style: fixes issues highlighted in review

features/schools/unwatch_school.go

@@ -5,12 +5,10 @@ import (
 	"confesi/lib/response"
 	"confesi/lib/utils"
 	"confesi/lib/validation"
-	"fmt"
 	"net/http"
 
 	"firebase.google.com/go/auth"
 	"github.com/gin-gonic/gin"
-	"github.com/go-playground/validator/v10"
 )
 
 func (h *handler) unwatchSchool(c *gin.Context, token *auth.Token, req validation.WatchSchool) error {
@@ -29,14 +27,8 @@ func (h *handler) handleUnwatchSchool(c *gin.Context) {
 	// extract request
 	var req validation.WatchSchool
 
-	// create validator
-	validator := validator.New()
-
-	binding := &validation.DefaultBinding{
-		Validator: validator,
-	}
-	if err := binding.Bind(c.Request, &req); err != nil {
-		response.New(http.StatusBadRequest).Err(fmt.Sprintf("failed validation: %v", err)).Send(c)
+	err := utils.New(c).Validate(&req)
+	if err != nil {
 		return
 	}
 

features/schools/watch_school.go

@@ -6,12 +6,10 @@ import (
 	"confesi/lib/utils"
 	"confesi/lib/validation"
 	"errors"
-	"fmt"
 	"net/http"
 
 	"firebase.google.com/go/auth"
 	"github.com/gin-gonic/gin"
-	"github.com/go-playground/validator/v10"
 	"github.com/jackc/pgx/v5/pgconn"
 )
 
@@ -45,14 +43,8 @@ func (h *handler) handleWatchSchool(c *gin.Context) {
 	// extract request
 	var req validation.WatchSchool
 
-	// create validator
-	validator := validator.New()
-
-	binding := &validation.DefaultBinding{
-		Validator: validator,
-	}
-	if err := binding.Bind(c.Request, &req); err != nil {
-		response.New(http.StatusBadRequest).Err(fmt.Sprintf("failed validation: %v", err)).Send(c)
+	err := utils.New(c).Validate(&req)
+	if err != nil {
 		return
 	}