[Solved] Consider this NestJS middleware:function timingLogger(req, res, next) { console.log('Start'); next(); console.log('End'); }Which message will appear first in the console when a request is processed? | NestJS

NestJS - Middleware

Consider this NestJS middleware:

function timingLogger(req, res, next) { console.log('Start'); next(); console.log('End'); }

Which message will appear first in the console when a request is processed?

A'Start'

B'End'

CBoth appear simultaneously

DNeither appears

Step-by-Step Solution

Solution:

Step 1: Analyze middleware flow
Console logs 'Start' before calling next().
Step 2: next() passes control to next middleware or handler
After next() completes, 'End' is logged.
Final Answer:
'Start' is logged first -> Option A
Quick Check:
Logs before next() run first [OK]

Quick Trick: Logs before next() run first [OK]

Common Mistakes:

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