NestJS - Middleware
Which of the following is a correct way to enable CORS globally in a NestJS application?
Which of the following is a correct way to enable CORS globally in a NestJS application?
easy📝 Conceptual Q2 of 15
Step-by-Step Solution
Solution:
Step 1: Recall NestJS global CORS enabling method
In NestJS, the built-in method to enable CORS globally isapp.enableCors().Step 2: Understand other options
Usingapp.use(cors())is possible but less idiomatic.app.set('cors', true)andapp.apply(cors()).forRoutes('*')are incorrect for global CORS enabling.Final Answer:
app.enableCors(); -> Option CQuick Check:
Global CORS = app.enableCors() [OK]
Quick Trick: Use app.enableCors() for global CORS in NestJS [OK]
Common Mistakes:
- Using app.use(cors()) instead of app.enableCors()
- Trying to set CORS with app.set() method
- Misusing app.apply() for global middleware
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