Pass data from one function to another

Grafana k6 OSS Support
1

How can I pass some variable from one group to another? I need to use some data in the response body that is within group A in the request of group B.

2 
export default function() {

    // Declare variables here for global use
    let var1;

    
    group("function_1", function(){
         let url = "url.com";
         let response = http.get(url, params);
         var1 = response.json("0.tokens.0.token");
   });

    
    group("function2", function(){
         const url = "url2.com";

        let payload = JSON.stringify({
           "token": `${var1}`
        });
};
1 Like
3

I see now that this was a poorly asked question…

I have created the user actions as functions outside the default function. This means that each group inside the default function calls these functions. I can’t seem to use the return value when it is inside the group:

export default function() {

    // Declare variables here for global use
    let var1;

    group("function_1", function() {var1 = doPage1()});
    group("function2", function(){doPage2()});
};

function doPage1 () {
         let url = "url.com";
         let response = http.get(url, params);
         var1 = response.json("0.tokens.0.token");
         return var1;
};

function doPage2 () {
         const url = "url2.com";

        let payload = JSON.stringify({
           "token": `${var1}`
};
4

You need to provide it as an argument to the function in the second group like:

import { group } from "k6";
export default function() {
    // Declare variables here for global use
    let var1;
    group("function_1", function() {var1 = doPage1()});
    group("function2", function(){doPage2(var1)});
};

function doPage1 () {
    return "something";
};

function doPage2 (var1) {
    const url = "url2.com";
    console.log(JSON.stringify({ "token": `${var1}`}));
};

$ k6 run -q --no-summary var.js

          /\      |‾‾|  /‾‾/  /‾/
     /\  /  \     |  |_/  /  / /
    /  \/    \    |      |  /  ‾‾\
   /          \   |  |‾\  \ | (_) |
  / __________ \  |__|  \__\ \___/ .io

  execution: local
     output: -
     script: var.js

    duration: -,  iterations: 1
         vus: 1, max: 1

INFO[0000] {"token":"something"}
1 Like
5

Omg… thanks for pointing out the obvious:)

2 Likes