lukaszraczylo/graphql-monitoring-proxy
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Add metrics for cached queries + cache hit/miss

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Lukasz Raczylo
2024-06-11 00:03:05 +01:00
parent 371d51f96f
commit a01a4da9b5
3 changed files with 10 additions and 0 deletions
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server.go
+3
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@@ -152,11 +152,13 @@ func processGraphQLRequest(c *fiber.Ctx) error {
queryCacheHash = calculateHash(c)
if cachedResponse := cacheLookup(queryCacheHash); cachedResponse != nil {
cfg.Monitoring.Increment(libpack_monitoring.MetricsCacheHit, nil)
cfg.Logger.Debug("Cache hit", map[string]interface{}{"hash": queryCacheHash, "user_id": extractedUserID, "request_uuid": c.Locals("request_uuid")})
c.Request().Header.Add("X-Cache-Hit", "true")
c.Send(cachedResponse)
wasCached = true
} else {
cfg.Monitoring.Increment(libpack_monitoring.MetricsCacheMiss, nil)
cfg.Logger.Debug("Cache miss", map[string]interface{}{"hash": queryCacheHash, "user_id": extractedUserID, "request_uuid": c.Locals("request_uuid")})
proxyAndCacheTheRequest(c, queryCacheHash, parsedResult.cacheTime, parsedResult.activeEndpoint)
}
@@ -182,6 +184,7 @@ func proxyAndCacheTheRequest(c *fiber.Ctx, queryCacheHash string, cacheTime int,
return
}
cfg.Cache.CacheClient.Set(queryCacheHash, c.Response().Body(), time.Duration(cacheTime)*time.Second)
cfg.Monitoring.Increment(libpack_monitoring.MetricsQueriesCached, nil)
c.Send(c.Response().Body())
}