[Azure Search] SDK for Autocomplete

src/SDKs/Search/DataPlane/Microsoft.Azure.Search.Data/Customizations/Documents/DocumentsOperations.cs

@@ -65,6 +65,66 @@ await this.Client.DocumentsProxy.CountWithHttpMessagesAsync(
             };
         }
 
+        public async Task<AzureOperationResponse<AutocompleteResult>> AutocompleteWithHttpMessagesAsync(
+            AutocompleteMode autocompleteMode,
+            string search,
+            string suggesterName,
+            SearchRequestOptions searchRequestOptions = default(SearchRequestOptions),
+            AutocompleteParameters autocompleteParameters = null,
+            Dictionary<string, List<string>> customHeaders = null,
+            CancellationToken cancellationToken = default(CancellationToken))
+        {
+            bool useGet = Client.UseHttpGetForQueries;
+
+            AzureOperationResponse<AutocompleteResult> response;
+
+            if (useGet)
+            {
+                response = await this.Client.DocumentsProxy.AutocompleteGetWithHttpMessagesAsync(
+                    autocompleteMode,
+                    search,
+                    suggesterName,
+                    searchRequestOptions,
+                    autocompleteParameters,
+                    customHeaders,
+                    cancellationToken);
+            }
+            else
+            {
+                string searchFieldsStr = null;
+                if (autocompleteParameters?.SearchFields != null)
+                {
+                    searchFieldsStr = string.Join(",", autocompleteParameters?.SearchFields);
+                }
+                AutocompleteRequest request = new AutocompleteRequest()
+                {
+                    AutocompleteMode = autocompleteMode,
+                    Fuzzy = autocompleteParameters?.Fuzzy,
+                    HighlightPostTag = autocompleteParameters?.HighlightPostTag,
+                    HighlightPreTag = autocompleteParameters?.HighlightPreTag,
+                    MinimumCoverage = autocompleteParameters?.MinimumCoverage,
+                    SearchFields = searchFieldsStr,
+                    Search = search,
+                    SuggesterName = suggesterName,
+                    Top = autocompleteParameters?.Top
+                };
+
+                response = await this.Client.DocumentsProxy.AutocompletePostWithHttpMessagesAsync(
+                    request,
+                    searchRequestOptions,
+                    customHeaders,
+                    cancellationToken);
+            }    
+
+            return new AzureOperationResponse<AutocompleteResult>()
+            {
+                Body = response.Body,
+                Request = response.Request,
+                RequestId = response.RequestId,
+                Response = response.Response
+            };
+        }
+
         public Task<AzureOperationResponse<DocumentSearchResult>> ContinueSearchWithHttpMessagesAsync(
             SearchContinuationToken continuationToken,
             SearchRequestOptions searchRequestOptions = default(SearchRequestOptions),

src/SDKs/Search/DataPlane/Microsoft.Azure.Search.Data/Customizations/Documents/DocumentsOperationsExtensions.cs

@@ -55,6 +55,56 @@ public static async Task<long> CountAsync(
             }
         }
 
+        /// <summary>
+        /// Queries the number of documents in the Azure Search index.
+        /// </summary>
+        /// <param name='operations'>
+        /// The operations group for this extension method.
+        /// </param>
+        /// <param name='searchRequestOptions'>
+        /// Additional parameters for the operation
+        /// </param>
+        public static AutocompleteResult Autocomplete(
+            this IDocumentsOperations operations, 
+            AutocompleteMode autocompleteMode,
+            string search,
+            string suggesterName = null,
+            SearchRequestOptions searchRequestOptions = default(SearchRequestOptions),
+            AutocompleteParameters autocompleteParameters = null,
+            Dictionary<string, List<string>> customHeaders = null,
+            CancellationToken cancellationToken = default(CancellationToken))
+        {
+            return operations.AutocompleteAsync(autocompleteMode, search, suggesterName, searchRequestOptions, autocompleteParameters, customHeaders, cancellationToken).GetAwaiter().GetResult();
+        }
+
+        /// <summary>
+        /// Queries the number of documents in the Azure Search index.
+        /// </summary>
+        /// <param name='operations'>
+        /// The operations group for this extension method.
+        /// </param>
+        /// <param name='searchRequestOptions'>
+        /// Additional parameters for the operation
+        /// </param>
+        /// <param name='cancellationToken'>
+        /// The cancellation token.
+        /// </param>
+        public static async Task<AutocompleteResult> AutocompleteAsync(
+            this IDocumentsOperations operations,
+            AutocompleteMode autocompleteMode,
+            string search,
+            string suggesterName,
+            SearchRequestOptions searchRequestOptions = default(SearchRequestOptions),
+            AutocompleteParameters autocompleteParameters = null,
+            Dictionary<string, List<string>> customHeaders = null,
+            CancellationToken cancellationToken = default(CancellationToken))
+        {
+            using (var _result = await operations.AutocompleteWithHttpMessagesAsync(autocompleteMode, search, suggesterName, searchRequestOptions, autocompleteParameters, customHeaders, cancellationToken).ConfigureAwait(false))
+            {
+                return _result.Body;
+            }
+        }
+
         /// <summary>
         /// Retrieves the next page of search results from the Azure Search index. 
         /// <see href="https://docs.microsoft.com/rest/api/searchservice/Search-Documents"/>

src/SDKs/Search/DataPlane/Microsoft.Azure.Search.Data/Customizations/Documents/IDocumentsOperations.cs

@@ -33,6 +33,27 @@ Task<AzureOperationResponse<long>> CountWithHttpMessagesAsync(
             Dictionary<string, List<string>> customHeaders = null, 
             CancellationToken cancellationToken = default(CancellationToken));
 
+        /// <summary>
+        /// Queries the number of documents in the Azure Search index.
+        /// </summary>
+        /// <param name='searchRequestOptions'>
+        /// Additional parameters for the operation
+        /// </param>
+        /// <param name='customHeaders'>
+        /// The headers that will be added to request.
+        /// </param>
+        /// <param name='cancellationToken'>
+        /// The cancellation token.
+        /// </param>
+        Task<AzureOperationResponse<AutocompleteResult>> AutocompleteWithHttpMessagesAsync(
+            AutocompleteMode autocompleteMode,
+            string search,
+            string suggesterName,
+            SearchRequestOptions searchRequestOptions = default(SearchRequestOptions),
+            AutocompleteParameters autocompleteParametersPaylaod = null,
+            Dictionary<string, List<string>> customHeaders = null,
+            CancellationToken cancellationToken = default(CancellationToken));
+
         /// <summary>
         /// Retrieves the next page of search results from the Azure Search index.
         /// <see href="https://docs.microsoft.com/rest/api/searchservice/Search-Documents"/>