oauth curl commands

I have the wordpress rest api and wordpress oauth server plugins setup

and am trying to test authenticating using http://sevengoslings.net/~fangel/oauth-explorer/ everytime the call content is not giving me the oauth token or oauth secret that I need I tried these steps https://ww.wp.xz.cn/support/topic/json-rest-api-from-mobile-app-with-authentication

Enter base url (http(s)://your.domain.com/oauth1
Access token = request
Authorize = authorize
Access_Token = access
Enter your consumer key and secret (leave method as HMAC-SHA1)
Click Get Request Token and you get Call content

I should get this in Call Content Call content now = oauth_token=xxxxxxxxxxxxxxx&oauth_token_secret=xxxxxxxxxxxxxxxxxxxxx&oauth_call_back_confirmed=true

but I only get this

page not found

here they were not able to get 3-legged oauth1.0a to work so they used basic oauth which requires another plugin and is not recommended for production.

I’m looking for two curl commands to get an OAuth grant from the server and another one to trade this grant for an access token+ refresh token.

https://ww.wp.xz.cn/plugins/rest-api/