In my Spring boot project, I have made some some RESTful APIs. Now, for each request in my APIs, I want to set a specific header like below below-
If the Http request is called with that specific header name and header value, only then it will show response code ok(200) otherwise it will show some other response code.
I need one single configuration to fix that specific header for each request in my project. So, I need some suggestion about the procedure to follow to solve this issue.
I think in these kind of scenarios if you want to handle them in single point filters are good choices
I hope below code can give you the idea how to use filter to solve your problem:
import org.springframework.web.filter.OncePerRequestFilter; import javax.servlet.FilterChain; import javax.servlet.ServletException; import javax.servlet.http.HttpServletRequest; import javax.servlet.http.HttpServletResponse; import java.io.IOException; public class HeaderCheckerFilter extends OncePerRequestFilter { @Override protected void doFilterInternal(HttpServletRequest request, HttpServletResponse response, FilterChain filterChain) throws ServletException, IOException { String header = request.getHeader("MyHeader"); if (header != null && header.equals("HeaderValue")) { filterChain.doFilter(request, response); } else { response.getWriter().println("invalid request"); } } }