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Fix device registration error mapping for invalid user IDs.

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Validate device registration input and translate devices_user_fk violations into a clear bad-request response so invalid auth contexts no longer return opaque 500 errors.

Co-authored-by: Cursor <cursoragent@cursor.com>
This commit is contained in:
Yared Yemane 2026-05-11 08:32:42 -07:00
parent 6a4fe68628
commit b2a72c2f6e
1 changed files with 17 additions and 1 deletions
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18
internal/web_server/handlers/notification_handler.go
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@ -6,6 +6,7 @@ import (
"bufio"
"context"
"encoding/json"
"errors"
"fmt"
"io"
"net"
@ -16,6 +17,7 @@ import (
"github.com/gofiber/fiber/v2"
"github.com/gorilla/websocket"
"github.com/jackc/pgx/v5/pgconn"
"github.com/resend/resend-go/v2"
"go.uber.org/zap"
)
@ -111,7 +113,7 @@ type hijackResponseWriter struct {
h http.Header
}
func (w *hijackResponseWriter) Header() http.Header { return w.h }
func (w *hijackResponseWriter) Header() http.Header { return w.h }
func (w *hijackResponseWriter) WriteHeader(statusCode int) {}
func (w *hijackResponseWriter) Write(b []byte) (int, error) { return w.conn.Write(b) }
func (w *hijackResponseWriter) Hijack() (net.Conn, *bufio.ReadWriter, error) {
@ -662,6 +664,12 @@ func (h *Handler) RegisterDeviceToken(c *fiber.Ctx) error {
)
return fiber.NewError(fiber.StatusBadRequest, "Invalid request body")
}
if valErrs, ok := h.validator.Validate(c, req); !ok {
return c.Status(fiber.StatusBadRequest).JSON(domain.ErrorResponse{
Message: "Validation failed",
Error: firstValidationError(valErrs),
})
}
userID, ok := c.Locals("user_id").(int64)
if !ok || userID == 0 {
@ -673,6 +681,14 @@ func (h *Handler) RegisterDeviceToken(c *fiber.Ctx) error {
}
if err := h.userSvc.RegisterDevice(c.Context(), userID, req.DeviceToken, req.Platform); err != nil {
var pgErr *pgconn.PgError
if errors.As(err, &pgErr) && pgErr.Code == "23503" && pgErr.ConstraintName == "devices_user_fk" {
return c.Status(fiber.StatusBadRequest).JSON(domain.ErrorResponse{
Message: "Invalid authenticated user",
Error: "authenticated user does not exist in users table",
})
}
h.mongoLoggerSvc.Error("[NotificationHandler.RegisterDeviceToken] Failed to register device token",
zap.Int64("userID", userID),
zap.String("platform", req.Platform),