add status image

Shareed2k · Mar 23, 2020 · d24c11f · d24c11f
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diff --git a/README.md b/README.md
@@ -1,5 +1,7 @@
 # Rate limiting with few algorithms
 
+[![Build Status](https://travis-ci.org/Shareed2k/go_limiter.svg?branch=master)](github.com/shareed2k/go_limiter)
+
 This package is based on [go-redis/redis_rate](github.com/go-redis/redis_rate) and implements GCRA (aka leaky bucket) for rate limiting based on Redis. The code requires Redis version 3.2 or newer since it relies on replicate_commands feature.
 
 ## Installation

diff --git a/simple_lua.go b/simple_lua.go
@@ -40,11 +40,11 @@ local del = delta()
 local count = allow_check_card()
 
 if count >= rate then
-    return {0, count, tostring(del)}
+    return {0, rate-count, tostring(del)}
 end
 
 redis.call("ZADD", rate_limit_key, now_nanos, now_nanos)
 redis.call("EXPIRE", rate_limit_key, period)
 
-return {1, count+1, tostring(del)}
+return {1, rate-(count+1), tostring(del)}
 `)