You are developing an Express.js application that needs to validate user input on a specific route. How would you implement middleware to efficiently validate input for that route?
- Use the app.use method to add a middleware function to the specific route that performs input validation.
- Include the validation logic directly within the route handler function for the specific route.
- Define a separate middleware function and use app.use to apply it globally for all routes.
- Implement input validation as a part of the route's URL parameters.
To efficiently validate user input for a specific route in Express.js, you should create a dedicated middleware function using app.use and apply it only to the specific route in question. This approach keeps the route handler clean and separates concerns. The other options are less efficient or incorrect approaches.
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