Add healthcheck endpoint (#170)

internal/db/db.go

@@ -80,3 +80,12 @@ func IsUniqueConstraintViolation(err error) bool {
 	}
 	return false
 }
+
+func Ping() error {
+	sql, err := db.DB()
+	if err != nil {
+		return err
+	}
+
+	return sql.Ping()
+}

internal/web/healthcheck.go

@@ -0,0 +1,24 @@
+package web
+
+import (
+	"github.com/labstack/echo/v4"
+	"github.com/thomiceli/opengist/internal/db"
+	"time"
+)
+
+func healthcheck(ctx echo.Context) error {
+	// Check database connection
+	dbOk := "ok"
+	httpStatus := 200
+
+	err := db.Ping()
+	if err != nil {
+		dbOk = "ko"
+		httpStatus = 503
+	}
+
+	return ctx.JSON(httpStatus, map[string]interface{}{
+		"database": dbOk,
+		"time":     time.Now().Format(time.RFC3339),
+	})
+}

internal/web/server.go

@@ -208,6 +208,8 @@ func NewServer(isDev bool) *Server {
 		g1.GET("/", create, logged)
 		g1.POST("/", processCreate, logged)
 
+		g1.GET("/healthcheck", healthcheck)
+
 		g1.GET("/register", register)
 		g1.POST("/register", processRegister)
 		g1.GET("/login", login)

internal/web/util.go

@@ -168,7 +168,7 @@ func validateReservedKeywords(fl validator.FieldLevel) bool {
 	name := fl.Field().String()
 
 	restrictedNames := map[string]struct{}{}
-	for _, restrictedName := range []string{"assets", "register", "login", "logout", "settings", "admin-panel", "all", "search", "init"} {
+	for _, restrictedName := range []string{"assets", "register", "login", "logout", "settings", "admin-panel", "all", "search", "init", "healthcheck"} {
 		restrictedNames[restrictedName] = struct{}{}
 	}