I post using https://MYSITE/wp-json/wp/v2/job-listings?add&title=”added from app”
You also need authentication, I use JWT Authorisation plugin
you first call https://www.hireme.vip/wp-json/jwt-auth/v1/token?username=YOUR_USER&password=YOUR_PASWORD with your JWT_AUTH_SECRET_KEY in the HEADER
It will then respond with a JWT_AUTH_KEY that you use in all other calls requiring authorisation.
Best
Chris