Escape response in karate framework [duplicate] - karate

Question

For some reason a variable with a / character get converted to a \/, how do I prevent this?
I start a echo server that listens on localhost:3000 by running npx http-echo-server
I execute the following:
code:
* def CHALLENGE_USER = '/abc/user'
* def loginJson = { user: '#(CHALLENGE_USER)' , name: 'Some Name'}
* print loginJson
* def TEST_URL = 'http://localhost:3000'
Given url TEST_URL+'/session/loginresponse'
And header Content-Type = 'application/json'
And request loginResponseJson
And method put
Then status 200
It prints { "user": "/abc/user", "name": "Some Name" } like I expect.
The http server logs show "--> {"user":"/schemes/ATT_5_55/CH_1","name":"Some Name"}"
Karate shows the result of the echo {"user":"\/abc\/user","name":"Some Name"}
I have tried:
def CHALLENGE_USER = '/abc/user'
def CHALLENGE_USER = "/abc/user"
def CHALLENGE_USER = '/abc/user'
def CHALLENGE_USER = '//abc//user'
also setting the variable after the fact does not work:
* def loginJson = { name: 'Some Name'}
* loginJson.user = CHALLENGE_USER

Answer 1

Yes this is legal as per the JSON spec: JSON: why are forward slashes escaped?
And the Java libraries we use does that.
Does your server have a problem ? If so - then you have a bug that Karate surfaced.
And if you really want to have full control over the request, please use text but IMO it may be a waste of time: https://stackoverflow.com/a/68344856/143475

Answer 2

A nasty workaround, please forgive me Peter Thomas.
You can convert the json to a string and then remove the \ characters.
I only have one use case for this thank goodness.
* def CHALLENGE_USER = '/abc/user'
* def loginJson = { user: '#(CHALLENGE_USER)' , name: 'Some Name'}
* string json = loginJson
* def loginJsonText = json.replaceAll("\\", "")
* print loginJson
* def TEST_URL = 'http://localhost:3000'
Given url TEST_URL+'/session/loginresponse'
And header Content-Type = 'application/json'
And request loginJsonText
And method put
Then status 200