REST API Required to provide Auth information

[Kent17]

Hi,

I'm new to servicenow and I'm trying to fetch a ticket's details using the REST api. I took a look at the docs particularly this

https://developer.servicenow.com/dev.do#!/reference/api/orlando/rest/c_TableAPI#r_TableAPI-GETid

I tried to call the api using curl 

curl "https://<our-instance>.service-now.com/api/now/table/change_request/166dea65db965050c055927adb9619f6" \
--request GET \
--header "Accept:application/json" \
--user 'username':'password'

But it returned an error 

{"error":{"message":"User Not Authenticated","detail":"Required to provide Auth information"},"status":"failure"}

Can anyone help me with this or point me in the right direction on how to properly use servicenow REST APIs? Like is there a permission I need to set to my account or do I need to generate a token instead of using password? 

[midaswa]

I was getting exactly the same error, error went away when I changed the format of the line

--user 'username':'password'

to

-u "username":"password"

Hope it helps!

Best regards

Mike