Debug a Flask Application | Dataford Interview Questions

Debug a provided Flask app.

Asked in the Technical 1 (Coding) stage. Implement the corrected behavior as a pure Python function that processes HTTP-style request objects without importing Flask.

The function receives a list of dictionaries with method, path, and json fields and returns response dictionaries containing status and body. Support POST /items, GET /items, and GET /items/<id>. Names must be non-empty strings after trimming, IDs start at 1, and invalid names return status 400.

Constraints

1 <= len(requests) <= 10^4
Each request contains exactly method, path, and json fields
method and path are strings
json is a JSON-compatible value
IDs are positive integers assigned sequentially within one function call

Function Signature

def debug_flask_app(requests):

Your question is Debug a Flask Application. Start with the requirements in the Question tab.

Run and submit as often as you like. When you're ready, talk me through your approach or go straight to the code.

Problem

Debug a provided Flask app.

Asked in the Technical 1 (Coding) stage. Implement the corrected behavior as a pure Python function that processes HTTP-style request objects without importing Flask.

Constraints

1 <= len(requests) <= 10^4
Each request contains exactly method, path, and json fields
method and path are strings
json is a JSON-compatible value
IDs are positive integers assigned sequentially within one function call

Function Signature

def debug_flask_app(requests):

Your question is Debug a Flask Application. Start with the requirements in the Question tab.

Run and submit as often as you like. When you're ready, talk me through your approach or go straight to the code.