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Explain the concept of RouteGroup and its usage in Slim Framework.

Explain the concept of RouteGroup and its usage in Slim Framework.

Answer: In the Slim Framework, a RouteGroup is a way to group related routes together under a common prefix or middleware. This allows developers to organize routes more efficiently and apply common settings, such as middleware, across multiple routes.

Usage:
1. Grouping: You can define a set of routes that share the same URI prefix, making it easier to manage and route similar requests.
2. Middleware: You can apply middleware to all routes within the group, enabling you to enforce authentication, logging, or other behaviors without repeating code.
3. Improved Readability: It enhances the readability of your routing definitions, as it clearly indicates related routes.

Example:
“`php
$app->group(‘/admin’, function () {
$this->get(‘/users’, ‘UserController:index’);
$this->post(‘/users’, ‘UserController:create’);
})->add(new AdminMiddleware());
“`
In this example, all admin-related routes are grouped under `/admin` and share the `AdminMiddleware`.

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