figmacoder/src/middlewares/errorHandler.js

FIGMACODER is a npm library for generating an express application

const httpCode = require('./errors/http-code')
const errorType = require('./errors/error-type')
const errorMessage = require('./errors/error-message.js')

module.exports = (error, req, res, next) => {
  const statusCode = res.statusCode === 200
    ? errorType[error.name] || 500
    : res.statusCode

  let errorName = httpCode[statusCode]
  errorName = errorName.replace(/s/, '')

  res.statusCode = statusCode
  res.json({
    error: {
      name: errorName || error.name,
      message: error.message || errorMessage[errorName],
      stack: error.stack || undefined,
      errors: error.errors || undefined
    }
  })
}