Current Value
131072Relevant for: developers
The Big Picture
WASM code can't be arbitrarily large. This limit protects against oversized contracts that would slow compilation or consume excessive storage. Optimize or split large contracts.
From Chain Metadata
The maximum length of a contract code in bytes. The value should be chosen carefully taking into the account the overall memory limit your runtime has, as well as the [maximum allowed callstack depth](#associatedtype.CallStack). Look into the `integrity_test()` for some insights.
Use Cases
- Check if your contract fits size limits
- Plan contract architecture for large applications
Code Examples
import { ApiPromise, WsProvider } from "@polkadot/api";
import { stringCamelCase } from "@polkadot/util";
const provider = new WsProvider("wss://entrypoint-finney.opentensor.ai:443");
const api = await ApiPromise.create({ provider });
// Query MaxCodeLen constant
const value = api.consts[stringCamelCase("Contracts")][stringCamelCase("MaxCodeLen")];
console.log("MaxCodeLen:", value.toHuman());Type Information
- Type
- u32
- Byte Size
- 4 bytes
- Encoding
- fixed
- Raw Hex
- 0x00000200
Runtime Info
- Pallet
- Contracts
- First Version
- v334
- Latest Version
- v334
- Current Runtime
- v393