Action that makes http call

Gatling (Open-Source)
1

Hello,

I have to create a scenario with a custom user’s action: user logons with the post action (a cookie is set) and the custom action is called.

I wonder if I can use GatlingHttpClient.newClient ? Do the exiting cookies will be used (I do no see any cookie in the GatlingHttpClient.newClient code) ?

Regards,

Nicolas

2

Hi,

Could you first detail why you need a custom action for this?

Stéphane

3

My purpose is to stress a gwt application. I’m using gwtrpccommlayer (http://code.google.com/p/gwtrpccommlayer/).

---- Client side----

  1. gwtrpccommlayer instruments MyService interface with a proxy and return myService
  2. client call myService.action(args)
  3. proxy is invoked
  4. proxy serializes the service name, the method name and the arguments
  5. proxy makes an http request
    ---- server side----
  6. server deserialize the request
  7. server gets the MyService implementation and invoke action(args)
  8. server serialize the result of the service
    ---- client side----
  9. proxy receives the responses and deserialize the result

The advantage of gwtrpccommlayer is I’m always sync with the java interface. I do not have to modify request when interface changed. The request generation tasks are definitively easier.

Hope i’m clear…

4

Looks like a good idea.
But my first impression is that you don’t want to use Gatling’s HTTP builtins that use Async Http Client: gwtrpccommlayer is built on top of Apache Http Client, which is a different project.

5

I want to manage users authentication and session with gatling (authentication is based on spring security with custom jsp page)

It seems I have to make a choice between a full gatling solution or an http client one :wink:

If I use http client, can I set the HttpClient instance in the user session?

6

I want to manage users authentication and session with gatling
(authentication is based on spring security with custom jsp page)

It seems I have to make a choice between a full gatling solution or an
http client one :wink:

Well, no, but you of course have more work to have the 2 of them
communicate.

If I use http client, can I set the HttpClient instance in the user
session?

I assume that you're talking about Apache.
So yes, of course. That's what we do with Async Http Client when one use
disableClientSharing. That's also how Andrew's websocket support works.

7

I want to manage users authentication and session with gatling (authentication is based on spring security with custom jsp page)

It seems I have to make a choice between a full gatling solution or an http client one :wink:

Well, no, but you of course have more work to have the 2 of them communicate.

Yes, I mean the shortest path

If I use http client, can I set the HttpClient instance in the user session?

I assume that you’re talking about Apache.
So yes, of course. That’s what we do with Async Http Client when one use disableClientSharing. That’s also how Andrew’s websocket support works.

I wanted to be sure that I will not meet issue like serialization one…

Thanks for your help Sylvain.

8

Yes, I mean the shortest path

The shortest/ugliest path is probably to use Session hooks (exec(Session =>
Session)) and store the Apache engine instance, either as a shared object
(if it's to be shared), or in the session (if it's not). Don't forget to
register the engine instances like
here<https://github.com/excilys/gatling/blob/master/gatling-http/src/main/scala/io/gatling/http/ahc/HttpClient.scala#L67&gt;,
so they get properly shut down.

I wanted to be sure that I will not meet issue like serialization one...

At this point, Gatling Session are never serialized. Might change someday
though, don't know yet.

Thanks for your help Sylvain.

You're welcome François

9

sorry Stephane… :wink:

10

No pro, my brother’s name is actually Sylvain, so I’m used to it :wink: