sudo_set_tx_delegate_take_rate_limit
Call v149 → current #45Sets how often delegates can change their take rate.
View calls on chainCall Workflow
This diagram shows the call execution flow: starting with sudo_set_tx_delegate_take_rate_limit, passing through validation
(signature, nonce, mortality, fee payment), then pre-dispatch checks, followed by dispatch and modifies storage: SubtensorModule.TxDelegateTakeRateLimit, and finally post-dispatch where ExtrinsicSuccess is emitted and fees are settled.
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Used by: subnet owners
The Big Picture
Limits how frequently validators can change their delegation take. Protects delegators from bait-and-switch.
Use Cases
- Preventing take manipulation
- Protecting delegators from sudden changes
From Chain Metadata
See [`Pallet::sudo_set_tx_delegate_take_rate_limit`].
Input Parameters
| # | Name | Type | Description |
|---|---|---|---|
| 0 | tx_rate_limit | u64 | tx_rate_limit (u64) |
Permissions
Origin
Root
Required Role
Permission data inferred from metadata. May be incomplete.
Requirements
- Caller is root account
Effects
Storage Modified
Postconditions
- TxDelegateTakeRateLimit updated
Side Effects
- Affects delegate take change frequency
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);
// Build sudo_set_tx_delegate_take_rate_limit call (typed, named args)
const tx_rate_limit = 0n;
const tx = api.tx.AdminUtils.sudo_set_tx_delegate_take_rate_limit({
tx_rate_limit,
});Runtime Info
View Source- Pallet Index
- 19
- Call Index
- 45
- First Version
- v149
- Current Version
- v411