Theo's Typesafe Cult•2y ago

Server Side business rules validation

The context: I need to confirm a booking: So the user just pressed a button on the browser to confirm the booking Then I just need to update the booking status. But I'd like to perform some validation before. is this the right way to achieve that?

export const confirmBooking = () => {
  return protectedProcedure.input(z.string().uuid()).mutation(async ({ input, ctx }) => {
    // fetch the booking object 
    // perform validation
    // reject if any error

    return await ctx.db.update(bookings)
      .set({ status: 'CONFIRMED' })
      .where(eq(bookings.id, input))
    );
  });
};

export const confirmBooking = () => {
  return protectedProcedure.input(z.string().uuid()).mutation(async ({ input, ctx }) => {
    // fetch the booking object 
    // perform validation
    // reject if any error

    return await ctx.db.update(bookings)
      .set({ status: 'CONFIRMED' })
      .where(eq(bookings.id, input))
    );
  });
};

1 Reply

Neto•2y ago

open a transaction for that and you probably want some versioning to avoid race conditions

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Server Side business rules validation