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Next, we can use Passport.js middleware to authenticate incoming requests. Here’s an example of how to do that:
In the example above, the /profile route requires authentication using the local strategy set up earlier. If the user is authenticated, their profile is returned in the response.
To implement authorization, we can add a middleware function that checks the user’s role or permissions before allowing them to access certain routes. Here’s an example:
In the example above, the requireAdmin middleware function checks if the user has the “admin” role before allowing them to access the /admin route. If the user is not authorized, a 403 Forbidden response is sent.
That’s a basic example of how to implement authentication and authorization in a RESTful API built with Node.js and Express.js using Passport.js.
Query strings are commonly used for filtering, searching, or sorting data, and the server can access the values in the query string using the req.query object in Express.js.
On the other hand, request parameters are values that are part of the URL path itself. For example, in the following URL, the request parameter is “123”:
Request parameters are used to identify a specific resource or record, and the server can access the value of the request parameter using the req.params object in Express.js.
In summary, query strings are used for optional parameters, whereas request parameters are used for required parameters.
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