feat: add possibility to turn off rate limit filter

Author: ludomikula

server/api-service/lowcoder-server/src/main/java/org/lowcoder/api/framework/filter/ThrottlingFilter.java

@@ -1,37 +1,41 @@
 package org.lowcoder.api.framework.filter;
 
-import com.google.common.util.concurrent.RateLimiter;
-import jakarta.annotation.PostConstruct;
-import lombok.Getter;
-import lombok.extern.slf4j.Slf4j;
+import static java.util.Collections.emptyMap;
+import static org.lowcoder.api.framework.filter.FilterOrder.THROTTLING;
+import static org.lowcoder.sdk.exception.BizError.REQUEST_THROTTLED;
+import static org.lowcoder.sdk.util.ExceptionUtils.ofError;
+
+import java.util.Map;
+import java.util.concurrent.ConcurrentHashMap;
+import java.util.function.Supplier;
+
+import javax.annotation.Nonnull;
+
 import org.lowcoder.sdk.config.dynamic.ConfigCenter;
 import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.beans.factory.annotation.Value;
+import org.springframework.boot.autoconfigure.condition.ConditionalOnExpression;
 import org.springframework.core.Ordered;
 import org.springframework.http.server.reactive.ServerHttpRequest;
 import org.springframework.stereotype.Component;
 import org.springframework.web.server.ServerWebExchange;
 import org.springframework.web.server.WebFilter;
 import org.springframework.web.server.WebFilterChain;
-import reactor.core.publisher.Mono;
-
-import javax.annotation.Nonnull;
-import java.util.Map;
-import java.util.concurrent.ConcurrentHashMap;
-import java.util.function.Supplier;
 
-import static java.util.Collections.emptyMap;
-import static org.lowcoder.api.framework.filter.FilterOrder.THROTTLING;
-import static org.lowcoder.sdk.exception.BizError.REQUEST_THROTTLED;
-import static org.lowcoder.sdk.util.ExceptionUtils.ofError;
+import com.google.common.util.concurrent.RateLimiter;
 
+import jakarta.annotation.PostConstruct;
+import lombok.Getter;
+import lombok.extern.slf4j.Slf4j;
+import reactor.core.publisher.Mono;
 
+@ConditionalOnExpression("${default.api-rate-limit:0} > 0")
 @SuppressWarnings("UnstableApiUsage")
 @Slf4j
 @Component
 public class ThrottlingFilter implements WebFilter, Ordered {
 
-	@Value("${default.apiRateLimit:50}")
+	@Value("${default.api-rate-limit}")
     private int defaultApiRateLimit;
 
 
@@ -44,6 +48,7 @@ public class ThrottlingFilter implements WebFilter, Ordered {
     @PostConstruct
     private void init() {
         urlRateLimiter = configCenter.threshold().ofMap("urlRateLimiter", String.class, Integer.class, emptyMap());
+        log.info("API rate limit filter enabled with default rate limit set to: {} requests per second");
     }
 
     @Nonnull