contract_address
H160 Address of the contract that failed (H160)

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

Runtime Info

Pallet Index
22
Event Index
4
First Version
v210
Current Version
v411
Back to EVM Events