Get auth token from postman

postmanGetAuthToken.js

pm.test("Status code is 200", function () {
    pm.response.to.have.status(200);
});

// check whether the request hast the Auth Token (auth_token)
var token;
pm.test("Body has auth_token", function () {
    pm.expect(pm.response.text()).to.include("auth_token");
    token = pm.response.json().auth_token
});

// save the auth token to an environment varaible AUTH_TOKEN
pm.test("Save token", function () {
    pm.expect(token).to.be.a("string");
    pm.environment.set("AUTH_TOKEN", token); 
});