Announced

Event Re-added v149 → v323, v326 → current #3

Emitted when a time-delayed proxy announces a future call .

View events on chain

Useful for: stakersvalidatorsdeveloperswalletsanalytics

The Big Picture

Time-delayed proxies announce before acting, enabling review.

Use Cases

Monitor announced proxy actions

From Chain Metadata

An announcement was placed to make a call in the future.

Triggers

Emitted by

announce

Preconditions

Proxy has delay > 0
MaxPending not exceeded

Effects

Storage Modified

Announcements

Postconditions

Announcement stored with call hash

Side Effects

Announcement deposit reserved

Event Data

#	Name	Type	Description
0	real	AccountId	The account for which the announcement was made (hex -> SS58)
1	proxy	AccountId	The proxy account that made the announcement (hex -> SS58)
2	call_hash	H256	Blake2-256 hash of the announced call

Code Examples

import { ApiPromise, WsProvider } from "@polkadot/api";
import { stringCamelCase } from "@polkadot/util";

const provider = new WsProvider("wss://entrypoint-finney.opentensor.ai:443");
const api = await ApiPromise.create({ provider });

// Subscribe to Announced events
api.query.system.events((events) => {
  events
    .filter(({ event }) =>
      event.section === stringCamelCase("Proxy") &&
      event.method === "Announced"
    )
    .forEach(({ event }) => {
      console.log("Announced:", event.data.toHuman());
    });
});

Version History

Version:

v149 block 3,014,339 3 args

v326 block 6,608,228 3 args Current

Runtime Info

Pallet Index: 16
Event Index: 3
First Version: v149
Current Version: v393

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