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Add the prometheus query time metric back #18

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Merged
r-vdp merged 1 commit into from
Jan 4, 2026
Merged

Add the prometheus query time metric back #18

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8 changes: 0 additions & 8 deletions api/api.go
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Original file line number Diff line number Diff line change
Expand Up @@ -9,16 +9,8 @@ import (

"github.com/Arkiv-Network/query-api/sqlstore"
"github.com/Arkiv-Network/sqlite-store/query"
"github.com/prometheus/client_golang/prometheus"
"github.com/prometheus/client_golang/prometheus/promauto"
)

var queryDuration = promauto.NewHistogram(prometheus.HistogramOpts{
Name: "arkiv_query_api_query_duration_seconds",
Help: "Duration of database queries in seconds",
Buckets: prometheus.DefBuckets, // Default: .005, .01, .025, .05, .1, .25, .5, 1, 2.5, 5, 10
})

type arkivAPI struct {
store *sqlstore.SQLStore
log *slog.Logger
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9 changes: 9 additions & 0 deletions sqlstore/sqlstore.go
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Original file line number Diff line number Diff line change
Expand Up @@ -12,10 +12,18 @@ import (

"github.com/Arkiv-Network/sqlite-store/query"
"github.com/ethereum/go-ethereum/common"
"github.com/prometheus/client_golang/prometheus"
"github.com/prometheus/client_golang/prometheus/promauto"
)

var ErrStopIteration = errors.New("stop iteration")

var queryDuration = promauto.NewHistogram(prometheus.HistogramOpts{
Name: "arkiv_query_api_query_duration_seconds",
Help: "Duration of database queries in seconds",
Buckets: prometheus.DefBuckets, // Default: .005, .01, .025, .05, .1, .25, .5, 1, 2.5, 5, 10
})

type SQLStore struct {
log *slog.Logger

Expand Down Expand Up @@ -194,6 +202,7 @@ func (s *SQLStore) QueryEntitiesInternalIterator(
startTime := time.Now()
defer func() {
elapsed := time.Since(startTime)
queryDuration.Observe(elapsed.Seconds())
s.log.Info("query execution time", "seconds", elapsed.Seconds(), "query", originalQuery)
}()

Expand Down