Forum Discussion

Garry_Gearhart's avatar
Garry_Gearhart
4 years ago

Postman API variable use

Has anyone successfully used variables with POST calls in Postman? I'm successful with basic tests creating groups and devices (no vars) but once variables are introduced in the place of values in ...
JonR's avatar
JonR
3 years ago

I have what seems like a similar issue with a get operation getting a device by ID. When I set the ID manually in the request it returns a single device as expected. When I set the ID with an environment variable authentication fails with a 1401 code returned. The headers and request path look identical in both cases. Was there a resolution found for the original post?

Working request with ID 5 set statically in the request:

{{url}}/device/devices/5 sends: GET https://(company).logicmonitor.com/santaba/rest/device/devices/5

Broken request with id variable set to 5:

{{url}}/device/devices/{{id}} sends: GET https://(company).logicmonitor.com/santaba/rest/device/devices/5

I tried modifying the pre-request script as well and had the exact same results. Script modification: 

var id = pm.environment.get('id');
var request_vars = (http_verb == 'GET'||http_verb == 'DELETE') ?
http_verb + epoch + resource_path + id: http_verb + epoch + request.data + resource_path;