ContractInfoOf

Storage Map v334 → v411 Changed in v411

Information about deployed contract instances.

Queried by: developersanalytics

The Big Picture

The registry of all deployed contracts. Presence here means the address is a live contract. Contains code_hash (which version it runs), deposit info, and storage meter data.

Use Cases

Verify an address is a deployed contract
Get contract metadata (code, deposit)
Analyze contract storage usage
Build contract explorers

From Chain Metadata

The code associated with a given account. TWOX-NOTE: SAFE since `AccountId` is a secure hash.

Purpose & Usage

Purpose

Tracks contract state including code reference, storage usage, and deposit info.

Common Query Patterns

Query by contract address
Check if address is a contract
Get contract's current code_hash

Query Keys

#	Name	Type	Description
1	contractAddress account raw: key1	[u8; 32] [32]	key1 ([u8; 32])

Stored Value

ContractInfo

value (ContractInfo)

Relationships

Modified By

call call_old_weight instantiate instantiate_old_weight instantiate_with_code instantiate_with_code_old_weight migrate set_code

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 ContractInfoOf storage
const key1 = "0x0000000000000000000000000000000000000000000000000000000000000000";

const result = await api.query.Contracts.ContractInfoOf.getValue(key1);
console.log("ContractInfoOf:", result);

Version History

Version:

v334 block 6,811,690 Added

v353–v360 · runtime versions skipped on chain (never deployed)

v361 block 7,063,679 Internal re-bind

v363–v364 · runtime versions skipped on chain (never deployed)

v365 block 7,135,419 Internal re-bind

v378–v384 · runtime versions skipped on chain (never deployed)

v385 block 7,782,670 Internal re-bind

v386–v390 · runtime versions skipped on chain (never deployed)

v391 block 7,782,857 Internal re-bind

v394–v400 · runtime versions skipped on chain (never deployed)

v401 block 8,036,576 Internal re-bind

v403–v410 · runtime versions skipped on chain (never deployed)

v411 block 8,283,784 Internal re-bind Current

Runtime Info

Pallet: Contracts
Storage Kind: Map
First Version: v334
Current Version: v411

Back to Contracts Storage