README

The Task Engine SDK is a PHP library that provides a simple interface to interact with the B2Sign Task Engine API. The SDK is designed to make it easy to create, update, and delete tasks, as well as to retrieve task information.

Installation

To install the Task Engine SDK, run the following command:

composer require b2sign/task-engine-sdk

Usage

To use the Task Engine SDK, you must first create an instance of the TaskEngine class. You can then use this instance to interact with the Task Engine API.

use B2Sign\TaskEngineSdk\TaskEngine;

$taskEngine = new TaskEngine('api-endpoint', 'your-app-key', 'your-app-secret');

Create a Task

To create a task, use the create method. This method takes an array of task data as its only argument.

$task = $taskEngine->setType('type_name')
    ->setCallbackUrl('https://your-callback-url.com')
    ->setPriority('normal')
    ->setUnique([ 'key' => 'value' ])
    ->setKeepAlive(true)
    ->setQueueData([
      'queue1' => [ 1, 2, 3 ],
      'queue2' => [ 'a', 'b', 'c' ],
    ])
    ->setData([
      'foo' => 'bar',
    ])
    ->setTask('task-id')  // Optional for creating keep-alive tasks
    ->create();

Reference

• setType(string $type): REQUIRED The type of the task.
• setCallbackUrl(string $callbackUrl): REQUIRED The URL to which the Task Engine will send a POST request when the task is completed.
• setPriority(string $priority): (Optional, default: normal) The priority of the task. Possible values are low, normal, and high.
• setUnique(array $unique | false): (Optional, default: false) An array of key-value pairs that uniquely identify the task, or false if the task is not unique.
• setKeepAlive(bool $keepAlive): (Optional, default: false) Whether the task should be kept alive until it is completed.
• setQueueData(array $queueData): (Optional) An array of key-value pairs that will be stored for the task.
• setData(array $data): (Optional) An array of key-value pairs that will be stored for the task.
• setTask(string $taskId): (Optional) The ID of the task to create when creating a keep-alive task. Typically used to update the task queue data.

Update a Task

To update a task, use the update method. This method takes the task ID as its only argument.

$taskId = 'task-id';

$task = $taskEngine->setTask($taskId)
    ->setPriority('high')
    ->update();

Log

To log a message for a task, use the log method. This method takes the task ID and the message as its arguments.

$taskId = 'task-id';

$task = $taskEngine->setTask($taskId)
    ->log('This is a log message', 'success');

Reference

• log(string $message, string $level = null)
  • $message: The log message.
  • $level: The log level. Possible values are success, info, warning, and error. Default is info.

Complete / Fail a Task

To complete or fail a task, use the complete or fail method. These methods take the task ID as their only argument.

$taskId = 'task-id';

$task = $taskEngine->setTask($taskId)
    ->complete('Completed successfully');

$task = $taskEngine->setTask($taskId)
    ->fail('Failed to complete task');

Get a Task

To get a task, use the get method. This method takes the task ID as its only argument.

$taskId = 'task-id';

$task = $taskEngine->setTask($taskId)
    ->get();

Callback Response

When the Task Engine sends a POST request to the callback URL, the response will be a JSON string with a code and message. You can use the TaskEngine::response method to create a response object.

// Success response
return TaskEngine::response();

// Success response with message
return TaskEngine::response()->withMessage('Task processed successfully');

// Error response with error
return TaskEngine::response()->withError('An error occurred');

// Error response with errors
return TaskEngine::response()->withErrors([
    'Error message 1',
    'Error message 2',
]);

License

The Task Engine SDK is open-source software licensed under the MIT license.