Java EE 8 and Angular

Exchanging tokens

The client needs to send the JWT token as part of every request to the server. This is typically done by setting the token in the Authorization header. Here's a sample request header:

Authorization: Bearer eyJhbGciOiJIUzI1NiJ9.eyJzdWIiOiJ0ZXN0IiwiaWF0IjoxNTE0NTU3ODA2LCJleHAiOjE1MTQ1NjE0MDZ9.kA2mP2jZN-zbtzAmD1BZWkz7XPlV0NM3gcv6RLbOuf0

To set this as part of the HTTP call from Angular, we have a couple of choices:

• Use an HttpInterceptor so that all outbound HTTP calls can be manipulated to have our token in them. This way, you need not pollute each call in the service code with logic to extract the token and set it in the request header.
• Use the service class to extract the JWT (token) and set it as part of the HTTP call. ...