How to solve file upload problem?

Grafana k6 OSS Support
1

I have a problem with k6 file upload. By the way formData.body() returns [object ArrayBuffer] in the console
Taking 500 error which inclues below;

"code":500,"applicationErrorCode":-1,"message":"Unknown Error","exceptionContent":"System.NullReferenceException: Object reference not set to an instance of an object.\n

My code below;

import { describe } from "https://jslib.k6.io/expect/0.0.4/index.js";
import { FormData } from 'https://jslib.k6.io/formdata/0.0.2/index.js';
import exec from "k6/execution";
import { check } from 'k6';
import http from "k6/http";
import Load, { Roles } from "../../../core/load.js";
let endpoints = JSON.parse(open("../../../core/endpoint.json"));


let file = open('../../../utils/waybill.jpg','b')

export function setup() {
    let supportAuth = Load.auth(Roles.Support);
    let waysSeedRes = http.post(
        Load.api + endpoints.Debug.Seed + '?seeds=Ways',
        {
            headers: {
                Authorization: `Bearer ${supportAuth.json().access_token}`,
                "Content-Type": "application/json",
                apikey: "test"
            }
        }
    );
   
    return [
        supportAuth.json(),
        waysSeedRes .json()
    ];
}

const totalVu = 1;
export const options = {
    summaryTimeUnit: "ms",
    scenarios: {
        Ways: {
            exec: "Ways",
            executor: "per-vu-iterations",
            vus: totalVu,
            iterations: 1,
        },
    },
};

export function Ways(data) {
    let tokenForSupport = data[0].access_token;

    describe("Ways scenerio", (t) => {

        const formData = new FormData()
        formData.append('file', file)
        const res = http.post(Load.api + endpoints.Waybills.uploadWaybillImage, formData.body(), {
            headers: {
                Authorization: `Bearer ${tokenForSupport}`,
                 apikey: "test",
                'Content-Type': 'multipart/form-data'
            },
        });
        console.log("fileUpload",res.body)
        check(res, {
            'is status 200': (r) => r.status === 200,
          });



    });
}
3

Hi @Yusuf !

Have you tried to use http.file? See documentation Data Uploads.

“code”:500,“applicationErrorCode”:-1,“message”:“Unknown Error”,“exceptionContent”:"System.NullReferenceException: Object reference not set to an instance of an object.\n

Is it from the response logs? :thinking: I guess the actual error is presented in the server logs.

Let me know know if that answers,
Cheers!

5

@olegbespalov tried http.file but got same error. I guess , this is related to our server error. You are right