pm.test('get single collection', () => {
pm.expect(error).to.equal(null);
pm.expect(response).to.have.property('code', 200);
pm.expect(response).to.have.property('status', 'OK');
pm.expect(response.json().collection.auth.type, 'check collection authorization').to.equal("apikey")
get single workspace | AssertionError: expected { Object (id, _details, ...) } to have property 'code' of 200, but got 401
get single collection | AssertionError: expected { Object (id, _details, ...) } to have property 'code' of 200, but got 401
get single environment | AssertionError: expected { Object (id, _details, ...) } to have property 'code' of 200, but got 401
You need to send Authorization details from the Authorization tab which you can see in the image below.