Adds health check and test

routes/health.go

@@ -0,0 +1,58 @@
+package routes
+
+import (
+	"encoding/json"
+	"gitea.deepak.science/deepak/gogmagog/models"
+	"github.com/go-chi/chi"
+	"net/http"
+)
+
+func newHealthRouter(m *models.Model) http.Handler {
+	router := chi.NewRouter()
+	router.Get("/", getHealthFunc(m))
+	return router
+}
+
+type healthCheck struct {
+	Name    string `json:"name"`
+	Healthy bool   `json:"healthy"`
+	Message string `json:"message"`
+}
+
+func getHealthFunc(m *models.Model) http.HandlerFunc {
+	return func(w http.ResponseWriter, r *http.Request) {
+		var healths []*healthCheck
+
+		healths = append(healths, dbHealth(m))
+
+		code := http.StatusOK
+		for _, h := range healths {
+			if !h.Healthy {
+				code = http.StatusInternalServerError
+				break
+			}
+		}
+
+		w.WriteHeader(code)
+		w.Header().Add("Content-Type", "application/json")
+		if err := json.NewEncoder(w).Encode(healths); err != nil {
+			serverError(w, err)
+		}
+	}
+}
+
+func dbHealth(m *models.Model) *healthCheck {
+	errMessage := ""
+	health := true
+	name := "Store"
+	err := m.Healthy()
+	if err != nil {
+		errMessage = err.Error()
+		health = false
+	}
+	return &healthCheck{
+		Name:    name,
+		Healthy: health,
+		Message: errMessage,
+	}
+}