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// Copyright 2009-present MongoDB, Inc.
//
// 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
//
// http://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 <bsoncxx/builder/basic/document.hpp>
#include <bsoncxx/builder/basic/kvp.hpp>
#include <mongocxx/client.hpp>
#include <mongocxx/instance.hpp>
#include <mongocxx/uri.hpp>
#include <examples/macros.hh>
using bsoncxx::builder::basic::kvp;
using bsoncxx::builder::basic::make_document;
int EXAMPLES_CDECL main() {
// The mongocxx::instance constructor and destructor initialize and shut down the driver,
// respectively. Therefore, a mongocxx::instance must be created before using the driver and
// must remain alive for as long as the driver is in use.
mongocxx::instance inst{};
mongocxx::client conn{mongocxx::uri{}};
auto db = conn["test"];
try {
db["restaurants"].drop();
} catch (const std::exception&) {
// Collection did not exist.
}
// Create a single field index.
{ db["restaurants"].create_index(make_document(kvp("cuisine", 1)), {}); }
// Create a compound index.
{
db["restaurants"].drop();
db["restaurants"].create_index(make_document(kvp("cuisine", 1), kvp("address.zipcode", -1)),
{});
}
// Create a unique index.
{
db["restaurants"].drop();
mongocxx::options::index index_options{};
index_options.unique(true);
db["restaurants"].create_index(make_document(kvp("website", 1)), index_options);
}
// Create an index with storage engine options
{
db["restaurants"].drop();
mongocxx::options::index index_options{};
// Use `std::make_unique` with C++14 and newer.
std::unique_ptr<mongocxx::options::index::wiredtiger_storage_options> wt_options{
new mongocxx::options::index::wiredtiger_storage_options()};
wt_options->config_string("block_allocation=first");
index_options.storage_options(std::move(wt_options));
db["restaurants"].create_index(make_document(kvp("cuisine", 1)), index_options);
}
}
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