Filecoin.StateMinerPower - Filecoin

Example code for the Filecoin.StateMinerPower JSON RPC method. Complete guide on how to use Filecoin.StateMinerPower JSON RPC in GetBlock Web3 documentation.

This method returns the storage power of a miner and the total network power at a tipset. Power determines a miner's chance of winning block rewards.

Many state methods take a tipset key as their final parameter: an array of block CIDs identifying the tipset to read. Pass an empty array [] to read against the current chain head.

Parameters

Parameter	Type	Required	Description
address	string	Yes	The miner address (f0...)
tipsetKey	array	Yes	Tipset key to read from; empty array for the chain head

Request

cURL

curl --location --request POST 'https://shared.eu-central-1.getblock.io/<ACCESS-TOKEN>/' \
--header 'Content-Type: application/json' \
--data-raw '{"jsonrpc": "2.0", "method": "Filecoin.StateMinerPower", "params": ["f01234", []], "id": "getblock.io"}'

JavaScript

example.js

const response = await fetch('https://shared.eu-central-1.getblock.io/<ACCESS-TOKEN>/', {
    method: 'POST',
    headers: { 'Content-Type': 'application/json' },
    body: JSON.stringify({
        jsonrpc: '2.0',
        method: 'Filecoin.StateMinerPower',
        params: ["f01234", []],
        id: 'getblock.io'
    })
});

const data = await response.json();
console.log(data.result);

Python

example.py

import requests

response = requests.post(
    'https://shared.eu-central-1.getblock.io/<ACCESS-TOKEN>/',
    headers={'Content-Type': 'application/json'},
    json={
        'jsonrpc': '2.0',
        'method': 'Filecoin.StateMinerPower',
        'params': ["f01234", []],
        'id': 'getblock.io'
    }
)

print(response.json()['result'])

Response

{
    "jsonrpc": "2.0",
    "id": "getblock.io",
    "result": {
        "MinerPower": {
            "RawBytePower": "10995116277760",
            "QualityAdjPower": "10995116277760"
        },
        "TotalPower": {
            "RawBytePower": "27000000000000000000",
            "QualityAdjPower": "27000000000000000000"
        },
        "HasMinPower": true
    }
}

Response Parameters

Field	Type	Description
MinerPower.RawBytePower	string	The miner's raw byte storage power
MinerPower.QualityAdjPower	string	The miner's quality-adjusted power
TotalPower	object	Total network raw and quality-adjusted power
HasMinPower	boolean	Whether the miner meets the minimum power threshold

Use Cases

• Miner Analytics: Read a storage provider's power

• Reward Estimation: Estimate block-reward probability from power share

• Network Metrics: Read total network storage power

• Eligibility Checks: Confirm a miner meets the minimum power

Error Handling

Error Code	Message	Description
-32602	Invalid params	A parameter is missing or has the wrong type or format
1	Actor not found	The address or actor does not exist in the requested tipset
-32603	Internal error	The node failed to process the request