Cannot find module "child_process"

Question

I am trying to use sinch in ionic 3 project for phone verification, and I follow all the step, but I am facing the following error. Did anyone use sinch. I search about it, but could not find any solution.

My code is

import { Component } from '@angular/core';
import { IonicPage, NavController, NavParams } from 'ionic-angular';
import { userRegistration } from '../../../helper/userRegistration';
import { SigninEnterResponseCodePage } from '../../pages';

declare var require: any;
var SinchClient = require('sinch-rtc');

@IonicPage()
@Component({
  selector: 'page-signup-phone-verification',
  templateUrl: 'signup-phone-verification.html',
})
export class SignupPhoneVerificationPage {
  model: userRegistration;
  userData;
  sinchClient: any;
  constructor(public navCtrl: NavController, public navParams: NavParams) {
    this.sinchClient = new SinchClient({
      applicationKey: 'myKey'
    });
    if (this.navParams.get('userRegistrationData')) {
      this.userData = this.navParams.get('userRegistrationData');
      this.model = new userRegistration(this.userData.gender, this.userData.dateOfBirth);
    }
  }
  ionViewDidLoad() {
    console.log("model is ", this.model);
    console.log("sinch information  ", SinchClient);

    console.log('ionViewDidLoad SignupPhoneVerificationPage');
  }
  gotoToSigninPhoneVerification() {
    var verification = this.sinchClient.createSmsVerification(myPhone);
    verification.initiate(
      (data) => {
        console.log("resposne data from sinch server is ", data);
      },
      (error) => {
        console.log("error received from sinch is ", error);
      });
  }

}