April 2018
Intermediate to advanced
432 pages
10h 38m
English
In addition to the filters installed by default, we may create our custom implementations. Each of them has to implement the ZuulFilter interface and its four methods. These methods are responsible for setting the type of filter (filterType), determining the order of filter execution between other filtering with the same type (filterOrder), enabling or disabling the filter (shouldFilter) and finally the filter logic implementation (run). Here's an example implementation that adds the X-Response-ID header to the response:
public class AddResponseIDHeaderFilter extends ZuulFilter { private int id = 1; @Override public String filterType() { return "post"; } @Override public int filterOrder() { return 10; } @Override