Absinthe plug to support Apollo upload format
If available in Hex, the package can be installed
by adding absinthe_upload to your list of dependencies in mix.exs:
def deps do
[
{:absinthe_upload, "~> 0.1.0"}
]
endDocumentation can be generated with ExDoc and published on HexDocs. Once published, the docs can be found at https://hexdocs.pm/absinthe_upload.
Add the plug to a Phoenix app:
# phoenix_app_web/router.ex
defmodule PhoenixAppWeb.Router do
use PhoenixAppWeb, :router
pipeline :api do
plug(:accepnts, ["json"])
plug(Absinthe.Upload)
...
scope "/graphql" do
forward("/", Absinthe.Plug,
...
Add the plug to a Plug router:
# app/router.ex
defmodule App.Router do
plug(Absinthe.Upload)
...
Requests with file uploads from Apollo clients has "map" and "operations"
%{
"0" => %Plug.Upload{
content_type: "text/rtf",
filename: "San Francisco.rtf",
path: "/tmp/plug-1605/multipart-1605199833-755605321722586-2"
},
"map" => "{\"0\":[\"variables.attachment\"]}",
"operations" => "{\"query\":\"mutation DemoUpload($attachment: Upload) {\\n demoUpload(attachment: $attachment)\\n}\",\"variables\":{\"attachment\":null},\"operationName\":\"DemoUpload\"}"
}
The plug will transform the request to a format Absinthe understands
%{
"attachment" => %Plug.Upload{
content_type: "text/rtf",
filename: "San Francisco.rtf",
path: "/tmp/plug-1605/multipart-1605199833-755605321722586-2"
},
"query" => "mutation DemoUpload($attachment: Upload) { demoUpload(attachment: $attachment)}"
}
MIX_ENV=test mix test --cover