Unless otherwise configured, the client libraries use Application Default Credentials to authenticate with Google Cloud Services. While this works for most applications, in some cases you may need to override this default. You can do so by providing the UnifiedCredentialsOption The following example shows how to explicitly load a service account key file:
[](std::string const& keyfile) {
auto is = std::ifstream(keyfile);
is.exceptions(std::ios::badbit); // Minimal error handling in examples
auto contents = std::string(std::istreambuf_iterator<char>(is.rdbuf()), {});
auto options =
google::cloud::Options{}.set<google::cloud::UnifiedCredentialsOption>(
google::cloud::MakeServiceAccountCredentials(contents));
return google::cloud::redis_cluster_v1::CloudRedisClusterClient(
google::cloud::redis_cluster_v1::MakeCloudRedisClusterConnection(
options));
}
Follow these links to find examples for other *Client classes:
[[["Easy to understand","easyToUnderstand","thumb-up"],["Solved my problem","solvedMyProblem","thumb-up"],["Other","otherUp","thumb-up"]],[["Hard to understand","hardToUnderstand","thumb-down"],["Incorrect information or sample code","incorrectInformationOrSampleCode","thumb-down"],["Missing the information/samples I need","missingTheInformationSamplesINeed","thumb-down"],["Other","otherDown","thumb-down"]],["Last updated 2025-03-05 UTC."],[[["This document provides information on how to override the default authentication credentials used by client libraries to authenticate with Google Cloud Services."],["The `UnifiedCredentialsOption` can be used to override default credentials, such as by explicitly loading a service account key file."],["Examples are provided for `redis_cluster_v1::CloudRedisClusterClient` and `redis_v1::CloudRedisClient`, demonstrating how to implement service account authentication."],["The document lists various versions of the C++ Redis documentation, ranging from version 2.11.0 up to the latest release candidate 2.37.0-rc, each with specific links to override authentication details."],["The document recommends consulting the best practices guide for managing service account keys for more information and highlights the \"Authentication Components\" section as a resource for creating `google::cloud::Credentials` objects."]]],[]]