[Solved] When converting a Flask route to use async def, what must you ensure about the functions it calls? — Ans: They should be awaitable or asynchronous functions | Flask

Flask - Ecosystem and Patterns

When converting a Flask route to use async def, what must you ensure about the functions it calls?

AThey should return a Flask Response object immediately

BThey must be synchronous functions only

CThey should be awaitable or asynchronous functions

DThey must not use any I/O operations

Step-by-Step Solution

Solution:

Step 1: Understand async functions
Async routes should await asynchronous functions to avoid blocking.
Step 2: Check called functions
Ensure functions called inside async routes are awaitable to benefit from async concurrency.
Final Answer:
They should be awaitable or asynchronous functions -> Option C
Quick Check:
Async routes require awaitable calls [OK]

Quick Trick: Async routes must await async functions [OK]

Common Mistakes:

MISTAKES

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When converting a Flask route to use async def, what must you ensure about the functions it calls?