Which component is responsible for creating tasks in Celery when they are launched?

In Celery, the component responsible for creating tasks when they are launched is called the producer. When you invoke a task, for example task.delay(), Celery serializes the task call and places it in a message queue (broker), such as RabbitMQ or Redis.

The process looks like this:

1. Calling a task in code creates a task object with parameters.
2. The producer serializes this task and sends it to the message broker.
3. Celery workers subscribe to the queue and receive tasks for execution.

Thus, the producer is part of the Celery client responsible for packaging and sending tasks to the queue.

Example of invoking a task:

from celery import Celery

app = Celery('tasks', broker='redis://localhost')

@app.task
def add(x, y):
    return x + y

# Creating and sending a task to the queue
result = add.delay(4, 6)