Figuring out how to get params from activate hook on aurelia

sprint.js

import {bindable, inject, NewInstance} from 'aurelia-framework';
import {HttpClient, json} from 'aurelia-fetch-client';
import {Router} from 'aurelia-router';

@inject(NewInstance.of(HttpClient))
export class Sprint {
    tbColaborador;
    constructor(http, sprintId) {
        this.http = http;
        this.getList();
    }
        attached() {
}
activate(item) {
      item = item.id;
}
getList(item) {
      return this.http.fetch('http://10.1.70.103:3536/metricas/sprints/' + item)
            .then(response => response.json())
            .then(data => {
                console.log(data);
                    this.tbColaborador = data;
            })
    } 
}

Add routerParams variable

change item to params

this.routerParams = params; ???

retrieve id value from this.routerParams.id;