how to pass path Parameters in Gatling?

Gatling (Open-Source)
1

Hi,

how to pass path Parameters in Gatling? I have checked the documentation and couple of blogs and everyone is talking either about query parameters or parameters needed to run the query from command line.

2

Any idea?

3

The main idea is to read from the system properties inside your simulation code.

Let’s say you run your simulation with the following command:

mvn gatling:test -Dcustomproperty=somevalue

You can retrieve the value in your simulation as such:

sys.props.getOrElse(“customproperty”, “defaultvalue”)

The value will always be a String, which you can convert to any type afterwards (E.g.: using .toInt)

A more involved way could be to use property files (that looks like gatling.conf) and convert the file to scala case classes using ficus (https://github.com/iheartradio/ficus).

4

Hey,

not sure if I understood that correctly.

so lets say, I have a Url - https://restaurantportal//menuitems, here restaurantID is the URL Parameter.
if it was a query param I could have added

http(“Getting issues”)

.get(“https://github.com/gatling/gatling/issues”)

.queryParam(“milestone”, “1”)

there is nothing I found which is called pathParam in Gatling.

so as of now I am barcoding the path params in the URL.

Let me know if any ideas.

5

Oh,

I misunderstood your request.

Right, there is no path param, only query parameters that helps append ?key=value stuff at the end of a query.

You can hardcode your queries indeed. But I’d suggest using the Expression Language instead: https://gatling.io/docs/current/session/expression_el/

The idea is to save data on a request, and reuse it later on a query with the ${} syntax:

exec(
http(“Query to fetch restaurants”)
.get("…")
.check(
anyCheckThatCapturesARestaurantID… .saveAs(“restaurantID”)
)
)
// …
.exec(
http(“Using restaurantID”)
.get(“https://restaurantportal/${restaurantID}/menuitems”)
)