LocalAI/core/http/endpoints/localai/metrics.go

44 lines
1.0 KiB
Go

package localai
import (
"time"
"github.com/go-skynet/LocalAI/core/services"
"github.com/gofiber/fiber/v2"
"github.com/gofiber/fiber/v2/middleware/adaptor"
"github.com/prometheus/client_golang/prometheus/promhttp"
)
func LocalAIMetricsEndpoint() fiber.Handler {
return adaptor.HTTPHandler(promhttp.Handler())
}
type apiMiddlewareConfig struct {
Filter func(c *fiber.Ctx) bool
metricsService *services.LocalAIMetricsService
}
func LocalAIMetricsAPIMiddleware(metrics *services.LocalAIMetricsService) fiber.Handler {
cfg := apiMiddlewareConfig{
metricsService: metrics,
Filter: func(c *fiber.Ctx) bool {
return c.Path() == "/metrics"
},
}
return func(c *fiber.Ctx) error {
if cfg.Filter != nil && cfg.Filter(c) {
return c.Next()
}
path := c.Path()
method := c.Method()
start := time.Now()
err := c.Next()
elapsed := float64(time.Since(start)) / float64(time.Second)
cfg.metricsService.ObserveAPICall(method, path, elapsed)
return err
}
}