errorMessage.js

/* eslint-disable no-restricted-syntax */
/* eslint-disable prefer-destructuring */
/* eslint-disable no-use-before-define */
/* eslint-disable no-param-reassign */
function getErrorAsMessage(url, api, err) {
  let str = '';
  if (err.response) {
    err = err.response;
    if (err.data) str += `${formatErrorMessage(err.data)}`;
  } else if (err.body) str += `${formatErrorMessage(err.body)}`;
  url = url.split('?')[0];

  if (err.status) str += `Code: ${err.status}`;
  if (err.action) str += ` Action: ${err.action}`;
  if (err.type) str += ` Type: ${err.type}`;
  if (url) str += ` url: ${url}`;
  if (api && api.method) str += ` method: ${api.method}`;
  if (err.stack) str = [str, err.stack].join('\n');
  return str;
}

function formatErrorMessage(msg) {
  if (typeof msg === 'object') {
    let nmsg = '';
    for (const key of Object.keys(msg)) {
      if (msg[key] && typeof msg[key] !== 'object') nmsg += `${key} ${msg[key]} `;
    }
    return nmsg;
  }
  return msg;
}

function accessDenied(action, db, server) {
  const err = {};
  err.status = 403;
  err.url = (server || '') + (db || '');
  err.type = 'client';
  err.action = action;
  err.body = `${err.action} not permitted for ${err.url}`;
  return err;
}

function getAPIErrorMessage(url, api, err) {
  return `API Error ${getErrorAsMessage(url, api, err)}`;
}

function getAccessDeniedMessage(url, api, err) {
  return `Access Denied ${getErrorAsMessage(url, api, err)}`;
}

function getInvalidURIMessage(url, call) {
  const str = `Invalid argument to
            ${call}. 
            ${url}
            is not a valid Terminus DB API endpoint`;
  return str;
}

function getInvalidParameterMessage(call, msg) {
  const str = `Invalid Parameter to
            ${call}. 
            ${msg}`;
  return str;
}

/**
 * Utility functions for generating and retrieving error messages
 * and storing error state
 */

function parseAPIError(response) {
  const err = {};
  err.status = response.status;
  err.type = response.type;
  if (response.data && typeof response.data === 'object') {
    let msg;
    try {
      msg = response.text();
    } catch (e) {
      try {
        msg = response.json();
      } catch (error) {
        msg = response.toString();
      }
    }
    err.body = msg;
  } else if (response.data) err.body = response.data;
  err.url = response.url;
  err.headers = response.headers;
  err.redirected = response.redirected;
  return err;
}

function apiErrorFormatted(url, options, err) {
  const e = new Error(getAPIErrorMessage(url, options, err));
  if (err.response && err.response.data) e.data = err.response.data;
  if (err.response && err.response.status) e.status = err.response.status;
  return e;
}

module.exports = {
  apiErrorFormatted,
  getErrorAsMessage,
  getAPIErrorMessage,
  getAccessDeniedMessage,
  accessDenied,
  getInvalidURIMessage,
  getInvalidParameterMessage,
  parseAPIError,
};