Express: converts params to number

validatorHandler: it’s a middleware that validates schemas (check if the param :id is number, if not returns Error)
But Express converts all params into strings. SO, how can I turn :id into number BEFORE the middleware (validatorHandler) reads :id

  // Middleare
  async (req, res) => {
    const { id } = req.params
    try {
      const author = await service.deleteAuthor(+id)
      res.status(201).json({ data: author })
    } catch (error) {

I found the solution It’s pretty clear. Transform the params if its ID into number.

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