Добавил обновление метрик (наверно)

go.mod

@@ -11,6 +11,7 @@ require gopkg.in/yaml.v3 v3.0.1
 require (
 	github.com/beorn7/perks v1.0.1 // indirect
 	github.com/cespare/xxhash/v2 v2.3.0 // indirect
+	github.com/klauspost/compress v1.17.9 // indirect
 	github.com/munnerz/goautoneg v0.0.0-20191010083416-a7dc8b61c822 // indirect
 	github.com/prometheus/client_model v0.6.1 // indirect
 	github.com/prometheus/common v0.62.0 // indirect

main.go

@@ -6,6 +6,7 @@ import (
 	"log"
 	"net/http"
 	"pleroma_stats_exporter/config"
+	"time"
 
 	"github.com/prometheus/client_golang/prometheus"
 	"github.com/prometheus/client_golang/prometheus/promhttp"
@@ -58,16 +59,26 @@ func unmJson(jsonString string) map[string]any {
 	return decodedJson
 }
 
-func main() {
-	confFile := config.UnmYamlConfig("config.yaml")
-
-	reg := prometheus.NewRegistry()
-	instanceMetrics := SetMetricsOpts(reg)
+func updateMetrics(instanceMetrics *metrics, confFile config.InstanceVars) {
 	instanceStat := unmJson(getJson("https://" + confFile.Target.Instance + "/api/v1/instance"))["stats"]
 	instanceCount := instanceStat.(map[string]interface{})
 	userFollowers := unmJson(getJson("https://" + confFile.Target.Instance + "/api/v1/accounts/" + confFile.Target.UserID))["followers_count"]
 	instanceMetrics.InstancesCount.Set(instanceCount["domain_count"].(float64))
 	instanceMetrics.FollowersCount.Set(userFollowers.(float64))
+}
+
+func main() {
+	confFile := config.UnmYamlConfig("config.yaml")
+
+	reg := prometheus.NewRegistry()
+	instanceMetrics := SetMetricsOpts(reg)
+
+	go func() {
+		for {
+			updateMetrics(instanceMetrics, confFile)
+			time.Sleep(5 * time.Minute)
+		}
+	}()
 
 	http.Handle("/metrics", promhttp.HandlerFor(reg, promhttp.HandlerOpts{Registry: reg}))
 	log.Fatal(http.ListenAndServe(confFile.Exporter.Listen+":"+confFile.Exporter.Port, nil))