Async batch processing in Rest API - Interactive Code Practice

Practice - 5 Tasks

1fill in blank

easy

Complete the code to start an asynchronous batch job.

Rest API

response = client.post('/batch/start', json=[1])

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Atasks_list

B['tasks']

C{'tasks': tasks_list}

DNone

Attempts:

3 left

💡 Hint

Common Mistakes

Passing the tasks list directly without wrapping in a dictionary.

The batch start endpoint expects a JSON object with a 'tasks' key containing the list of tasks.

2fill in blank

medium

Complete the code to check the batch job status asynchronously.

Rest API

status = client.get(f'/batch/status/[1]').json()

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Abatch_id

Bjob_id

Ctask_id

Drequest_id

Attempts:

3 left

💡 Hint

Common Mistakes

Using task_id or request_id instead of batch_id.

The batch status endpoint requires the batch ID to check the job status.

3fill in blank

hard

Fix the error in the code to correctly retrieve batch results asynchronously.

Rest API

results = client.get(f'/batch/results/[1]').json()['[2]']

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Adata

Bresults

Cbatch_id

Dtask_results

Attempts:

3 left

💡 Hint

Common Mistakes

Using task ID instead of batch ID.

Using wrong JSON key to access results.

The batch results endpoint requires the batch ID to fetch results. The JSON key holding results is 'results'.

4fill in blank

hard

Fill both blanks to create a dictionary comprehension that filters completed tasks with results.

Rest API

completed_tasks = {task['id']: task['result'] for task in tasks if task['status'] [1] 'completed' and task['result'] [2] None}

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A==

B!=

C<

D>

Attempts:

3 left

💡 Hint

Common Mistakes

Using wrong comparison operators causing incorrect filtering.

The comprehension filters tasks where status equals 'completed' and result is not None.

5fill in blank

hard

Fill all three blanks to build a dictionary of task IDs and their results for tasks with errors.

Rest API

error_tasks = {task['id']: task['error_message'] for task in tasks if task['status'] [2] 'error' and task.get('{{BLANK_3}}') is not None}

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A{task['id']: task['error_message']}

B==

C'error_message'

D[task['id'], task['error_message']]

Attempts:

3 left

💡 Hint

Common Mistakes

Using list instead of dictionary comprehension.

Wrong status check operator.

The dictionary comprehension collects task IDs and their error messages for tasks with status 'error' and a non-empty error message.