Getting WordPress login Required post Content via Jwt Authentication

I need your Help,

i am beginner developer, i have used jwt plugin for Authentication, i have a website which i have a plugin(Shortcuts) which stop user to view post content, but when i am calling it to my ionic project it, says please login, so would you please tell me how to authenticate my posts so that i can view it on my ionic app.
i will really appreciate your help!! Thanks in Advance!!