Queried by: developers
The Big Picture
Internal migration tracking.
Use Cases
- Verify migration status
From Chain Metadata
Storage for the migration run status.
Purpose & Usage
Purpose
Tracks which migrations have been applied.
Common Query Patterns
- Check migration status by name
Query Keys
| # | Name | Type | Description |
|---|---|---|---|
| 1 | key1 | BoundedVec | key1 (BoundedVec) |
Stored Value
value (bool)
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 });
// Query HasMigrationRun storage
const key1 = 0 as any /* BoundedVec */;
const result = await api.query
[stringCamelCase("Crowdloan")]
[stringCamelCase("HasMigrationRun")](
key1
);
console.log("HasMigrationRun:", result.toHuman());Runtime Info
- Pallet
- Crowdloan
- Storage Kind
- Map
- First Version
- v273
- Current Version
- v393