How to trim a string in artillery that contains a "\n" char? - csv

Question

After successfully extracting username and password from a csv as shown in the documentation, I noticed that my username was in the following format: "\ntomer#mail.com". How can I erase the "\n" char in artillery?
P.S.
The way to check your HTTP request is (I was unable to find documentation for this):
In cmd do the following command:
set DEBUG=http,http:capture,http:response
Afterwards, every regular artillery request will give you a http debug mode as following:
http request: {
"url": "https://host.com/api/user/login",
"method": "POST",
"headers": {
"user-agent": "Artillery (https://artillery.io)"
},
"json": {
"email": "\ntomer#mail.com",
"password":"9526e7bb980ba35a1788d46d4a2aaaaa3d941d2efc8a4fcb1402d1"
}
}
}

Answer 1

I solved the problem by using JS as follows (solution is based on this)
In the config section of the yml I set that the JS file to be called would be login.js by adding the following line:
processor: "./js/login.js"
When sending my login request I called the "setJSONBody" function as following:
- post:
url: "https://dev-api.host.com/api/user/login"
beforeRequest: "setJSONBody"
json:
email: "{{ user }}"
password: "{{ password }}"
Here is my login.js file:
//
// my-functions.js
//
module.exports = {
setJSONBody: setJSONBody
}
function setJSONBody(requestParams, context, ee, next) {
context.vars.user = context.vars.user.replace('\n',''); //erases from user name any \n char
return next(); // MUST be called for the scenario to continue
}