/pallets/{palletId}/consts - Polkadot

Example code for the /pallets/{palletId}/consts REST method. Complete guide on how to use /pallets/{palletId}/consts REST in GetBlock Web3 documentation.

This endpoint returns the constants defined by a pallet, such as bonding durations or deposit amounts.

On GetBlock's unified endpoint, Asset Hub is the default network. To call this endpoint against the Relaychain, add an /rc prefix to the path (for example, /rc/pallets/{palletId}/consts).

Endpoint

GET /pallets/{palletId}/consts

Path Parameters

Parameter	Type	Description
palletId	string	Pallet name or index

Query Parameters

Parameter	Type	Required	Description
at	string	No	Block height or hash to query at

Request

cURL

curl --location 'https://shared.eu-central-1.getblock.io/<ACCESS-TOKEN>/pallets/staking/consts'

JavaScript

example.js

const response = await fetch('https://shared.eu-central-1.getblock.io/<ACCESS-TOKEN>/pallets/staking/consts');
const data = await response.json();
console.log(data);

Python

example.py

import requests

response = requests.get('https://shared.eu-central-1.getblock.io/<ACCESS-TOKEN>/pallets/staking/consts')
print(response.json())

Response

{
  "at": {
    "hash": "0x255bc00927df8d33d561792635cbc6bde480a0a505eef5ff28630ece3fc15b32",
    "height": "6754362"
  },
  "pallet": "staking",
  "palletIndex": "7",
  "items": [
    {
      "name": "BondingDuration",
      "type": "u32",
      "value": "28"
    },
    {
      "name": "MaxNominations",
      "type": "u32",
      "value": "16"
    }
  ]
}

Response Fields

Field	Type	Description
pallet	string	Pallet name
items	array	Constants defined by the pallet
items[].name	string	Constant name
items[].value	string	Constant value

Use Cases

• Parameter Reads: Read a pallet's on-chain constants

• Staking UX: Show the bonding duration to users

• Governance Tools: Read deposit and threshold constants

• Documentation: Surface runtime parameters