devour-client/lib/middleware/json-api/res-errors.js

A lightweight, framework agnostic, flexible JSON API client

"use strict";

function _slicedToArray(arr, i) { return _arrayWithHoles(arr) || _iterableToArrayLimit(arr, i) || _unsupportedIterableToArray(arr, i) || _nonIterableRest(); }
function _nonIterableRest() { throw new TypeError("Invalid attempt to destructure non-iterable instance.\nIn order to be iterable, non-array objects must have a [Symbol.iterator]() method."); }
function _iterableToArrayLimit(r, l) { var t = null == r ? null : "undefined" != typeof Symbol && r[Symbol.iterator] || r["@@iterator"]; if (null != t) { var e, n, i, u, a = [], f = !0, o = !1; try { if (i = (t = t.call(r)).next, 0 === l) { if (Object(t) !== t) return; f = !1; } else for (; !(f = (e = i.call(t)).done) && (a.push(e.value), a.length !== l); f = !0); } catch (r) { o = !0, n = r; } finally { try { if (!f && null != t["return"] && (u = t["return"](), Object(u) !== u)) return; } finally { if (o) throw n; } } return a; } }
function _arrayWithHoles(arr) { if (Array.isArray(arr)) return arr; }
function _createForOfIteratorHelper(o, allowArrayLike) { var it = typeof Symbol !== "undefined" && o[Symbol.iterator] || o["@@iterator"]; if (!it) { if (Array.isArray(o) || (it = _unsupportedIterableToArray(o)) || allowArrayLike && o && typeof o.length === "number") { if (it) o = it; var i = 0; var F = function F() {}; return { s: F, n: function n() { if (i >= o.length) return { done: true }; return { done: false, value: o[i++] }; }, e: function e(_e) { throw _e; }, f: F }; } throw new TypeError("Invalid attempt to iterate non-iterable instance.\nIn order to be iterable, non-array objects must have a [Symbol.iterator]() method."); } var normalCompletion = true, didErr = false, err; return { s: function s() { it = it.call(o); }, n: function n() { var step = it.next(); normalCompletion = step.done; return step; }, e: function e(_e2) { didErr = true; err = _e2; }, f: function f() { try { if (!normalCompletion && it["return"] != null) it["return"](); } finally { if (didErr) throw err; } } }; }
function _unsupportedIterableToArray(o, minLen) { if (!o) return; if (typeof o === "string") return _arrayLikeToArray(o, minLen); var n = Object.prototype.toString.call(o).slice(8, -1); if (n === "Object" && o.constructor) n = o.constructor.name; if (n === "Map" || n === "Set") return Array.from(o); if (n === "Arguments" || /^(?:Ui|I)nt(?:8|16|32)(?:Clamped)?Array$/.test(n)) return _arrayLikeToArray(o, minLen); }
function _arrayLikeToArray(arr, len) { if (len == null || len > arr.length) len = arr.length; for (var i = 0, arr2 = new Array(len); i < len; i++) arr2[i] = arr[i]; return arr2; }
var Logger = require('../../logger');
function defaultErrorBuilder(error) {
  var title = error.title,
    detail = error.detail;
  return {
    title: title,
    detail: detail
  };
}
function getBuildErrors(options) {
  return function buildErrors(serverErrors) {
    if (!serverErrors) {
      Logger.error('Unidentified error');
      return;
    }
    var errorBuilder = options && options.errorBuilder || defaultErrorBuilder;
    var errors = {};
    if (serverErrors.errors) {
      var _iterator = _createForOfIteratorHelper(serverErrors.errors.entries()),
        _step;
      try {
        for (_iterator.s(); !(_step = _iterator.n()).done;) {
          var _step$value = _slicedToArray(_step.value, 2),
            index = _step$value[0],
            error = _step$value[1];
          errors[errorKey(index, error.source)] = errorBuilder(error);
        }
      } catch (err) {
        _iterator.e(err);
      } finally {
        _iterator.f();
      }
    }
    if (serverErrors.error) {
      errors.data = {
        title: serverErrors.error
      };
    }
    return errors;
  };
}
function errorKey(index, source) {
  if (!source || source.pointer == null) {
    return index;
  }
  return source.pointer.split('/').pop();
}
exports.getMiddleware = function (options) {
  var buildErrors = getBuildErrors(options);
  return {
    name: 'errors',
    error: function error(payload) {
      if (payload.response) {
        var response = payload.response;
        if (response.data) {
          if (typeof response.data === 'string') {
            var error = response.statusText ? "".concat(response.statusText, ": ").concat(response.data) : response.data;
            return buildErrors({
              error: error
            });
          }
          return buildErrors(response.data);
        }
        return buildErrors({
          error: response.statusText
        });
      }
      if (payload instanceof Error) {
        return payload;
      }
      return null;
    }
  };
};