A RetroSearch Logo

Home - News ( United States | United Kingdom | Italy | Germany ) - Football scores

Search Query:

Showing content from https://cloud.google.com/cpp/docs/reference/spanner/2.11.0/spanner-auth-example below:

C++ Client Libraries | Google Cloud

Skip to main content

Stay organized with collections Save and categorize content based on your preferences.

Override the authentication configuration

You can override this default using google::cloud::UnifiedCredentialsOption. The following example shows how to explicitly load a service account key file.

  namespace spanner = ::google::cloud::spanner;
  [](std::string const& project_id, std::string const& instance_id,
     std::string const& database_id, std::string const& keyfile) {
    auto is = std::ifstream(keyfile);
    is.exceptions(std::ios::badbit);
    auto contents = std::string(std::istreambuf_iterator<char>(is.rdbuf()), {});
    auto options =
        google::cloud::Options{}.set<google::cloud::UnifiedCredentialsOption>(
            google::cloud::MakeServiceAccountCredentials(contents));
    return spanner::Client(spanner::MakeConnection(
        spanner::Database(project_id, instance_id, database_id), options));
  }

Keep in mind that we chose this as an example because it is relatively easy to understand. Consult the [Best practices for managing service account keys] guide for more details.

Follow these links to find examples for other *Client classes:

Except as otherwise noted, the content of this page is licensed under the Creative Commons Attribution 4.0 License, and code samples are licensed under the Apache 2.0 License. For details, see the Google Developers Site Policies. Java is a registered trademark of Oracle and/or its affiliates.

Last updated 2025-08-14 UTC.

[[["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 2025-08-14 UTC."],[[["This webpage provides documentation and examples for various versions of the Spanner C++ client library, ranging from version 2.11.0 up to the latest release candidate 2.37.0-rc."],["The main content focuses on how to override the default authentication configuration using `google::cloud::UnifiedCredentialsOption` and provides an example of loading a service account key file."],["The documentation highlights best practices for managing service account keys, suggesting that the provided example is for illustrative purposes and users should consult the best practices guide."],["Links to additional examples for `DatabaseAdminClient` and `InstanceAdminClient` classes are provided, demonstrating authentication with a service account for these clients."],["A comprehensive list of previous versions with links to their respective documentation are available, such as version 2.36.0, 2.35.0 and so on."]]],[]]

RetroSearch is an open source project built by @garambo | Open a GitHub Issue

Search and Browse the WWW like it's 1997 | Search results from DuckDuckGo

HTML: 3.2 | Encoding: UTF-8 | Version: 0.7.4