docxtemplater/js/error-logger.js

Generate docx, pptx, and xlsx from templates (Word, Powerpoint and Excel documents), from Node.js, the Browser and the command line

"use strict";

// The error thrown here contains additional information when logged with JSON.stringify (it contains a properties object containing all suberrors).
function replaceErrors(key, value) {
  if (value instanceof Error) {
    return Object.getOwnPropertyNames(value).concat("stack").reduce(function (error, key) {
      error[key] = value[key];
      if (key === "stack") {
        // This is used because in Firefox, stack is not an own property
        error[key] = value[key].toString();
      }
      return error;
    }, {});
  }
  return value;
}
function logger(error, logging) {
  // eslint-disable-next-line no-console
  console.log(JSON.stringify({
    error: error
  }, replaceErrors, logging === "json" ? 2 : null));
  if (error.properties && error.properties.errors instanceof Array) {
    var errorMessages = error.properties.errors.map(function (error) {
      return error.properties.explanation;
    }).join("\n");
    // eslint-disable-next-line no-console
    console.log("errorMessages", errorMessages);
    // errorMessages is a humanly readable message looking like this :
    // 'The tag beginning with "foobar" is unopened'
  }
}
module.exports = logger;