How to access Xray Rest API from POSTMAN?

[neha juneja]

I have installed Jira (server+DC) Trial version and then install Xray.

I am trying basic GET request from POSTMAN

When I am doing below, Trying to GET precondition

https://team-16697129369014.atlassian.net/rest/api/2/issue/PI-9

I am getting the response correct 

But when I am trying to find the test cases associated with above precondition

https://team-16697129369014.atlassian.net/rest/raven/2.0/api/precondition/PI-9/test

Getting response below:-

<?xml version="1.0" encoding="UTF-8" standalone="yes"?>

<status>

    <status-code>404</status-code>

    <message>null for uri: https://team-16697129369014.atlassian.net/rest/raven/2.0/api/precondition/PI-9/test</message>

</status>

Using basic authentication with Username and JIRA email and password as API token

for both the above cases

Can anyone please help here