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  using System;
  using Google.Api.Gax.ResourceNames;
  using Google.Cloud.RecaptchaEnterprise.V1;

  public class CreateAssessmentSample
  {
      // Create an assessment to analyze the risk of a UI action.
      // projectID: Google Cloud project ID.
      // recaptchaKey: reCAPTCHA key obtained by registering a domain or an app to use reCAPTCHA Enterprise.
      // token: The token obtained from the client on passing the recaptchaKey.
      // recaptchaAction: Action name corresponding to the token.
      public void createAssessment(string projectID = "project-id", string recaptchaKey = "recaptcha-key",
          string token = "action-token", string recaptchaAction = "action-name")
      {

          // Create the client.
          // TODO: To avoid memory issues, move this client generation outside
          // of this example, and cache it (recommended) or call client.close()
          // before exiting this method.
          RecaptchaEnterpriseServiceClient client = RecaptchaEnterpriseServiceClient.Create();

          ProjectName projectName = new ProjectName(projectID);

          // Build the assessment request.
          CreateAssessmentRequest createAssessmentRequest = new CreateAssessmentRequest()
          {
              Assessment = new Assessment()
              {
                  // Set the properties of the event to be tracked.
                  Event = new Event()
                  {
                      SiteKey = recaptchaKey,
                      Token = token,
                      ExpectedAction = recaptchaAction
                  },
              },
              ParentAsProjectName = projectName
          };

          Assessment response = client.CreateAssessment(createAssessmentRequest);

          // Check if the token is valid.
          if (response.TokenProperties.Valid == false)
          {
              System.Console.WriteLine("The CreateAssessment call failed because the token was: " +
                  response.TokenProperties.InvalidReason.ToString());
              return;
          }

          // Check if the expected action was executed.
          if (response.TokenProperties.Action != recaptchaAction)
          {
              System.Console.WriteLine("The action attribute in reCAPTCHA tag is: " +
                  response.TokenProperties.Action.ToString());
              System.Console.WriteLine("The action attribute in the reCAPTCHA tag does not " +
                  "match the action you are expecting to score");
              return;
          }

          // Get the risk score and the reasons.
          // For more information on interpreting the assessment,
          // see: https://cloud.google.com/recaptcha/docs/interpret-assessment
          System.Console.WriteLine("The reCAPTCHA score is: " + ((decimal)response.RiskAnalysis.Score));

          foreach (RiskAnalysis.Types.ClassificationReason reason in response.RiskAnalysis.Reasons)
          {
              System.Console.WriteLine(reason.ToString());
          }
      }

      public static void Main(string[] args)
      {
          new CreateAssessmentSample().createAssessment();
      }
  }

  import (
    "context"
    "fmt"

    recaptcha "cloud.google.com/go/recaptchaenterprise/v2/apiv1"
    recaptchapb "cloud.google.com/go/recaptchaenterprise/v2/apiv1/recaptchaenterprisepb"
  )

  func main() {
    // TODO(developer): Replace these variables before running the sample.
    projectID := "project-id"
    recaptchaKey := "recaptcha-key"
    token := "action-token"
    recaptchaAction := "action-name"

    createAssessment(projectID, recaptchaKey, token, recaptchaAction)
  }

  /**
  * Create an assessment to analyze the risk of a UI action.
  *
  * @param projectID: Google Cloud project ID
  * @param recaptchaKey: reCAPTCHA key obtained by registering a domain or an app to use the services of reCAPTCHA Enterprise.
  * @param token: The token obtained from the client on passing the recaptchaKey.
  * @param recaptchaAction: Action name corresponding to the token.
  */
  func createAssessment(projectID string, recaptchaKey string, token string, recaptchaAction string) {

    // Create the recaptcha client.
    // TODO: To avoid memory issues, move this client generation outside
    // of this example, and cache it (recommended) or call client.close()
    // before exiting this method.
    ctx := context.Background()
    client, err := recaptcha.NewClient(ctx)
    if err != nil {
      fmt.Printf("Error creating reCAPTCHA client\n")
    }
    defer client.Close()

    // Set the properties of the event to be tracked.
    event := &recaptchapb.Event{
      Token:          token,
      SiteKey:        recaptchaKey,
    }

    assessment := &recaptchapb.Assessment{
      Event: event,
    }

    // Build the assessment request.
    request := &recaptchapb.CreateAssessmentRequest{
      Assessment: assessment,
      Parent:     fmt.Sprintf("projects/%s", projectID),
    }

    response, err := client.CreateAssessment(
      ctx,
      request)

    if err != nil {
      fmt.Printf("%v", err.Error())
    }

    // Check if the token is valid.
    if response.TokenProperties.Valid == false {
      fmt.Printf("The CreateAssessment() call failed because the token"+
         " was invalid for the following reasons: %v",
      response.TokenProperties.InvalidReason)
      return
    }

    // Check if the expected action was executed.
    if response.TokenProperties.Action == recaptchaAction {
      // Get the risk score and the reason(s).
      // For more information on interpreting the assessment,
      // see: https://cloud.google.com/recaptcha/docs/interpret-assessment
      fmt.Printf("The reCAPTCHA score for this token is:  %v",
        response.RiskAnalysis.Score)

      for _,reason := range response.RiskAnalysis.Reasons {
        fmt.Printf(reason.String()+"\n")
      }
      return
    }

    fmt.Printf("The action attribute in your reCAPTCHA tag does " +
        "not match the action you are expecting to score")
  }

  const {RecaptchaEnterpriseServiceClient} =
      require('@google-cloud/recaptcha-enterprise');

 /**
 * Create an assessment to analyze the risk of a UI action. Note that
 * this example does set error boundaries and returns `null` for
 * exceptions.
 *
 * projectID: Google Cloud project ID
 * recaptchaKey: reCAPTCHA key obtained by registering a domain or an app to use the services of reCAPTCHA Enterprise.
 * token: The token obtained from the client on passing the recaptchaKey.
 * recaptchaAction: Action name corresponding to the token.
 * userIpAddress: The IP address of the user sending a request to your backend is available in the HTTP request.
 * userAgent: The user agent is included in the HTTP request in the request header.
 * ja3: JA3 associated with the request.
 */
 async function createAssessment({
   projectID = "your-project-id",
   recaptchaKey = "your-recaptcha-key",
   token = "action-token",
   recaptchaAction = "action-name",
   userIpAddress = "user-ip-address",
   userAgent = "user-agent",
   ja3 = "ja3"
 }) {
   // Create the reCAPTCHA client & set the project path. There are multiple
   // ways to authenticate your client. For more information see:
   // https://cloud.google.com/docs/authentication
   // TODO: To avoid memory issues, move this client generation outside
   // of this example, and cache it (recommended) or call client.close()
   // before exiting this method.
   const client = new RecaptchaEnterpriseServiceClient();
   const projectPath = client.projectPath(projectID);

   // Build the assessment request.
   const request = ({
     assessment: {
       event: {
         token: token,
         siteKey: recaptchaKey,
         userIpAddress: userIpAddress,
         userAgent: userAgent,
         ja3: ja3,
       },
     },
     parent: projectPath,
   });

   // client.createAssessment() can return a Promise or take a Callback
   const [ response ] = await client.createAssessment(request);

   // Check if the token is valid.
   if (!response.tokenProperties.valid) {
    console.log("The CreateAssessment call failed because the token was: " +
      response.tokenProperties.invalidReason);

    return null;
   }

   // Check if the expected action was executed.
   // The `action` property is set by user client in the
   // grecaptcha.enterprise.execute() method.
   if (response.tokenProperties.action === recaptchaAction) {

    // Get the risk score and the reason(s).
    // For more information on interpreting the assessment,
    // see: https://cloud.google.com/recaptcha/docs/interpret-assessment
    console.log("The reCAPTCHA score is: " +
      response.riskAnalysis.score);

    response.riskAnalysis.reasons.forEach((reason) => {
      console.log(reason);
    });
    return response.riskAnalysis.score;
   } else {
    console.log("The action attribute in your reCAPTCHA tag " +
      "does not match the action you are expecting to score");
    return null;
   }
 }

  <?php

  // Include Google Cloud dependencies using Composer
  // composer require google/cloud-recaptcha-enterprise
  require 'vendor/autoload.php';

  use Google\Cloud\RecaptchaEnterprise\V1\RecaptchaEnterpriseServiceClient;
  use Google\Cloud\RecaptchaEnterprise\V1\Event;
  use Google\Cloud\RecaptchaEnterprise\V1\Assessment;
  use Google\Cloud\RecaptchaEnterprise\V1\TokenProperties\InvalidReason;

  /**
  * Create an assessment to analyze the risk of a UI action.
  * @param string $siteKey The key ID for the reCAPTCHA key (See https://cloud.google.com/recaptcha/docs/create-key)
  * @param string $token The user's response token for which you want to receive a reCAPTCHA score. (See https://cloud.google.com/recaptcha/docs/create-assessment#retrieve_token)
  * @param string $project Your Google Cloud project ID
  */
  function create_assessment(
     string $siteKey,
     string $token,
     string $project
  ): void {
  // TODO: To avoid memory issues, move this client generation outside
  // of this example, and cache it (recommended) or call client.close()
  // before exiting this method.
  $client = new RecaptchaEnterpriseServiceClient();
  $projectName = $client->projectName($project);

     $event = (new Event())
         ->setSiteKey($siteKey)
         ->setToken($token);

     $assessment = (new Assessment())
         ->setEvent($event);

     try {
         $response = $client->createAssessment(
             $projectName,
             $assessment
         );

         // You can use the score only if the assessment is valid,
         // In case of failures like re-submitting the same token, getValid() will return false
         if ($response->getTokenProperties()->getValid() == false) {
             printf('The CreateAssessment() call failed because the token was invalid for the following reason: ');
             printf(InvalidReason::name($response->getTokenProperties()->getInvalidReason()));
         } else {
             printf('The score for the protection action is:');
             printf($response->getRiskAnalysis()->getScore());

             // Optional: You can use the following methods to get more data about the token
             // Action name provided at token generation.
             // printf($response->getTokenProperties()->getAction() . PHP_EOL);
             // The timestamp corresponding to the generation of the token.
             // printf($response->getTokenProperties()->getCreateTime()->getSeconds() . PHP_EOL);
             // The hostname of the page on which the token was generated.
             // printf($response->getTokenProperties()->getHostname() . PHP_EOL);
         }
     } catch (exception $e) {
         printf('CreateAssessment() call failed with the following error: ');
         printf($e);
     }
  }

  // TODO(Developer): Replace the following before running the sample
  create_assessment(
     'YOUR_RECAPTCHA_KEY',
     'YOUR_USER_RESPONSE_TOKEN',
     'YOUR_GOOGLE_CLOUD_PROJECT_ID'
  );
?>