Is there an EL function to generate uuid using java in gatling

is there an EL function to generate UUID using java in Gatling

I’m not sure if my proposition is optimal but I would do it in this way:

import io.gatling.javaapi.core.ScenarioBuilder;
import io.gatling.javaapi.core.Simulation;
import io.gatling.javaapi.http.HttpProtocolBuilder;

import java.util.Collections;
import java.util.Iterator;
import java.util.Map;
import java.util.UUID;
import java.util.function.Supplier;

import static io.gatling.javaapi.core.CoreDsl.atOnceUsers;
import static io.gatling.javaapi.core.CoreDsl.scenario;
import static io.gatling.javaapi.http.HttpDsl.http;

public class FunWithFeederUUIDSimulation extends Simulation {

    HttpProtocolBuilder httpProtocol = http;

    Iterator<Map<String, Object>> feederUUID =
            Stream.generate((Supplier<Map<String, Object>>) () -> {
        String uuidString = UUID.randomUUID().toString();
        return Collections.singletonMap("uuidString", uuidString);

    ScenarioBuilder scn =
            scenario("Scenario Name")
                    .exec(session -> {
                        System.out.println("GeMi_session: " + session.toString());
                        System.out.println("GeMi_feederUUID_uuidString: " + session.get("uuidString"));
                        return session;


Thank you @GeMi . I tried this similar code. But this one is working well.

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I’ve filled a feature ticket for this: Core: add random generators to Gatling EL · Issue #4305 · gatling/gatling · GitHub

Contributions welcome.

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