Bibliothèques clientes Document AI Warehouse

Cette page explique comment débuter avec les bibliothèques clientes Cloud pour l'API Document AI Warehouse. Les bibliothèques clientes facilitent l'accès aux APIGoogle Cloud à l'aide d'un langage compatible. Bien que vous puissiez utiliser directement les APIGoogle Cloud en envoyant des requêtes brutes au serveur, les bibliothèques clientes vous simplifient la tâche en réduisent considérablement la quantité de code à écrire.

Pour en savoir plus sur les bibliothèques clientes Cloud et les anciennes bibliothèques clientes des API Google, consultez la page Présentation des bibliothèques clientes.

Installer la bibliothèque cliente

C++

Pour en savoir plus sur les exigences de cette bibliothèque cliente et installer des dépendances, consultez la page Configurer un environnement de développement C++.

Java

If you are using Maven, add the following to your pom.xml file. For more information about BOMs, see The Google Cloud Platform Libraries BOM.

<dependencyManagement>
  <dependencies>
    <dependency>
      <groupId>com.google.cloud</groupId>
      <artifactId>libraries-bom</artifactId>
      <version>26.76.0</version>
      <type>pom</type>
      <scope>import</scope>
    </dependency>
  </dependencies>
</dependencyManagement>

<dependencies>
  <dependency>
    <groupId>com.google.cloud</groupId>
    <artifactId>google-cloud-contentwarehouse</artifactId>
  </dependency>
</dependencies>

If you are using Gradle, add the following to your dependencies:

implementation 'com.google.cloud:google-cloud-contentwarehouse:0.81.0'

If you are using sbt, add the following to your dependencies:

libraryDependencies += "com.google.cloud" % "google-cloud-contentwarehouse" % "0.81.0"

If you're using Visual Studio Code or IntelliJ, you can add client libraries to your project using the following IDE plugins:

The plugins provide additional functionality, such as key management for service accounts. Refer to each plugin's documentation for details.

Pour en savoir plus, consultez Configurer un environnement de développement Java.

Node.js

npm install @google-cloud/contentwarehouse

Pour en savoir plus, consultez la section Configurer un environnement de développement Node.js.

Python

pip install --upgrade google-cloud-contentwarehouse

Pour en savoir plus, consultez la page Configurer un environnement de développement Python.

Configurer l'authentification

Pour authentifier les appels aux API Google Cloud , les bibliothèques clientes utilisent le service Identifiants par défaut de l'application (ADC). Les bibliothèques recherchent des identifiants dans un ensemble d'emplacements définis et les utilisent pour authentifier les requêtes adressées à l'API. Grâce à ADC, vous pouvez mettre des identifiants à disposition de votre application dans divers environnements, tels que l'environnement de développement ou de production local, sans avoir à modifier le code de votre application.

Pour les environnements de production, la façon de configurer ADC dépend du service et du contexte. Pour en savoir plus, consultez Configurer le service Identifiants par défaut de l'application.

Pour un environnement de développement local, vous pouvez configurer ADC avec les identifiants associés à votre compte Google :

  1. Install the Google Cloud CLI. After installation, initialize the Google Cloud CLI by running the following command: 

    gcloud init

    If you're using an external identity provider (IdP), you must first sign in to the gcloud CLI with your federated identity.

  2. If you're using a local shell, then create local authentication credentials for your user account: 

    gcloud auth application-default login

    You don't need to do this if you're using Cloud Shell.

    If an authentication error is returned, and you are using an external identity provider (IdP), confirm that you have signed in to the gcloud CLI with your federated identity.

    Un écran de connexion s'affiche. Une fois que vous êtes connecté, vos identifiants sont stockés dans le fichier d'identifiants local utilisé par ADC.

Utiliser la bibliothèque cliente

L'exemple suivant vous montre comment utiliser la bibliothèque cliente.

C++


#include "google/cloud/contentwarehouse/v1/document_client.h"
#include "google/cloud/location.h"
#include <iostream>

int main(int argc, char* argv[]) try {
  if (argc != 3) {
    std::cerr << "Usage: " << argv[0] << " project-number location-id\n";
    return 1;
  }

  auto const location = google::cloud::Location(argv[1], argv[2]);

  namespace contentwarehouse = ::google::cloud::contentwarehouse_v1;
  auto client = contentwarehouse::DocumentServiceClient(
      contentwarehouse::MakeDocumentServiceConnection());

  for (auto md : client.SearchDocuments(location.FullName())) {
    if (!md) throw std::move(md).status();
    std::cout << md->DebugString() << "\n";
  }

  return 0;
} catch (google::cloud::Status const& status) {
  std::cerr << "google::cloud::Status thrown: " << status << "\n";
  return 1;
}

Java

public class QuickStart {

  public static void main(String[] args)
      throws IOException, InterruptedException, ExecutionException, TimeoutException {
    // TODO(developer): Replace these variables before running the sample.
    String projectId = "your-project-id";
    String location = "your-region"; // Format is "us" or "eu".
    String userId = "your-user-id"; // Format is user:<user-id>
    quickStart(projectId, location, userId);
  }

  public static void quickStart(String projectId, String location, String userId)
      throws IOException, InterruptedException, ExecutionException, TimeoutException {
    String projectNumber = getProjectNumber(projectId);

    String endpoint = "contentwarehouse.googleapis.com:443";
    if (!"us".equals(location)) {
      endpoint = String.format("%s-%s", location, endpoint);
    }
    DocumentSchemaServiceSettings documentSchemaServiceSettings = 
         DocumentSchemaServiceSettings.newBuilder().setEndpoint(endpoint).build(); 

    // Create a Schema Service client
    try (DocumentSchemaServiceClient documentSchemaServiceClient =
        DocumentSchemaServiceClient.create(documentSchemaServiceSettings)) {
      /*  The full resource name of the location, e.g.:
      projects/{project_number}/locations/{location} */
      String parent = LocationName.format(projectNumber, location);

      /* Create Document Schema with Text Type Property Definition
       * More detail on managing Document Schemas: 
       * https://cloud.google.com/document-warehouse/docs/manage-document-schemas */
      DocumentSchema documentSchema = DocumentSchema.newBuilder()
          .setDisplayName("My Test Schema")
          .setDescription("My Test Schema's Description")
          .addPropertyDefinitions(
            PropertyDefinition.newBuilder()
              .setName("test_symbol")
              .setDisplayName("Searchable text")
              .setIsSearchable(true)
              .setTextTypeOptions(TextTypeOptions.newBuilder().build())
              .build()).build();

      // Define Document Schema request
      CreateDocumentSchemaRequest createDocumentSchemaRequest =
          CreateDocumentSchemaRequest.newBuilder()
            .setParent(parent)
            .setDocumentSchema(documentSchema).build();

      // Create Document Schema
      DocumentSchema documentSchemaResponse =
          documentSchemaServiceClient.createDocumentSchema(createDocumentSchemaRequest); 


      // Create Document Service Client Settings
      DocumentServiceSettings documentServiceSettings = 
          DocumentServiceSettings.newBuilder().setEndpoint(endpoint).build();

      // Create Document Service Client and Document with relevant properties 
      try (DocumentServiceClient documentServiceClient =
          DocumentServiceClient.create(documentServiceSettings)) {
        TextArray textArray = TextArray.newBuilder().addValues("Test").build();
        Document document = Document.newBuilder()
              .setDisplayName("My Test Document")
              .setDocumentSchemaName(documentSchemaResponse.getName())
              .setPlainText("This is a sample of a document's text.")
              .addProperties(
                Property.newBuilder()
                  .setName(documentSchema.getPropertyDefinitions(0).getName())
                  .setTextValues(textArray)).build();

        // Define Request Metadata for enforcing access control
        RequestMetadata requestMetadata = RequestMetadata.newBuilder()
            .setUserInfo(
            UserInfo.newBuilder()
              .setId(userId).build()).build();

        // Define Create Document Request 
        CreateDocumentRequest createDocumentRequest = CreateDocumentRequest.newBuilder()
            .setParent(parent)
            .setDocument(document)
            .setRequestMetadata(requestMetadata)
            .build();

        // Create Document
        CreateDocumentResponse createDocumentResponse =
            documentServiceClient.createDocument(createDocumentRequest);

        System.out.println(createDocumentResponse.getDocument().getName());
        System.out.println(documentSchemaResponse.getName());
      }
    }
  }

  private static String getProjectNumber(String projectId) throws IOException { 
    try (ProjectsClient projectsClient = ProjectsClient.create()) { 
      ProjectName projectName = ProjectName.of(projectId); 
      Project project = projectsClient.getProject(projectName);
      String projectNumber = project.getName(); // Format returned is projects/xxxxxx
      return projectNumber.substring(projectNumber.lastIndexOf("/") + 1);
    } 
  }
}

Node.js

/**
 * This snippet has been automatically generated and should be regarded as a code template only.
 * It will require modifications to work.
 * It may require correct/in-range values for request initialization.
 * TODO(developer): Uncomment these variables before running the sample.
 */
/**
 *  Required. The parent, which owns this collection of document.
 *  Format: projects/{project_number}/locations/{location}.
 */
// const parent = 'abc123'
/**
 *  The maximum number of rule sets to return. The service may return
 *  fewer than this value.
 *  If unspecified, at most 50 rule sets will be returned.
 *  The maximum value is 1000; values above 1000 will be coerced to 1000.
 */
// const pageSize = 1234
/**
 *  A page token, received from a previous `ListRuleSets` call.
 *  Provide this to retrieve the subsequent page.
 *  When paginating, all other parameters provided to `ListRuleSets`
 *  must match the call that provided the page token.
 */
// const pageToken = 'abc123'

// Imports the Contentwarehouse library
const {RuleSetServiceClient} = require('@google-cloud/contentwarehouse').v1;

// Instantiates a client
const contentwarehouseClient = new RuleSetServiceClient();

async function callListRuleSets() {
  // Construct request
  const request = {
    parent,
  };

  // Run request
  const iterable = await contentwarehouseClient.listRuleSetsAsync(request);
  for await (const response of iterable) {
    console.log(response);
  }
}

callListRuleSets();

Python


from google.cloud import contentwarehouse

# TODO(developer): Uncomment these variables before running the sample.
# project_number = 'YOUR_PROJECT_NUMBER'
# location = 'YOUR_PROJECT_LOCATION' # Format is 'us' or 'eu'
# user_id = "user:xxxx@example.com" # Format is "user:xxxx@example.com"


def quickstart(project_number: str, location: str, user_id: str) -> None:
    # Create a Schema Service client
    document_schema_client = contentwarehouse.DocumentSchemaServiceClient()

    # The full resource name of the location, e.g.:
    # projects/{project_number}/locations/{location}
    parent = document_schema_client.common_location_path(
        project=project_number, location=location
    )

    # Define Schema Property of Text Type
    property_definition = contentwarehouse.PropertyDefinition(
        name="stock_symbol",  # Must be unique within a document schema (case insensitive)
        display_name="Searchable text",
        is_searchable=True,
        text_type_options=contentwarehouse.TextTypeOptions(),
    )

    # Define Document Schema Request
    create_document_schema_request = contentwarehouse.CreateDocumentSchemaRequest(
        parent=parent,
        document_schema=contentwarehouse.DocumentSchema(
            display_name="My Test Schema",
            property_definitions=[property_definition],
        ),
    )

    # Create a Document schema
    document_schema = document_schema_client.create_document_schema(
        request=create_document_schema_request
    )

    # Create a Document Service client
    document_client = contentwarehouse.DocumentServiceClient()

    # The full resource name of the location, e.g.:
    # projects/{project_number}/locations/{location}
    parent = document_client.common_location_path(
        project=project_number, location=location
    )

    # Define Document Property Value
    document_property = contentwarehouse.Property(
        name=document_schema.property_definitions[0].name,
        text_values=contentwarehouse.TextArray(values=["GOOG"]),
    )

    # Define Document
    document = contentwarehouse.Document(
        display_name="My Test Document",
        document_schema_name=document_schema.name,
        plain_text="This is a sample of a document's text.",
        properties=[document_property],
    )

    # Define Request
    create_document_request = contentwarehouse.CreateDocumentRequest(
        parent=parent,
        document=document,
        request_metadata=contentwarehouse.RequestMetadata(
            user_info=contentwarehouse.UserInfo(id=user_id)
        ),
    )

    # Create a Document for the given schema
    response = document_client.create_document(request=create_document_request)

    # Read the output
    print(f"Rule Engine Output: {response.rule_engine_output}")
    print(f"Document Created: {response.document}")

Autres ressources

C++

La liste suivante contient des liens vers d'autres ressources liées à la bibliothèque cliente pour C++ :

Java

La liste suivante contient des liens vers d'autres ressources liées à la bibliothèque cliente pour Java :

Node.js

La liste suivante contient des liens vers d'autres ressources liées à la bibliothèque cliente pour Node.js :

Python

La liste suivante contient des liens vers d'autres ressources liées à la bibliothèque cliente pour Python :