New: Link to "Why Searches Could be Failing" wiki section

frontend/src/Search/AddNewItem.js

@@ -1,5 +1,6 @@
 import PropTypes from 'prop-types';
 import React, { Component } from 'react';
+import Alert from 'Components/Alert';
 import TextInput from 'Components/Form/TextInput';
 import Icon from 'Components/Icon';
 import Button from 'Components/Link/Button';
@@ -7,7 +8,7 @@ import Link from 'Components/Link/Link';
 import LoadingIndicator from 'Components/Loading/LoadingIndicator';
 import PageContent from 'Components/Page/PageContent';
 import PageContentBody from 'Components/Page/PageContentBody';
-import { icons } from 'Helpers/Props';
+import { icons, kinds } from 'Helpers/Props';
 import getErrorMessage from 'Utilities/Object/getErrorMessage';
 import translate from 'Utilities/String/translate';
 import AddNewAuthorSearchResultConnector from './Author/AddNewAuthorSearchResultConnector';
@@ -127,9 +128,16 @@ class AddNewItem extends Component {
             !isFetching && !!error ?
               <div className={styles.message}>
                 <div className={styles.helpText}>
-                  Failed to load search results, please try again.
+                  {translate('FailedLoadingSearchResults')}
+                </div>
+
+                <Alert kind={kinds.WARNING}>{getErrorMessage(error)}</Alert>
+
+                <div>
+                  <Link to="https://wiki.servarr.com/readarr/troubleshooting#invalid-response-received-from-metadata-api">
+                    {translate('WhySearchesCouldBeFailing')}
+                  </Link>
                 </div>
-                <div>{getErrorMessage(error)}</div>
               </div> : null
           }
 

src/NzbDrone.Core/Localization/Core/en.json

@@ -348,6 +348,7 @@
   "ExtraFileExtensionsHelpText": "Comma separated list of extra files to import (.nfo will be imported as .nfo-orig)",
   "ExtraFileExtensionsHelpTextsExamples": "Examples: '.sub, .nfo' or 'sub,nfo'",
   "FailedDownloadHandling": "Failed Download Handling",
+  "FailedLoadingSearchResults": "Failed to load search results, please try again.",
   "FailedToLoadQueue": "Failed to load Queue",
   "FileDateHelpText": "Change file date on import/rescan",
   "FileDetails": "File Details",
@@ -1073,6 +1074,7 @@
   "WatchRootFoldersForFileChanges": "Watch Root Folders for file changes",
   "WeekColumnHeader": "Week Column Header",
   "WhatsNew": "What's New?",
+  "WhySearchesCouldBeFailing": "Click here to find out why searches could be failing",
   "WouldYouLikeToRestoreBackup": "Would you like to restore the backup '{name}'?",
   "WriteAudioTags": "Tag Audio Files with Metadata",
   "WriteAudioTagsScrub": "Scrub Existing Tags",

src/NzbDrone.Core/MetadataSource/BookInfo/BookInfoProxy.cs

@@ -218,13 +218,12 @@ namespace NzbDrone.Core.MetadataSource.BookInfo
             catch (HttpException ex)
             {
                 _logger.Warn(ex, ex.Message);
-                throw new GoodreadsException("Search for '{0}' failed. Unable to communicate with Goodreads.", title);
+                throw new GoodreadsException("Search for '{0}' failed. Unable to communicate with Goodreads.", ex, title);
             }
-            catch (Exception ex)
+            catch (Exception ex) when (ex is not BookInfoException)
             {
                 _logger.Warn(ex, ex.Message);
-                throw new GoodreadsException("Search for '{0}' failed. Invalid response received from Goodreads.",
-                    title);
+                throw new GoodreadsException("Search for '{0}' failed. Invalid response received from Goodreads.", ex, title);
             }
         }
 
@@ -296,6 +295,11 @@ namespace NzbDrone.Core.MetadataSource.BookInfo
                 {
                     return MapSearchResult(ids);
                 }
+                catch (HttpException ex)
+                {
+                    _logger.Warn(ex);
+                    throw new BookInfoException("Search for '{0}' failed. Unable to communicate with ReadarrAPI, returning status code: {1}.", ex, query, ex.Response.StatusCode);
+                }
                 catch (Exception e)
                 {
                     _logger.Warn(e, "Error mapping search results");
@@ -484,7 +488,7 @@ namespace NzbDrone.Core.MetadataSource.BookInfo
                 httpRequest.ContentSummary = ids.ToJson(Formatting.None);
 
                 httpRequest.AllowAutoRedirect = true;
-                httpRequest.SuppressHttpError = true;
+                httpRequest.SuppressHttpErrorStatusCodes = new[] { HttpStatusCode.TooManyRequests };
 
                 httpResponse = _httpClient.Post<BulkBookResource>(httpRequest);