vapor-docs/routing/controller

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---
currentMenu: routing-controller
---
# Introduction
Instead of defining all of your request handling logic as Closures in route files, you may wish to organize this behavior
using Controller classes. Controllers can group related request handling logic into a single class. Controllers are stored
in the Sources/App/Controllers directory.
# Basic Controller
## Defining Controllers
```swift
import Vapor
import HTTP
final class FirstController {
func index(request: Request) throws -> ResponseRepresentable {
return try JSON(node: [
"message": "This is FirstController's index method"
])
}
}
```
You can define a route to this controller action like so:
```swift
drop.get("getindex") {request in
return try FirstController().index(request: request)
}
```
Now, when a request matches the specified route URI, the Index method on the FirstController
class will be executed. Of course, the route parameters will also be passed to the method.
--------
# Resource Controllers
Vapor resource routing assigns the typical "CRUD" routes to a controller with a single line of code.
```swift
drop.resource("URI", Controller())
```
This single route declaration creates multiple routes to handle a variety of actions on the resource.
The generated controller will already have methods stubbed for each of these actions, including
notes informing you of the HTTP verbs and URIs they handle.
| Verb | URI | Action|
| ------------- |:-------------:| -----:|