How to get controllers and status of a canisterId?

gohan · April 4, 2022, 7:34am

Screenshot 2022-04-04 at 12.58.23 PM
In canlista, we can see canister running status and controllers.

Using javascript/agent how to get controllers and running status of a provided canisterId?

If not, how to get this information? motoko/rust ?

gohan · April 4, 2022, 7:39am

using dfx we can get by
dfx canister --network ic info ivcos-eqaaa-aaaab-qablq-cai

Controllers: hgfyw-myaaa-aaaab-qaaoa-cai
Module hash: 0x2d8060fe316775976ad0a33975e846e98b649536be51c8bcf33a7c61806041c6

github.com

dfinity/sdk/blob/6c892b4ebc97ed9a62e900be4a8b3417a8b4f5ba/src/dfx/src/commands/canister/info.rs

use crate::lib::environment::Environment;
use crate::lib::error::DfxResult;
use crate::lib::models::canister_id_store::CanisterIdStore;
use crate::lib::root_key::fetch_root_key_if_needed;

use anyhow::{anyhow, bail};
use clap::Parser;
use ic_agent::AgentError;
use ic_types::Principal;
use serde_cbor::Value;
use std::convert::TryFrom;

/// Get the hash of a canister’s WASM module and its current controller in a certified way.
#[derive(Parser)]
pub struct InfoOpts {
    /// Specifies the name or id of the canister to get its certified canister information.
    canister: String,
}

pub async fn exec(env: &dyn Environment, opts: InfoOpts) -> DfxResult {

This file has been truncated. show original

How to achieve same by JS?

peterparker · April 4, 2022, 8:02am

I tried this last week How to make IC Management API canister_status call with @dfinity/agent? - #2 by peterparker

gohan · April 4, 2022, 8:59am

@peterparker Your approach doesn’t seems to give controllers info for anonymous identity.

But, by using nns/lifeline - rno2w-sqaaa-aaaaa-aaacq-cai canister and method canister_status I am able get Canister’s controllers information as an error

https://a4gq6-oaaaa-aaaab-qaa4q-cai.raw.ic0.app/?id=rno2w-sqaaa-aaaaa-aaacq-cai

any other cleaner approach to get controllers and canister running, module hash status using js?

peterparker · April 4, 2022, 9:12am

At the end of the day I deferred the work to the backend canister in a custom function so that’s an alternative. You implement the function in your canister and from js you call your own custom function.

GLdev · April 4, 2022, 9:47am

You should check out the discussion here

Topic		Replies	Views
If you need to get a canisters controllers from within canister Developers	9	668	June 5, 2023
Getting a canister's controllers from rust Rust	2	901	October 4, 2022
Getting a Canister's Controller On-Chain DFINITY	17	3597	May 22, 2023
Any way to know if a canister was updated? Developers	15	1741	January 15, 2022
How to find out the controllers of a canister? Developers	4	683	August 23, 2022

How to get controllers and status of a canisterId?

Related topics