DispatchClass

Variant 24 v393

frame_support::dispatch::DispatchClass

About This Type

Classification of an extrinsic: Normal, Operational, or Mandatory.

Determines how a transaction consumes block weight. Normal transactions compete for limited block space, Operational are prioritized, and Mandatory always execute (like timestamp inherents).

Variants (3)

IndexNameFieldsDocs
0Normalnone
1Operationalnone
2Mandatorynone

SCALE Encoding

Rule
1-byte variant index followed by variant-specific field data. 3 possible variants.
Size
variable (1+ bytes)

Examples

Normal
0x00
00 Variant index 0 = Normal
Operational
0x01
01 Variant index 1 = Operational
Mandatory
0x02
02 Variant index 2 = Mandatory

Code Examples

import { TypeRegistry } from "@polkadot/types";

const registry = new TypeRegistry();

// Encode DispatchClass — variant "Normal"
const value = registry.createType("DispatchClass", "Normal");
console.log("Hex:", value.toHex());

Referenced By (2)

#23 DispatchEventInfo via class#592 RuntimeDispatchInfo via class

Type Information

Type ID
24
Kind
Variant
Path
frame_support::dispatch::DispatchClass
Runtime
v393
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