Result

Variant 42 v411

Result

About This Type

Standard Rust Result type: Ok(T) or Err(E).

The return type of most pallet dispatchable calls (with T=() and E=DispatchError). Ok indicates success; Err contains an error explaining what went wrong.

Encoding: Variant: 0x00 = Ok (followed by T encoding), 0x01 = Err (followed by E encoding).

Variants (2)

Index	Name	Fields	Docs
0	Ok	()
1	Err	DispatchError

SCALE Encoding

Rule: Variant: 0x00 = Ok (no payload), 0x01 = Err (followed by DispatchError).
Size: variable (1+ bytes)

Examples

Success (Ok) = Ok(())

0x00

00 Variant index 0 = Ok, no payload

Failure (Err) = Err(DispatchError::BadOrigin)

0x0102

01 Variant index 1 = Err

02 DispatchError variant 2 = BadOrigin

Code Examples

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

const registry = new TypeRegistry();

// Encode Result — variant "Ok"
const value = registry.createType("Result", { Ok: { value: 0 } });
console.log("Hex:", value.toHex());

Type Parameters

T = ()

E = DispatchError

Referenced By (7)

#39 SubtensorModule::Event via Sudid #67 Utility::Event via DispatchedAs.result #68 Sudo::Event via Sudid.sudo_result #68 Sudo::Event via SudoAsDone.sudo_result #70 Multisig::Event via MultisigExecuted.result #73 Scheduler::Event via Dispatched.result #76 Proxy::Event via ProxyExecuted.result

Type Information

Type ID: 42
Kind: Variant
Path: Result
Runtime: v411

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