feat(vectorsearch): generate library

CHANGELOG.md

@@ -15,6 +15,7 @@ We are happy to announce the following GA libraries. Unless specifically noted,
 the APIs in these libraries are stable, and are ready for production use.
 
 - [Gemini Enterprise for Customer Experience API](google/cloud/ces/README.md)
+- [Vector Search API](google/cloud/vectorsearch/README.md)
 - [Vision AI API](/google/cloud/visionai/README.md)
 - [Workload Manager](/google/cloud/workloadmanager/README.md)
 

README.md

@@ -533,6 +533,9 @@ See each library's `README.md` file for more information about:
 - [Cloud Translation API](google/cloud/translate/README.md)
   [[quickstart]](google/cloud/translate/quickstart/README.md)
   [[reference]](https://cloud.google.com/cpp/docs/reference/translate/latest)
+- [Vector Search API](google/cloud/vectorsearch/README.md)
+  [[quickstart]](google/cloud/vectorsearch/quickstart/README.md)
+  [[reference]](https://cloud.google.com/cpp/docs/reference/vectorsearch/latest)
 - [Video Services](google/cloud/video/README.md)
   [[quickstart]](google/cloud/video/quickstart/README.md)
   [[reference]](https://cloud.google.com/cpp/docs/reference/video/latest)

ci/etc/expected_install_directories

@@ -1163,6 +1163,10 @@
 ./include/google/cloud/translate/v3
 ./include/google/cloud/translate/v3/internal
 ./include/google/cloud/translate/v3/mocks
+./include/google/cloud/vectorsearch
+./include/google/cloud/vectorsearch/v1
+./include/google/cloud/vectorsearch/v1/internal
+./include/google/cloud/vectorsearch/v1/mocks
 ./include/google/cloud/video
 ./include/google/cloud/video/livestream
 ./include/google/cloud/video/livestream/v1
@@ -1570,6 +1574,8 @@
 ./lib64/cmake/google_cloud_cpp_trace_mocks
 ./lib64/cmake/google_cloud_cpp_translate
 ./lib64/cmake/google_cloud_cpp_translate_mocks
+./lib64/cmake/google_cloud_cpp_vectorsearch
+./lib64/cmake/google_cloud_cpp_vectorsearch_mocks
 ./lib64/cmake/google_cloud_cpp_video
 ./lib64/cmake/google_cloud_cpp_video_mocks
 ./lib64/cmake/google_cloud_cpp_videointelligence

cmake/GoogleCloudCppFeatures.cmake

@@ -186,6 +186,7 @@ set(GOOGLE_CLOUD_CPP_GA_LIBRARIES
     "tpu"
     "trace"
     "translate"
+    "vectorsearch"
     "video"
     "videointelligence"
     "vision"

external/googleapis/protodeps/vectorsearch.deps

@@ -0,0 +1,9 @@
+@googleapis//google/api:annotations_proto
+@googleapis//google/api:client_proto
+@googleapis//google/api:field_behavior_proto
+@googleapis//google/api:field_info_proto
+@googleapis//google/api:http_proto
+@googleapis//google/api:launch_stage_proto
+@googleapis//google/api:resource_proto
+@googleapis//google/longrunning:operations_proto
+@googleapis//google/rpc:status_proto

external/googleapis/protolists/vectorsearch.list

@@ -0,0 +1,6 @@
+@googleapis//google/cloud/vectorsearch/v1:common.proto
+@googleapis//google/cloud/vectorsearch/v1:data_object.proto
+@googleapis//google/cloud/vectorsearch/v1:data_object_search_service.proto
+@googleapis//google/cloud/vectorsearch/v1:data_object_service.proto
+@googleapis//google/cloud/vectorsearch/v1:embedding_config.proto
+@googleapis//google/cloud/vectorsearch/v1:vectorsearch_service.proto

external/googleapis/update_libraries.sh

@@ -331,6 +331,7 @@ declare -A -r LIBRARIES=(
       "@googleapis//google/devtools/cloudtrace/v2:cloudtrace_cc_grpc"
   )"
   ["translate"]="@googleapis//google/cloud/translate/v3:translation_cc_grpc"
+  ["vectorsearch"]="@googleapis//google/cloud/vectorsearch/v1:vectorsearch_cc_grpc"
   ["video"]="$(
     printf ",%s" \
       "@googleapis//google/cloud/video/livestream/v1:livestream_cc_grpc" \

generator/generator_config.textproto

@@ -4022,6 +4022,28 @@ service {
   retryable_status_codes: ["kUnavailable"]
 }
 
+# Vector Search
+service {
+  service_proto_path: "google/cloud/vectorsearch/v1/data_object_service.proto"
+  product_path: "google/cloud/vectorsearch/v1"
+  initial_copyright_year: "2026"
+  retryable_status_codes: ["kUnavailable"]
+}
+
+service {
+  service_proto_path: "google/cloud/vectorsearch/v1/vectorsearch_service.proto"
+  product_path: "google/cloud/vectorsearch/v1"
+  initial_copyright_year: "2026"
+  retryable_status_codes: ["kUnavailable"]
+}
+
+service {
+  service_proto_path: "google/cloud/vectorsearch/v1/data_object_search_service.proto"
+  product_path: "google/cloud/vectorsearch/v1"
+  initial_copyright_year: "2026"
+  retryable_status_codes: ["kUnavailable"]
+}
+
 # Video
 service {
   service_proto_path: "google/cloud/video/livestream/v1/service.proto"

google/cloud/vectorsearch/BUILD.bazel

@@ -0,0 +1,31 @@
+# Copyright 2026 Google LLC
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     https://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+load("//bazel:gapic.bzl", "cc_gapic_library")
+
+package(default_visibility = ["//visibility:private"])
+
+licenses(["notice"])  # Apache 2.0
+
+service_dirs = ["v1/"]
+
+googleapis_deps = [
+    "@googleapis//google/cloud/vectorsearch/v1:vectorsearch_cc_grpc",
+]
+
+cc_gapic_library(
+    name = "vectorsearch",
+    googleapis_deps = googleapis_deps,
+    service_dirs = service_dirs,
+)

google/cloud/vectorsearch/CMakeLists.txt

@@ -0,0 +1,35 @@
+# ~~~
+# Copyright 2026 Google LLC
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     https://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+# ~~~
+
+include(GoogleCloudCppLibrary)
+
+google_cloud_cpp_add_gapic_library(vectorsearch "Vector Search API"
+                                   SERVICE_DIRS "v1/")
+
+if (BUILD_TESTING AND GOOGLE_CLOUD_CPP_ENABLE_CXX_EXCEPTIONS)
+    add_executable(vectorsearch_quickstart "quickstart/quickstart.cc")
+    target_link_libraries(vectorsearch_quickstart
+                          PRIVATE google-cloud-cpp::vectorsearch)
+    google_cloud_cpp_add_common_options(vectorsearch_quickstart)
+    add_test(
+        NAME vectorsearch_quickstart
+        COMMAND
+            cmake -P "${PROJECT_SOURCE_DIR}/cmake/quickstart-runner.cmake"
+            $<TARGET_FILE:vectorsearch_quickstart> GOOGLE_CLOUD_PROJECT
+            GOOGLE_CLOUD_CPP_TEST_REGION)
+    set_tests_properties(vectorsearch_quickstart
+                         PROPERTIES LABELS "integration-test;quickstart")
+endif ()

google/cloud/vectorsearch/README.md

@@ -0,0 +1,68 @@
+# Vector Search API C++ Client Library
+
+This directory contains an idiomatic C++ client library for the
+[Vector Search API][cloud-service-docs].
+
+The Vector Search API provides a fully-managed, highly performant, and scalable
+vector database designed to power next-generation search, recommendation, and
+generative AI applications. It allows you to store, index, and query your data
+and its corresponding vector embeddings through a simple, intuitive interface.
+With Vector Search, you can define custom schemas for your data, insert objects
+with associated metadata, automatically generate embeddings from your data, and
+perform fast approximate nearest neighbor (ANN) searches to find semantically
+similar items at scale.
+
+While this library is **GA**, please note that the Google Cloud C++ client
+libraries do **not** follow [Semantic Versioning](https://semver.org/).
+
+## Quickstart
+
+The [quickstart/](quickstart/README.md) directory contains a minimal environment
+to get started using this client library in a larger project. The following
+"Hello World" program is used in this quickstart, and should give you a taste of
+this library.
+
+<!-- inject-quickstart-start -->
+
+```cc
+#include "google/cloud/vectorsearch/v1/vector_search_client.h"
+#include "google/cloud/location.h"
+#include <iostream>
+
+int main(int argc, char* argv[]) try {
+  if (argc != 3) {
+    std::cerr << "Usage: " << argv[0] << " project-id location-id\n";
+    return 1;
+  }
+
+  auto const location = google::cloud::Location(argv[1], argv[2]);
+
+  namespace vectorsearch = ::google::cloud::vectorsearch_v1;
+  auto client = vectorsearch::VectorSearchServiceClient(
+      vectorsearch::MakeVectorSearchServiceConnection());
+
+  for (auto r : client.ListCollections(location.FullName())) {
+    if (!r) throw std::move(r).status();
+    std::cout << r->DebugString() << "\n";
+  }
+
+  return 0;
+} catch (google::cloud::Status const& status) {
+  std::cerr << "google::cloud::Status thrown: " << status << "\n";
+  return 1;
+}
+```
+
+<!-- inject-quickstart-end -->
+
+## More Information
+
+- Official documentation about the [Vector Search API][cloud-service-docs]
+  service
+- [Reference doxygen documentation][doxygen-link] for each release of this
+  client library
+- Detailed header comments in our [public `.h`][source-link] files
+
+[cloud-service-docs]: https://docs.cloud.google.com/vertex-ai/docs/vector-search-2/overview
+[doxygen-link]: https://cloud.google.com/cpp/docs/reference/vectorsearch/latest/
+[source-link]: https://github.com/googleapis/google-cloud-cpp/tree/main/google/cloud/vectorsearch

google/cloud/vectorsearch/doc/environment-variables.dox

@@ -0,0 +1,57 @@
+/*!
+@page vectorsearch-env Environment Variables
+
+A number of environment variables can be used to configure the behavior of
+the library. There are also functions to configure this behavior in code. The
+environment variables are convenient when troubleshooting problems.
+
+@section vectorsearch-env-endpoint Endpoint Overrides
+
+<!-- inject-endpoint-env-vars-start -->
+
+- `GOOGLE_CLOUD_CPP_DATA_OBJECT_SEARCH_SERVICE_ENDPOINT=...` overrides the
+  `EndpointOption` (which defaults to "vectorsearch.googleapis.com")
+  used by `MakeDataObjectSearchServiceConnection()`.
+
+- `GOOGLE_CLOUD_CPP_DATA_OBJECT_SERVICE_ENDPOINT=...` overrides the
+  `EndpointOption` (which defaults to "vectorsearch.googleapis.com")
+  used by `MakeDataObjectServiceConnection()`.
+
+- `GOOGLE_CLOUD_CPP_VECTOR_SEARCH_SERVICE_ENDPOINT=...` overrides the
+  `EndpointOption` (which defaults to "vectorsearch.googleapis.com")
+  used by `MakeVectorSearchServiceConnection()`.
+
+<!-- inject-endpoint-env-vars-end -->
+
+@see google::cloud::EndpointOption
+
+@section vectorsearch-env-logging Logging
+
+`GOOGLE_CLOUD_CPP_ENABLE_TRACING=rpc`: turns on tracing for most gRPC
+calls. The library injects an additional Stub decorator that prints each gRPC
+request and response.  Unless you have configured your own logging backend,
+you should also set `GOOGLE_CLOUD_CPP_ENABLE_CLOG` to produce any output on
+the program's console.
+
+@see google::cloud::LoggingComponentsOption
+
+`GOOGLE_CLOUD_CPP_TRACING_OPTIONS=...`: modifies the behavior of gRPC tracing,
+including whether messages will be output on multiple lines, or whether
+string/bytes fields will be truncated.
+
+@see google::cloud::GrpcTracingOptionsOption
+
+`GOOGLE_CLOUD_CPP_ENABLE_CLOG=yes`: turns on logging in the library, basically
+the library always "logs" but the logging infrastructure has no backend to
+actually print anything until the application sets a backend or they set this
+environment variable.
+
+@see google::cloud::LogBackend
+@see google::cloud::LogSink
+
+@section vectorsearch-env-project Setting the Default Project
+
+`GOOGLE_CLOUD_PROJECT=...`: is used in examples and integration tests to
+configure the GCP project. This has no effect in the library.
+
+*/

google/cloud/vectorsearch/doc/main.dox

@@ -0,0 +1,63 @@
+/*!
+
+@mainpage Vector Search API C++ Client Library
+
+An idiomatic C++ client library for the [Vector Search API][cloud-service-docs].
+
+The Vector Search API provides a fully-managed, highly performant, and
+scalable vector database designed to power next-generation search,
+recommendation, and generative AI applications. It allows you to store,
+index, and query your data and its corresponding vector embeddings through
+a simple, intuitive interface. With Vector Search, you can define custom
+schemas for your data, insert objects with associated metadata,
+automatically generate embeddings from your data, and perform fast
+approximate nearest neighbor (ANN) searches to find semantically similar
+items at scale.
+
+While this library is **GA**, please note that the Google Cloud C++ client libraries do **not** follow
+[Semantic Versioning](https://semver.org/).
+
+@tableofcontents{HTML:2}
+
+## Quickstart
+
+The following shows the code that you'll run in the
+`google/cloud/vectorsearch/quickstart/` directory,
+which should give you a taste of the Vector Search API C++ client library API.
+
+@snippet quickstart.cc all
+
+## Main classes
+
+<!-- inject-client-list-start -->
+This library offers multiple `*Client` classes, which are listed below. Each one
+of these classes exposes all the RPCs for a service as member functions of the
+class. This library groups multiple services because they are part of the same
+product or are often used together. A typical example may be the administrative
+and data plane operations for a single product.
+
+The library also has other classes that provide helpers, configuration
+parameters, and infrastructure to mock the `*Client` classes when testing your
+application.
+
+- [\c vectorsearch_v1::DataObjectServiceClient](@ref google::cloud::vectorsearch_v1::DataObjectServiceClient)
+- [\c vectorsearch_v1::DataObjectSearchServiceClient](@ref google::cloud::vectorsearch_v1::DataObjectSearchServiceClient)
+- [\c vectorsearch_v1::VectorSearchServiceClient](@ref google::cloud::vectorsearch_v1::VectorSearchServiceClient)
+<!-- inject-client-list-end -->
+
+## More Information
+
+- @ref common-error-handling - describes how the library reports errors.
+- @ref vectorsearch-override-endpoint - describes how to override the default
+  endpoint.
+- @ref vectorsearch-override-authentication - describes how to change the
+  authentication credentials used by the library.
+- @ref vectorsearch-override-retry - describes how to change the default retry
+  policies.
+- @ref vectorsearch-env - describes environment variables that can configure the
+  behavior of the library.
+- @ref vectorsearch-override-universe-domain - describes how to override the default universe domain.
+
+[cloud-service-docs]: https://docs.cloud.google.com/vertex-ai/docs/vector-search-2/overview
+
+*/

google/cloud/vectorsearch/doc/options.dox

@@ -0,0 +1,10 @@
+/*!
+@defgroup google-cloud-vectorsearch-options Vector Search API Configuration Options
+
+This library uses the same mechanism (`google::cloud::Options`) and the common
+[options](@ref options) as all other C++ client libraries for its configuration.
+Some `*Option` classes, which are only used in this library, are documented in
+this page.
+
+@see @ref options - for an overview of client library configuration.
+*/