Google.Cloud.Dlp.V2 is a.NET client library for the Google Cloud Data Loss Prevention API.

Note: This documentation is for version 4.9.0 of the library. Some samples may not work with other versions.


Install the Google.Cloud.Dlp.V2 package from NuGet. Add it to your project in the normal way (for example by right-clicking on the project in Visual Studio and choosing "Manage NuGet Packages...").


When running on Google Cloud, no action needs to be taken to authenticate.

Otherwise, the simplest way of authenticating your API calls is to set up Application Default Credentials. The credentials will automatically be used to authenticate. See Set up Application Default Credentials for more details.

Getting started

All operations are performed through DlpServiceClient.

Create a client instance by calling the static Create or CreateAsync methods. Alternatively, use the builder class associated with each client class (e.g. DlpServiceClientBuilder for DlpServiceClient) as an easy way of specifying custom credentials, settings, or a custom endpoint. Clients are thread-safe, and we recommend using a single instance across your entire application unless you have a particular need to configure multiple client objects separately.

Using the REST (HTTP/1.1) transport

This library defaults to performing RPCs using gRPC using the binary Protocol Buffer wire format. However, it also supports HTTP/1.1 and JSON, for situations where gRPC doesn't work as desired. (This is typically due to an incompatible proxy or other network issue.) To create a client using HTTP/1.1, specify a RestGrpcAdapter reference for the GrpcAdapter property in the client builder. Sample code:

var client = new DlpServiceClientBuilder
    GrpcAdapter = RestGrpcAdapter.Default

For more details, see the transport selection page.

Sample code

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DlpServiceClient client = DlpServiceClient.Create();
DeidentifyContentRequest request = new DeidentifyContentRequest
    ParentAsProjectName = new ProjectName(projectId),
    Item = new ContentItem
        Value = "Hi! My phone number is 555-1234-567. Please call me!"
    DeidentifyConfig = new DeidentifyConfig
        InfoTypeTransformations = new InfoTypeTransformations
            Transformations =
                new InfoTypeTransformation
                    PrimitiveTransformation = new PrimitiveTransformation
                        ReplaceConfig = new ReplaceValueConfig
                            NewValue = new Value { StringValue = "(Redacted)" }
DeidentifyContentResponse response = client.DeidentifyContent(request);