Delete task

Delete a task.

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For detailed documentation that includes this code sample, see the following:

Getting started with the Firestore in Datastore mode API

Code sample

C#

To learn how to install and use the client library for Datastore mode, see Datastore mode client libraries . For more information, see the Datastore mode C# API reference documentation .

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

  /// <summary> 
 /// Deletes a task entity. 
 /// </summary> 
 /// <param name="id">The ID of the task entity as given by Key.</param> 
 void 
  
 DeleteTask 
 ( 
 long 
  
 id 
 ) 
 { 
  
 _db 
 . 
 Delete 
 ( 
 _keyFactory 
 . 
 CreateKey 
 ( 
 id 
 )); 
 }

Go

To learn how to install and use the client library for Datastore mode, see Datastore mode client libraries . For more information, see the Datastore mode Go API reference documentation .

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

  import 
  
 ( 
  
 "context" 
  
 "log" 
  
 "cloud.google.com/go/datastore" 
 ) 
 // DeleteTask deletes the task with the given ID. 
 func 
  
 DeleteTask 
 ( 
 projectID 
  
 string 
 , 
  
 taskID 
  
 int64 
 ) 
  
 error 
  
 { 
  
 ctx 
  
 := 
  
 context 
 . 
 Background 
 () 
  
 client 
 , 
  
 err 
  
 := 
  
 datastore 
 . 
  NewClient 
 
 ( 
 ctx 
 , 
  
 projectID 
 ) 
  
 if 
  
 err 
  
 != 
  
 nil 
  
 { 
  
 log 
 . 
 Fatalf 
 ( 
 "Could not create datastore client: %v" 
 , 
  
 err 
 ) 
  
 } 
  
 return 
  
 client 
 . 
 Delete 
 ( 
 ctx 
 , 
  
 datastore 
 . 
  IDKey 
 
 ( 
 "Task" 
 , 
  
 taskID 
 , 
  
 nil 
 )) 
 }

Java

To learn how to install and use the client library for Datastore mode, see Datastore mode client libraries . For more information, see the Datastore mode Java API reference documentation .

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

  /** 
 * Deletes a task entity. 
 * 
 * @param id The ID of the task entity as given by {@link Key#id()} 
 * @throws DatastoreException if the delete fails 
 */ 
 void 
  
 deleteTask 
 ( 
 long 
  
 id 
 ) 
  
 { 
  
 datastore 
 . 
 delete 
 ( 
 keyFactory 
 . 
 newKey 
 ( 
 id 
 )); 
 }

Node.js

To learn how to install and use the client library for Datastore mode, see Datastore mode client libraries . For more information, see the Datastore mode Node.js API reference documentation .

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

  async 
  
 function 
  
 deleteTask 
 ( 
 taskId 
 ) 
  
 { 
  
 const 
  
 taskKey 
  
 = 
  
 datastore 
 . 
 key 
 ([ 
 'Task' 
 , 
  
 datastore 
 . 
 int 
 ( 
 taskId 
 )]); 
  
 await 
  
 datastore 
 . 
 delete 
 ( 
 taskKey 
 ); 
  
 console 
 . 
 log 
 ( 
 `Task 
 ${ 
 taskId 
 } 
 deleted successfully.` 
 ); 
 }

PHP

To learn how to install and use the client library for Datastore mode, see Datastore mode client libraries . For more information, see the Datastore mode PHP API reference documentation .

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

  use Google\Cloud\Datastore\DatastoreClient; 
 /** 
 * Delete a task with a given id. 
 * 
 * @param string $projectId The Google Cloud project ID. 
 * @param string $taskId 
 */ 
 function delete_task(string $projectId, string $taskId) 
 { 
 $datastore = new DatastoreClient(['projectId' => $projectId]); 
 $taskKey = $datastore->key('Task', $taskId); 
 $datastore->delete($taskKey); 
 printf('Task %d deleted successfully.' . PHP_EOL, $taskId); 
 }

Python

To learn how to install and use the client library for Datastore mode, see Datastore mode client libraries . For more information, see the Datastore mode Python API reference documentation .

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

  from 
  
 google.cloud 
  
 import 
  datastore 
 
 def 
  
 delete_task 
 ( 
 client 
 : 
  datastore 
 
 . 
  Client 
 
 , 
 task_id 
 : 
 str 
 | 
 int 
 ): 
 # Create a key for an entity of kind "Task", and with the supplied 
 # `task_id` as its Id 
 key 
 = 
 client 
 . 
  key 
 
 ( 
 "Task" 
 , 
 task_id 
 ) 
 # Use that key to delete its associated document, if it exists 
 client 
 . 
  delete 
 
 ( 
 key 
 )

Ruby

To learn how to install and use the client library for Datastore mode, see Datastore mode client libraries . For more information, see the Datastore mode Ruby API reference documentation .

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

  def 
  
 delete_task 
  
 task_id 
  
 require 
  
 "google/cloud/datastore" 
  
 datastore 
  
 = 
  
 Google 
 :: 
 Cloud 
 :: 
  Datastore 
 
 . 
  new 
 
  
 task 
  
 = 
  
 datastore 
 . 
 find 
  
 "Task" 
 , 
  
 task_id 
  
 datastore 
 . 
 delete 
  
 task 
 end

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Code sample

C#

Go

Java

Node.js

PHP

Python

Ruby

What's next

Delete task