API Design With Standard Libraries | Dataford Interview Questions

Design an API and use standard library features where appropriate.

Implement a small in-memory key-value API supporting set, get, delete, and list operations. Keys are strings and values are JSON-compatible primitives. set must update an existing key without changing its original listing position.

Input/output contract: process_operations(operations) receives a list of operation objects and returns one result per operation. set returns "ok", get returns the stored value or None, delete returns a Boolean, and list returns keys in insertion order.

Constraints

0 <= operations.length <= 1000
Each operation has an op field containing set, get, delete, or list
Keys are non-empty strings
Values are JSON-compatible primitives
A list operation returns keys in their current insertion order

Function Signature

def process_operations(operations):

Your question is API Design With Standard Libraries. 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

Design an API and use standard library features where appropriate.

Constraints

0 <= operations.length <= 1000
Each operation has an op field containing set, get, delete, or list
Keys are non-empty strings
Values are JSON-compatible primitives
A list operation returns keys in their current insertion order

Function Signature

def process_operations(operations):

Your question is API Design With Standard Libraries. 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.