Looping Requests

Gatling (Open-Source)
1

Hey Guys,

Been making lots of head way, however i’m a bit stuck on a particular type of task. Which is looping through a result and making requests based on a previous request. I’m sure it’s something simple. Here’s how I would sort of expect it to work.

scenario(“Show Course”)
.feed(learners)
.exec(default)
// index modules stores a list of ids in the session
.exec(doIndexModules())
.exec(session => {
session(“moduleIds”).as[List[Int]].foreach(id => {
// some http task in here
exec(doSomeTaskWithModuleId(id));
})

session
})

This compiles, and executes, how ever the inner 'doSomeTaskWithModule does not. I’m obviously missing something, but my read and googling has yielded nothing.

Any guidance would be very helpful.

.joe

2

You can’t mix exec( session => session ) with exec( chain ). It’s got to be broken down into smaller, more fundamental steps.

In a exec( session => session ) function, extract the number of elements from moduleIds and store it, e.g. moduleIdCount

repeat( “${moduleIdCount}”, “n” ) {
exec( session => session.set( “moduleId”, “${moduleIds(n)}” ) )
exec( doSomeTaskWithModuleId ) // which must reference “${moduleId}” as opposed to taking a parameter
}

Make sense?

There may be a more elegant solution, but for that you will need someone more experienced than I. :slight_smile:

3

Yeah I think that’ll work for me.

Thanks a bunch :slight_smile: