chore: add request validations

internal/api/api.go

@@ -1,6 +1,7 @@
 package api
 
 import (
+	"github.com/go-playground/validator/v10"
 	"github.com/hazemKrimi/crimson-vault/internal/models"
 	"github.com/labstack/echo/v4"
 	"github.com/labstack/echo/v4/middleware"
@@ -14,6 +15,7 @@ type API struct {
 func (api *API) Initialize() {
 	db := &models.DB{}
 	ech := echo.New()
+	ech.Validator = &CustomValidator{validator: validator.New(validator.WithRequiredStructEnabled())}
 
 	db.Connect()
 	db.MigrateClients()

internal/api/client.go

@@ -11,13 +11,17 @@ import (
 )
 
 func (api *API) CreateClientHandler(context echo.Context) error {
-	var body models.CreateClientBody
+	var body models.CreateClientRequestBody
 
 	if err := context.Bind(&body); err != nil {
 		log.Println(fmt.Sprintf("Error creating Client: %v.", err))
 		return context.String(http.StatusBadRequest, "Invalid JSON!")
 	}
 
+	if err := context.Validate(body); err != nil {
+		return err
+	}
+
 	client := api.db.CreateClient(body)
 
 	log.Println(fmt.Sprintf("Client created with ID %d.", client.ID))
@@ -71,13 +75,17 @@ func (api *API) UpdateClientHandler(context echo.Context) error {
 		return context.String(http.StatusInternalServerError, "Unexpected error updating Client!")
 	}
 
-	var body models.UpdateClientBody
+	var body models.UpdateClientRequestBody
 
 	if err := context.Bind(&body); err != nil {
 		log.Println(fmt.Sprintf("Error updating Client: %v.", err))
 		return context.String(http.StatusBadRequest, "Invalid JSON!")
 	}
 
+	if err := context.Validate(body); err != nil {
+		return err
+	}
+
 	var client models.Client
 
 	if err := api.db.UpdateClient(id, body, &client); err != nil {

internal/api/validator.go

@@ -0,0 +1,19 @@
+package api
+
+import (
+	"net/http"
+
+	"github.com/go-playground/validator/v10"
+	"github.com/labstack/echo/v4"
+)
+
+type CustomValidator struct {
+	validator *validator.Validate
+}
+
+func (validator *CustomValidator) Validate(i any) error {
+	if err := validator.validator.Struct(i); err != nil {
+		return echo.NewHTTPError(http.StatusBadRequest, err.Error())
+	}
+	return nil
+}