Description
The rate limiter module fails to compile due to two critical syntax/declaration issues:
- Duplicate Declaration:
getRedis is imported from ./redis but is redefined as a local function, causing a duplicate declaration error.
- Invalid Multiple Catches:
checkRateLimit contains multiple sequential catch blocks on a single try statement, which is invalid JavaScript syntax.
- Reference Error: The error handling block calls
checkInMemoryFallback, but the defined fallback function is named checkRateLimitFallback.
Code Location
// Line 2: duplicate import
import { getRedis } from "./redis";
// Line 30: duplicate definition
function getRedis() { ... }
// Line 150-226: invalid syntax
try {
...
} catch (mongoErr) {
...
} catch (err) {
...
}Impact
Any routes importing the rate limiter completely fail to parse and build, leading to application crashes and test suite failures.
Recommended Fix
Delete the duplicate local definition of getRedis and clean up the nested/multiple catch block structure in checkRateLimit:
export async function checkRateLimit(userId) {
const now = Date.now();
const redis = getRedis();
if (!redis) {
return checkRateLimitFallback(userId);
}
try {
const windowStart = now - RATE_LIMIT_WINDOW_MS;
const redisKey = `rate_limit:user:${userId}`;
const pipeline = redis.pipeline();
pipeline.zremrangebyscore(redisKey, 0, windowStart);
pipeline.zcard(redisKey);
const uniqueMemberId = `${now}_${Math.random().toString(36).substring(2, 8)}`;
pipeline.zadd(redisKey, { score: now, member: uniqueMemberId });
pipeline.pexpire(redisKey, RATE_LIMIT_WINDOW_MS);
const results = await pipeline.exec();
const currentRequestCount = results[1];
if (currentRequestCount >= MAX_REQUESTS_PER_WINDOW) {
await redis.zrem(redisKey, uniqueMemberId);
return { allowed: false, remaining: 0 };
}
return {
allowed: true,
remaining: Math.max(0, MAX_REQUESTS_PER_WINDOW - currentRequestCount - 1),
};
} catch (err) {
const errMsg = err instanceof Error ? err.message : String(err);
logger.error("Rate Limiter: Redis failed, tripping Circuit Breaker", { error: errMsg, userId });
return checkRateLimitFallback(userId);
}
}
Description
The rate limiter module fails to compile due to two critical syntax/declaration issues:
getRedisis imported from./redisbut is redefined as a local function, causing a duplicate declaration error.checkRateLimitcontains multiple sequentialcatchblocks on a singletrystatement, which is invalid JavaScript syntax.checkInMemoryFallback, but the defined fallback function is namedcheckRateLimitFallback.Code Location
lib/rateLimit.jsImpact
Any routes importing the rate limiter completely fail to parse and build, leading to application crashes and test suite failures.
Recommended Fix
Delete the duplicate local definition of
getRedisand clean up the nested/multiplecatchblock structure incheckRateLimit: