adding a healthcheck endpoint that confirms communication with influxdb and sqlite.

ref: #381

webapp/backend/pkg/web/handler/health_check.go

@@ -0,0 +1,29 @@
+package handler
+
+import (
+	"github.com/analogj/scrutiny/webapp/backend/pkg/database"
+	"github.com/gin-gonic/gin"
+	"github.com/sirupsen/logrus"
+	"net/http"
+)
+
+func HealthCheck(c *gin.Context) {
+	logger := c.MustGet("LOGGER").(*logrus.Entry)
+	deviceRepo := c.MustGet("DEVICE_REPOSITORY").(database.DeviceRepo)
+	logger.Infof("Checking Influxdb & Sqlite health")
+
+	//check sqlite and influxdb health
+	err := deviceRepo.HealthCheck(c)
+	if err != nil {
+		logger.Errorln("An error occurred during healthcheck", err)
+		c.JSON(http.StatusInternalServerError, gin.H{"success": false, "error": err.Error()})
+		return
+	}
+
+	//TODO:
+	// check if the /web folder is populated.
+
+	c.JSON(http.StatusOK, gin.H{
+		"success": true,
+	})
+}