File Upload

File uploading is very simple. Files are detected and turned into Amber::Router::File and put into a temporary file cache.
You can access files from the params macro using the files method.
This will return a Hash(String, Amber::Router::File) object that you can work with. The attributes you can access are:
file : File
filename : String?
headers : HTTP::Headers
creation_time : Time?
modification_time : Time?
read_time : Time?
size : UInt64?
For example, let's say we have a controller with a create method that we want someone to POST a JSON body that includes a file to upload:
# header: `accept: audio/mp3`
# POST body
# {
# "audio_file": // binary data for the audio file
# "file_name": "some_file_name.mp3"
# }
def create
uploaded_file = params.files["audio_file"]
uploaded_file_name = params["file_name"]
# Do whatever you want with the files and your method 😄
First you need an amber project generated with Amber CLI or from scratch.
You still require a form to upload your file, see views. Also see request and response.