adding prefilter for logging requests

src/main/java/com/upsmf/gateway/filter/pre/CommonPreFilter.java

+package com.upsmf.gateway.filter.pre;
+
+import lombok.extern.slf4j.Slf4j;
+import org.springframework.cloud.gateway.filter.GatewayFilterChain;
+import org.springframework.cloud.gateway.filter.GlobalFilter;
+import org.springframework.core.Ordered;
+import org.springframework.stereotype.Component;
+import org.springframework.web.server.ServerWebExchange;
+import reactor.core.publisher.Mono;
+
+@Slf4j
+@Component
+public class CommonPreFilter implements GlobalFilter, Ordered {
+
+    @Override
+    public Mono<Void> filter(
+            ServerWebExchange exchange,
+            GatewayFilterChain chain) {
+        log.debug("Global Pre Filter executed || Request - {} ", exchange.getRequest());
+        log.debug("Global Pre Filter executed || Request Headers - {} ", exchange.getRequest().getHeaders());
+        log.info("Global Pre Filter executed || Path - {} ", exchange.getRequest().getPath().value());
+        return chain.filter(exchange);
+    }
+
+    @Override
+    public int getOrder() {
+        return -1;
+    }
+
+}
+