Manage pages with the API

In most cases, you will use the console to manage pages. In advanced scenarios, you may wish to use the API to manage pages. This guide describes how to create, list, and delete pages using the API.

Create page

To create a page for your agent, call the create method on the Page type. Go to the Page API reference

Select a protocol and version for the Page reference:

Protocol	V3	V3beta1
REST	Page resource	Page resource
RPC	Page interface	Page interface
C++	PagesClient	Not available
C#	PagesClient	Not available
Go	PagesClient	Not available
Java	PagesClient	PagesClient
Node.js	PagesClient	PagesClient
PHP	Not available	Not available
Python	PagesClient	PagesClient
Ruby	Not available	Not available

Close

Java

To authenticate to Dialogflow, set up Application Default Credentials. For more information, see Set up authentication for a local development environment.

import com.google.cloud.dialogflow.cx.v3.CreatePageRequest;
import com.google.cloud.dialogflow.cx.v3.Page;
import com.google.cloud.dialogflow.cx.v3.PagesClient;
import java.io.IOException;

public class CreateSimplePage {

  public static void main(String[] args) throws IOException {
    // TODO(developer): Replace these variables before running the sample.
    String projectId = "my-project-id";
    String agentId = "my-agent-id";
    String flowId = "my-flow-id";
    String location = "my-location";
    String displayName = "my-display-name";

    createPage(projectId, agentId, flowId, location, displayName);
  }

  // DialogFlow API Create Page Sample.
  // Creates a page from the provided parameters
  public static Page createPage(
      String projectId, String agentId, String flowId, String location, String displayName)
      throws IOException {
    Page response;
    CreatePageRequest.Builder createRequestBuilder = CreatePageRequest.newBuilder();
    Page.Builder pageBuilder = Page.newBuilder();

    pageBuilder.setDisplayName(displayName);

    createRequestBuilder
        .setParent(
            "projects/"
                + projectId
                + "/locations/"
                + location
                + "/agents/"
                + agentId
                + "/flows/"
                + flowId)
        .setPage(pageBuilder);

    // Make API request to create page
    // Note: close() needs to be called on the PagesClient object to clean up resources
    // such as threads. In the example below, try-with-resources is used,
    // which automatically calls close().
    try (PagesClient client = PagesClient.create()) {
      response = client.createPage(createRequestBuilder.build());
      System.out.println("Successfully created page!");
      return response;
    }
  }

Node.js

To authenticate to Dialogflow, set up Application Default Credentials. For more information, see Set up authentication for a local development environment.

async function createPage(projectId, agentId, flowId, location, displayName) {
  const pagesClient = new PagesClient();

  const createPageRequest = {
    parent: `projects/${projectId}/locations/${location}/agents/${agentId}/flows/${flowId}`,
    page: {
      displayName: displayName,
    },
  };

  const response = await pagesClient.createPage(createPageRequest);
  console.log(response);
}

Python

To authenticate to Dialogflow, set up Application Default Credentials. For more information, see Set up authentication for a local development environment.

async def create_page(project_id, agent_id, flow_id, location, displayName):
    pages_client = PagesAsyncClient()

    page = Page()
    page.display_name = displayName

    request = CreatePageRequest()
    request.parent = (
        "projects/"
        + project_id
        + "/locations/"
        + location
        + "/agents/"
        + agent_id
        + "/flows/"
        + flow_id
    )
    request.page = page

    response = await pages_client.create_page(request=request)
    return response

List pages

To list the pages for your agent, call the list method on the Page type. Go to the Page API reference

Select a protocol and version for the Page reference:

Protocol	V3	V3beta1
REST	Page resource	Page resource
RPC	Page interface	Page interface
C++	PagesClient	Not available
C#	PagesClient	Not available
Go	PagesClient	Not available
Java	PagesClient	PagesClient
Node.js	PagesClient	PagesClient
PHP	Not available	Not available
Python	PagesClient	PagesClient
Ruby	Not available	Not available

Close

Java

To authenticate to Dialogflow, set up Application Default Credentials. For more information, see Set up authentication for a local development environment.

import com.google.cloud.dialogflow.cx.v3.ListPagesRequest;
import com.google.cloud.dialogflow.cx.v3.ListPagesRequest.Builder;
import com.google.cloud.dialogflow.cx.v3.Page;
import com.google.cloud.dialogflow.cx.v3.PagesClient;
import java.io.IOException;

public class ListPages {

  public static void main(String[] args) throws IOException {
    // TODO(developer): Replace these variables before running the sample.
    String projectId = "my-project-id";
    String agentId = "my-agent-id";
    String flowId = "my-flow-id";
    String location = "my-location";

    listPages(projectId, agentId, flowId, location);
  }

  // DialogFlow API List Pages Sample.
  // Lists all pages from the provided parameters
  public static void listPages(String projectId, String agentId, String flowId, String location)
      throws IOException {
    // Note: close() needs to be called on the PagesClient object to clean up resources
    // such as threads. In the example below, try-with-resources is used,
    // which automatically calls close().
    try (PagesClient client = PagesClient.create()) {
      Builder listRequestBuilder = ListPagesRequest.newBuilder();

      String parentPath =
          String.format(
              "projects/%s/locations/%s/agents/%s/flows/%s", projectId, location, agentId, flowId);
      listRequestBuilder.setParent(parentPath);
      listRequestBuilder.setLanguageCode("en");

      // Make API request to list all pages in the project
      for (Page element : client.listPages(listRequestBuilder.build()).iterateAll()) {
        System.out.println(element);
      }
    }
  }

Node.js

To authenticate to Dialogflow, set up Application Default Credentials. For more information, see Set up authentication for a local development environment.

async function listPages(projectId, agentId, flowId, location) {
  const pagesClient = new PagesClient();
  const listPageRequest = {
    parent: `projects/${projectId}/locations/${location}/agents/${agentId}/flows/${flowId}`,
    languageCode: 'en',
  };

  const response = await pagesClient.listPages(listPageRequest);
  console.log(response);
}

Python

To authenticate to Dialogflow, set up Application Default Credentials. For more information, see Set up authentication for a local development environment.

async def list_page(project_id, agent_id, flow_id, location):
    pages_client = PagesAsyncClient()

    request = ListPagesRequest()
    request.parent = (
        f"projects/{project_id}/locations/{location}/agents/{agent_id}/flows/{flow_id}"
    )

    request.language_code = "en"

    response = await pages_client.list_pages(request=request)
    return response

Delete pages

To delete a page for your agent, call the delete method on the Page type. Go to the Page API reference

Select a protocol and version for the Page reference:

Protocol	V3	V3beta1
REST	Page resource	Page resource
RPC	Page interface	Page interface
C++	PagesClient	Not available
C#	PagesClient	Not available
Go	PagesClient	Not available
Java	PagesClient	PagesClient
Node.js	PagesClient	PagesClient
PHP	Not available	Not available
Python	PagesClient	PagesClient
Ruby	Not available	Not available

Close

Java

To authenticate to Dialogflow, set up Application Default Credentials. For more information, see Set up authentication for a local development environment.

import com.google.cloud.dialogflow.cx.v3.DeletePageRequest;
import com.google.cloud.dialogflow.cx.v3.DeletePageRequest.Builder;
import com.google.cloud.dialogflow.cx.v3.PagesClient;
import java.io.IOException;

public class DeletePage {

  public static void main(String[] args) throws IOException {
    // TODO(developer): Replace these variables before running the sample.
    String projectId = "my-project-id";
    String agentId = "my-agent-id";
    String flowId = "my-flow-id";
    String pageId = "my-page-id";
    String location = "my-location";

    deletePage(projectId, agentId, flowId, pageId, location);
  }

  // DialogFlow API Delete Page Sample.
  // Deletes a page from the provided parameters
  public static void deletePage(
      String projectId, String agentId, String flowId, String pageId, String location)
      throws IOException {

    // Note: close() needs to be called on the PagesClient object to clean up resources
    // such as threads. In the example below, try-with-resources is used,
    // which automatically calls close().
    try (PagesClient client = PagesClient.create()) {
      Builder deleteRequestBuilder = DeletePageRequest.newBuilder();

      deleteRequestBuilder.setName(
          "projects/"
              + projectId
              + "/locations/"
              + location
              + "/agents/"
              + agentId
              + "/flows/"
              + flowId
              + "/pages/"
              + pageId);

      // Make API request to delete page
      client.deletePage(deleteRequestBuilder.build());
      System.out.println("Successfully deleted page!");
    }
  }

Node.js

To authenticate to Dialogflow, set up Application Default Credentials. For more information, see Set up authentication for a local development environment.

async function deletePage(projectId, agentId, flowId, pageId, location) {
  const pagesClient = new PagesClient();

  const req = {
    name: `projects/${projectId}/locations/${location}/agents/${agentId}/flows/${flowId}/pages/${pageId}`,
  };

  const response = await pagesClient.deletePage(req);
  console.log(response);
}

Python

To authenticate to Dialogflow, set up Application Default Credentials. For more information, see Set up authentication for a local development environment.

async def delete_page(project_id, agent_id, flow_id, page_id, location):
    pages_client = PagesAsyncClient()

    request = DeletePageRequest()
    request.name = f"projects/{project_id}/locations/{location}/agents/{agent_id}/flows/{flow_id}/pages/{page_id}"

    response = await pages_client.delete_page(request=request)
    return response