go__sqs_demo/back/web/queue.go

package web

import (
	"fmt"
	"log"
	"net/http"
	"time"

	"github.com/gin-contrib/sessions"
	"github.com/gin-gonic/gin"

	"code.osinet.fr/fgm/sqs_demo/back/services/redriver"
)

func makeQueueHandler(rd redriver.Redriver) gin.HandlerFunc {
	return func(c *gin.Context) {
		ctx := c.Request.Context()
		qName := c.Param("name")

		sess := sessions.Default(c)
		flashes := sess.Flashes()
		sess.Clear()
		sess.AddFlash(fmt.Sprintf("Previous info acquired at: %v", time.Now()))
		sess.Save()

		t0 := time.Now()
		qi, err := rd.GetQueueInfo(ctx, qName)
		if err != nil {
			log.Printf("failed getting info for queue %q: %v", qName, err)
			c.JSON(http.StatusInternalServerError, nil)
			return
		}
		infoLatency := time.Since(t0)
		items, err := rd.GetQueueItems(ctx, qName)
		if err != nil {
			log.Printf("failed getting items for queue %q: %v", qName, err)
			c.JSON(http.StatusInternalServerError, nil)
			return
		}
		itemsLatency := time.Since(t0) - infoLatency
		c.HTML(http.StatusOK, "queue-get", map[string]any{
			"flashes": flashes,
			"info":    qi,
			"items":   items,
			"latency": map[string]time.Duration{
				"info":  infoLatency,
				"items": itemsLatency,
			},
		})
	}
}