Queried by: developers
The Big Picture
Available during block execution. Contains raw SCALE-encoded extrinsics.
Use Cases
- Debug extrinsic encoding
From Chain Metadata
Extrinsics data for the current block (maps an extrinsic's index to its data).
Purpose & Usage
Purpose
Access extrinsic bytes during block execution.
Common Query Patterns
- Query by extrinsic index
Query Keys
| # | Name | Type | Description |
|---|---|---|---|
| 1 | extrinsicIndex raw: key1 | u32 | key1 (u32) |
Stored Value
Vec<u8> Vec
value (Vec<u8>)
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);
// Query ExtrinsicData storage
const key1 = 0;
const result = await api.query.System.ExtrinsicData.getValue(key1);
console.log("ExtrinsicData:", result);Version History
v101 block 1 Added
v149 block 3,014,339 Internal re-bind
v151 block 3,157,274 Internal re-bind Current
Runtime Info
- Pallet
- System
- Storage Kind
- Map
- First Version
- v101
- Current Version
- v411