Question

我具有此功能：

function createDevis(invoice, path) {
  const file = fs.createWriteStream(path);
  file.on("error", function (error) {
    logger.error("Inside file.on inside createDevis function");
    logger.error(error);
    file.end();
  });
  doc.pipe(file);
}

它在这里叫：

models.operation_sav
  .findByPk(devisInformation.opSavId, { include: [{ all: true }] })
  .then((operationSavFound) => {
    if (operationSavFound !== null) {
      // When this function throws an error, I would like to also handle it in the catch block
      createDevis(devisData, "./generatedDocuments/devis.pdf");
    } else {
      res.status(400).json({
        tag: "Operation Sav Not found",
        message: error.message,
      });
    }
  })
  .catch((error) => {
    logger.error(error);
    res.status(400).json({
      tag: "The devis has not been generated!",
      message: error.message,
    });
  });

我希望在catch块中处理所有错误。但是，函数createWriteStream在内部处理错误的方式不允许我在catch块内捕获错误：

  const file = fs.createWriteStream(path);
      file.on("error", function (error) {
        logger.error("Inside file.on inside createDevis function");
        logger.error(error);
        file.end();
      });

这会在响应http请求时出现问题，也使代码中的错误处理变得不那么直接。我尝试在file.on内抛出错误：

  file.on("error", function (error) {
    logger.error("Inside file.on inside createDevis function");
    logger.error(error);
    console.log(error);
    file.end();
    throw new Error("Error inside createWriteStream");
  });

为了像在catch块中的其他错误一样捕获它。但是，这没有任何改变。

在createWriteStream中发生错误时引发错误

0 个答案: