This call was removed in v326
This call is no longer available in the current runtime. Existed from v123 to v326. Shown here for historical reference.
set_prime
Call Removed v123 → v326 (removed) #5Sets the Senate prime.
Call Workflow
This diagram shows the call execution flow: starting with set_prime, passing through validation
(signature, nonce, mortality, fee payment), then pre-dispatch checks, followed by dispatch, and finally post-dispatch where ExtrinsicSuccess is emitted and fees are settled.
Press enter or space to select a node. You can then use the arrow keys to move the node around. Press delete to remove it and escape to cancel.
Press enter or space to select an edge. You can then press delete to remove it or escape to cancel.
Click items to navigate. Pan and zoom to explore.
Used by: validators
The Big Picture
Sets the leader role.
Use Cases
- Designate leader
From Chain Metadata
Set the prime member. Must be a current member. May only be called from `T::PrimeOrigin`.
Input Parameters
| # | Name | Type | Description |
|---|---|---|---|
| 0 | who | MultiAddress | who (MultiAddress) |
Permissions
Origin
Unknown
Required Role
Permission data inferred from metadata. May be incomplete.
Requirements
- Origin has authority
Effects
Postconditions
- Prime set
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 });
// Build set_prime call
const who = 0 as any /* MultiAddress */;
const call = api.tx[stringCamelCase("SenateMembers")][stringCamelCase("set_prime")](
who
);Runtime Info
- Pallet Index
- 10
- Call Index
- 5
- First Version
- v123
- Removed In
- v326