gistfile1.txt

// application/json !== "application/json"

# Working
POST http://172.18.0.2:8080/api/auth/login
Content-Type: application/json

{
    "email": "marcinemail@somepost.com",
    "password": "12345"
}

# Not working - the req.body.email is undefined

POST http://172.18.0.2:8080/api/auth/login
Content-Type: "application/json"

{
    "email": "marcinemail@somepost.com",
    "password": "12345"
}