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 2025-03-14 UTC."],[[["This document provides instructions on how to override the default authentication credentials used by client libraries to access Google Cloud Services, which typically rely on Application Default Credentials."],["You can override the default credentials by utilizing the `UnifiedCredentialsOption` and loading a service account key file, as demonstrated in the provided code example."],["The latest release candidate version available is 2.37.0-rc, while the base version displayed is 2.27.0."],["There are several previous versions of documentation available, starting from version 2.36.0 down to 2.11.0."],["Examples for overriding authentication are provided for `redis_cluster_v1::CloudRedisClusterClient` and `redis_v1::CloudRedisClient`, and additional information can be found in the \"Best practices for managing service account keys\" guide and \"Authentication Components\" documentation."]]],[]]
