code-step-example.js

// This is a contrived example of some of the things you can do in a Loadster code step.
// HTTP and Wait methods are synchronous by design, no callbacks required.
// More documentation is coming soon!

console.log("We're in a code step.");

// Wait between 0 and 2 seconds
user.wait(Math.random() * 2000);

// Make a GET request with page resources
user.get("https://loadster.app", {
    resources: [
        "/style.css",
        "/logo.png"
    ]
});

// Set a user variable to a random integer from 0 to 19
user.setVariable("random", Math.floor(Math.random() * 20));

// Loop and make 5 requests with a counter param and value from a user variable
for (var i = 0; i < 5; i++) {
    user.get("https://loadster.app?i=" + i + "&random=" + user.getVariable("random"));
}

// Make a POST with a JSON body
user.post("https://loadster.app/bogus", { 
    random: user.getVariable("random") 
}, {
    headers: [
        { name: "Content-Type", value: "application/json" }
    ]
});

// A note on variables:
// User variables are scoped to the v-user iteration, and carry over to subsequent steps.
// Set and retrieve them with setVariable/getVariable. Normal JavaScript variables 
// (the var keyword) are scoped to this block only.