Node js clusters can't be imported in typescript

Question

I'm imported clusters as import * as cluster from "cluster"; and when I'm trying to check cluster.isMaster in if(cluster.isMaster){} I'm getting this error

TS2339: Property 'isMaster' does not exist on type 'typeof import("cluster")'.

and import cluster from "cluster"; I'm getting that cluster is undefined . How can I solve the problem in ts, how can I import clusters in ts and use them?

Answer 1

isMaster is not a named import of the the cluster module. It's a property of the default export of the module.

This means that you want to import the default export, and not as import * as .

import cluster from "cluster"
if (cluster.isMaster) { console.log('master') }

Playground

Answer 2

I have got the same issue today, and this workaround worked for me:

import * as _cluster from 'cluster';
const cluster = _cluster as unknown as _cluster.Cluster; // typings fix