Unable to post from postman

[gabrielchase]

I have a problem posting on postman, my headers are Content-Type: application/json and my body (I've tested both form-data and form-url-encoded) key=value are: username: chaofanman password:password and it doesn't work. I always get {"code":400,"message":"Missing Username or Password"}. However, when i post using httpie it is totally find. It also works on raw as a json however. What am i doing wrong?

[345161974]

@gabrielchase
maybe you should check the postman setting.
with postman I get the token. below is the setting.