Hi @Harshsahay
I created an example that I hope can help. Based on our public test API that accepts bearer tokens.
import http from 'k6/http';
import exec from 'k6/execution';
import { check, sleep } from 'k6';
import { SharedArray } from 'k6/data';
import papaparse from 'https://jslib.k6.io/papaparse/5.1.1/index.js';
const sharedData = new SharedArray("Shared Logins", function () {
let data = papaparse.parse(open('test-users.csv'), { header: true }).data;
return data;
});
let vuToken;
let request_headers;
export const options = {
vus: 2,
iterations: 10,
};
/**
* Gets user token from username and password
* @function
* @param {string} username - Username
* @param {string} password - Password
*/
export function getToken(username, password) {
let data = {
username: username,
password: password,
};
const response = http.post('https://test-api.k6.io/auth/token/login/', JSON.stringify(data), {
headers: { 'Content-Type': 'application/json' },
});
return response.json('access');
}
export default function () {
if (vuToken === undefined) {
vuToken = getToken(sharedData[exec.vu.idInTest - 1].username, sharedData[exec.vu.idInTest - 1].password)
request_headers = {
'content-type': "application/json",
'Authorization': `Bearer ${vuToken}`
};
}
// create a crocodrile
const croc = {
name: 'My Croc',
sex: 'F',
date_of_birth: '2019-01-01',
};
console.log("request_headers: ", request_headers);
let response = http.post('https://test-api.k6.io/my/crocodiles/', JSON.stringify(croc), { headers: request_headers });
check(response, {
'is status 201': (r) => r.status === 201,
});
// get private crocrodile list
response = http.get('https://test-api.k6.io/my/crocodiles/', { headers: request_headers });
console.log('My Crocodiles: ', response.json());
}
This with a file test-users.csv which contains a couple of users:
username,password
user1@example.com,superCroc2021
user2@example.com,superCroc2019
Would result in:
running (00m04.4s), 0/2 VUs, 10 complete and 0 interrupted iterations
default ✓ [======================================] 2 VUs 00m04.4s/10m0s 10/10 shared iters
✓ is status 201
checks.........................: 100.00% ✓ 10 ✗ 0
data_received..................: 26 kB 5.9 kB/s
data_sent......................: 9.6 kB 2.2 kB/s
http_req_blocked...............: avg=19.19ms min=4µs med=8.5µs max=212.24ms p(90)=14.9µs p(95)=199.48ms
http_req_connecting............: avg=9.31ms min=0s med=0s max=102.52ms p(90)=0s p(95)=97.31ms
http_req_duration..............: avg=374.8ms min=115.44ms med=126.95ms max=2.92s p(90)=150.16ms p(95)=2.67s
{ expected_response:true }...: avg=374.8ms min=115.44ms med=126.95ms max=2.92s p(90)=150.16ms p(95)=2.67s
http_req_failed................: 0.00% ✓ 0 ✗ 22
http_req_receiving.............: avg=147.18µs min=65µs med=146µs max=282µs p(90)=211.6µs p(95)=256.79µs
http_req_sending...............: avg=48.13µs min=26µs med=45.5µs max=96µs p(90)=71.7µs p(95)=74.84µs
http_req_tls_handshaking.......: avg=9.77ms min=0s med=0s max=108.68ms p(90)=0s p(95)=101.02ms
http_req_waiting...............: avg=374.61ms min=115.21ms med=126.79ms max=2.92s p(90)=149.93ms p(95)=2.67s
http_reqs......................: 22 4.99944/s
iteration_duration.............: avg=868.36ms min=240.94ms med=249.92ms max=3.39s p(90)=3.29s p(95)=3.34s
iterations.....................: 10 2.272473/s
vus............................: 2 min=2 max=2
vus_max........................: 2 min=2 max=2
Each VU will create their token on the first iteration and reuse it. That should work if the tokens do not expire during the test.
You cannot create a token in the setup() function. As per k6 lifecycle, the setup is called only once. Thus cannot contain code that should be executed per VU.
I hope this helps. Thanks for your patience.
Cheers!