Merge pull request #274 from lowcoder-org/configurable_ratelimit_threshold

Make default API rate limit configurable

Author: FalkWolsky

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

@@ -6,6 +6,7 @@
 import lombok.extern.slf4j.Slf4j;
 import org.lowcoder.sdk.config.dynamic.ConfigCenter;
 import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.beans.factory.annotation.Value;
 import org.springframework.core.Ordered;
 import org.springframework.http.server.reactive.ServerHttpRequest;
 import org.springframework.stereotype.Component;
@@ -30,8 +31,10 @@
 @Component
 public class ThrottlingFilter implements WebFilter, Ordered {
 
-    private static final int DEFAULT_RATE_THRESHOLD = 50;
+	@Value("${default.apiRateLimit:50}")
+    private int defaultApiRateLimit;
 
+    
     private final Map<String, RateLimiterWrapper> rateLimiterMap = new ConcurrentHashMap<>();
     private Supplier<Map<String, Integer>> urlRateLimiter;
 
@@ -52,7 +55,7 @@ public Mono<Void> filter(@Nonnull ServerWebExchange exchange, @Nonnull WebFilter
 
         RateLimiterWrapper rateLimiter = rateLimiterMap.compute(requestUrl,
                 (url, currentLimiter) -> {
-                    int targetRate = urlRateLimiter.get().getOrDefault(url, DEFAULT_RATE_THRESHOLD);
+                    int targetRate = urlRateLimiter.get().getOrDefault(url, defaultApiRateLimit);
                     if (currentLimiter == null) {
                         return RateLimiterWrapper.create(targetRate);
                     }

server/api-service/lowcoder-server/src/main/resources/application-lowcoder.yml

@@ -29,6 +29,7 @@ default:
   org-group-count: 100
   org-app-count: 1000
   developer-count: 50
+  api-rate-limit: 50 
 
 common:
   cookie-name: LOCAL_LOWCODER_TOKEN

server/api-service/lowcoder-server/src/main/resources/selfhost/ce/application.yml

@@ -29,6 +29,7 @@ default:
   org-group-count: 100
   org-app-count: 1000
   developer-count: 50
+  api-rate-limit: 50
 
 common:
   cookie-name: LOWCODER_CE_SELFHOST_TOKEN