error 404 by using xray rest test repository api while creating a folder

[Bruno Bernadet]

hello i try to use xray api under postmann
I use an api token for authentification. My user has the right to create under Jira and the project SCRUM exist with xray enable

i've got this message as result :

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

<status>

    <status-code>404</status-code>

    <message>null for uri: https://atlanticessai.atlassian.net/rest/raven/1.0/api/testrepository/SCRUM/folders/-1</message>

</status>
i try to search on the forum but i dont find a suitable answer. What can i check to find the issue ?
thanks

[Bruno Bernadet]

i seek on the community group and i find that some errors could occur because of the authentification. i try to fix it on postmann but i dont find the correct way. i use api token and i see that a lot of users use mail: api encoded on base64 on the header . i a  a noob with postman so i dont see how in the api how to settle this 

so -what i have to choose in authorization : Api key or bearer token?

- have i to modify the body of the pre request script ?

url:  'https://xray.cloud.getxray.app/api/v2/authenticate',

    method: 'POST',

    header: {

        'content-type': 'application/json',

        client_id: pm.environment.get("client_id"),

        client_secret: pm.environment.get("client_secret") 

    },

    body: {

        mode: 'raw',

        raw: JSON.stringify({ client_id: pm.environment.get("client_id"), client_secret: pm.environment.get("client_secret") })

    }

}, function (err, res) {

    pm.environment.set("AUTH_TOKEN", res.json());

});