How to load the body part every time in load testing

Gatling (Open-Source)
1

exec(
http(session => “Post Provider ECMM”)
.post(apiLink + “providers”)
.header(“Content-Type”, “multipart/mixed”)
.header(“client_id”, “”)
.header(“Authorization”, “”)
.header(“correlation_id”, “”)
.header(“actor”, “”)
.header(“scope”, “”)

.bodyPart(ByteArrayBodyPart(readPayLoad())
.contentType(“application/vnd.uhc.provider-ecmm.xml”).contentId(“apimessage”)
)

From the simulation i was calling one java method “readPayload()” to get the payload data dynamically but problem was this method was calling once at the time of simulation start up. i was not able to pass different data for multiple users…

can you please help me out on this

2

If you want to dynamically modify body in your request, then you should look at ELFileBody.

http://gatling.io/docs/2.1.7/http/http_request.html?highlight=elfilebody#request-body