我有多个 aws 凭据，我希望能够使用特定的凭据将数据上传到特定的存储桶。
我正在尝试调整 aws sdk 示例 put_object.cpp 中提供的代码。我将如何更改 client_config 以允许我输入我的特定密钥和访问密钥 ID。
为了完整起见，我将示例代码放在这里：
//snippet-sourcedescription:[put_object.cpp demonstrates how to put a file into an Amazon S3 bucket.]
//snippet-service:[s3]
//snippet-keyword:[Amazon S3]
//snippet-keyword:[C++]
//snippet-sourcesyntax:[cpp]
//snippet-keyword:[Code Sample]
//snippet-sourcetype:[full-example]
//snippet-sourceauthor:[AWS]
/*
Copyright 2010-2019 Amazon.com, Inc. or its affiliates. All Rights Reserved.
This file is licensed under the Apache License, Version 2.0 (the "License").
You may not use this file except in compliance with the License. A copy of
the License is located at
http://aws.amazon.com/apache2.0/
This file 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.
*/
//snippet-start:[s3.cpp.put_object.inc]
#include <aws/core/Aws.h>
#include <aws/s3/S3Client.h>
#include <aws/s3/model/PutObjectRequest.h>
#include <iostream>
#include <fstream>
#include <sys/stat.h>
//snippet-end:[s3.cpp.put_object.inc]
/**
* Check if file exists
*
* Note: If using C++17, can use std::filesystem::exists()
*/
inline bool file_exists(const std::string& name)
{
struct stat buffer;
return (stat(name.c_str(), &buffer) == 0);
}
/**
* Put an object into an Amazon S3 bucket
*/
bool put_s3_object(const Aws::String& s3_bucket_name,
const Aws::String& s3_object_name,
const std::string& file_name,
const Aws::String& region = "")
{
// Verify file_name exists
if (!file_exists(file_name)) {
std::cout << "ERROR: NoSuchFile: The specified file does not exist"
<< std::endl;
return false;
}
// If region is specified, use it
Aws::Client::ClientConfiguration clientConfig;
if (!region.empty())
clientConfig.region = region;
// Set up request
// snippet-start:[s3.cpp.put_object.code]
Aws::S3::S3Client s3_client(clientConfig);
Aws::S3::Model::PutObjectRequest object_request;
object_request.SetBucket(s3_bucket_name);
object_request.SetKey(s3_object_name);
const std::shared_ptr<Aws::IOStream> input_data =
Aws::MakeShared<Aws::FStream>("SampleAllocationTag",
file_name.c_str(),
std::ios_base::in | std::ios_base::binary);
object_request.SetBody(input_data);
// Put the object
auto put_object_outcome = s3_client.PutObject(object_request);
if (!put_object_outcome.IsSuccess()) {
auto error = put_object_outcome.GetError();
std::cout << "ERROR: " << error.GetExceptionName() << ": "
<< error.GetMessage() << std::endl;
return false;
}
return true;
// snippet-end:[s3.cpp.put_object.code]
}
/**
* Exercise put_s3_object()
*/
int main(int argc, char** argv)
{
Aws::SDKOptions options;
Aws::InitAPI(options);
{
// Assign these values before running the program
const Aws::String bucket_name = "BUCKET_NAME";
const Aws::String object_name = "OBJECT_NAME";
const std::string file_name = "FILE_NAME";
const Aws::String region = ""; // Optional
// Put the file into the S3 bucket
if (put_s3_object(bucket_name, object_name, file_name, region)) {
std::cout << "Put file " << file_name
<< " to S3 bucket " << bucket_name
<< " as object " << object_name << std::endl;
}
}
Aws::ShutdownAPI(options);
}