You should only use this middleware on the route Amazon will be calling for your skill. To do this you can do something like this:
```swift
import Checkpoint
…
let alexa = router.grouped(Checkpoint.self)
//Alexa.self would be your struct you use to decode the request send by Amazon to your service
//You would need to most likely return a json following the specifications Amazon set
alexa.post(Alexa.self, at: “alexa”) { req, alexa -> String in
//do stuff with alexa and return the proper response
return “Hi Alexa!”
}
## Authors
* **Austin Astorga** - *Main developer* - [My Github](https://github.com/aaastorga)
## License
This project is licensed under the MIT License - see the [LICENSE.md](//dnrops/checkpoint/tree/master/LICENSE.md) file for details
## Acknowledgments
* Vapor Discord (for helping me with all my issues <3)
* Shoutout to @vzsg for helping me with all the certificate stuff! Appreciate it.
Checkpoint verifies incoming Alexa requests as requested by Amazon - Amazon doc
Usage
Package.swiftadd and add to dependencies//Alexa.self would be your struct you use to decode the request send by Amazon to your service //You would need to most likely return a json following the specifications Amazon set alexa.post(Alexa.self, at: “alexa”) { req, alexa -> String in //do stuff with alexa and return the proper response return “Hi Alexa!” }