I keep getting in to a loop of only seeing google's OAUTH documentation when searching for this but I don't want any user interaction. Maybe it's not possible. I want to do something like the code below in a http GET like you do with the maps API and receive a JSON reply
https://www.googleapis.com/admin/directory/v1/users?domain=MYDOMAIN&maxResults=200&key=MYAPIKEY
When I try something like the above I get 401 login required. I'm using vue-resource to make the request if that is relevant.
If it is possible could someone post an example of a correctly formatted request?
Based on the documentation available at https://developers.google.com/admin-sdk/directory/v1/guides/manage-users you should be able to do this with a simple get request however it MUST be authorized with OAUTH 2.
As stated at https://developers.google.com/admin-sdk/directory/v1/guides/authorizing "Your application must use OAuth 2.0 to authorize requests. No other authorization protocols are supported."
I haven't used vue-resource before however I know that the Chrome plugin Postman has an authorization option to target OAUTH2.0 which should be a good place to start and perform a quick proof of concept.
Once you have the proof of concept working and understand how to interact with OAUTH you can look at implementing it in your app.