What key to put into mix.exs for Application.spec(:app, :id)

Questions / Help
1

What do I have to put into mix.exs to see/use the key :id if calling:

 Application.spec(:app, :id)

Tried to enter just id: "some text"but no luck.

dbg( Application.spec(:app, :id)) output looks like it’s expecting a list:

Application.spec(:app, :id) #=> []

Link to spec/1:
https://hexdocs.pm/elixir/1.15.7/Application.html#spec/1

Is there a better documentation anywhere else?

2

Here is the specification: Erlang -- app

Can you please send a PR that adds the link above to the function documentation?

3

After further testing I think there is perhaps something wrong with Application.spec
I restarted the server with every change to mix.exs

4

Was about to create a PR for the documentation but you were faster than me :smiley:

1 Like
5

Was more or less me not reading the documentation and lacking knowledge. Thanks to @josevalim
The :id key belongs to application and has to be a character list (not a string):

  def application do
    [
      id: 'FC94 1973 58',
     [...]
    ]

Only :description and :version are copied over from project to application:

def project do
    [
      app: :app,
      version: "version",
      description: "description",
      [...]
    ]
  end
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