Nodejs: Authentication with JWT

What is the full meaning of JWT?

what method encodes an object with jwt?

To retrieve information from a JWT token, what method do we use?

When making an API request to a protected route, where is the token placed as part of the request

What authentication type can we use when passing a token(jwt)?

How can we invalidate a token

As part of the JWT token, what makes the token unique?

Why do we return token on Sign ups and logins

Which component do we use to verify the jwt token from the headers

Which package can we use to encrypt user passwords