Invalid value

[emtudo]

I try read private key

example:

-----BEGIN EC PRIVATE KEY-----\ncontent\n-----END EC PRIVATE KEY-----

And i received no valid valor, because valor "\n" is replace to "\\n"

[iloveitaly]

@emtudo could you post the code that is causing the issue?

[emtudo]

config :starkbank,
  language: "pt-BR",
  project: [
    environment: :sandbox,
    id: System.get_env("STARKBANK_PROJECT_ID"),
    private_key: System.get_env("STARKBANK_PROJECT_PRIVATE_KEY")
  ],
  organization: [
    environment: :sandbox,
    id: System.get_env("STARKBANK_ORGANIZATION_ID"),
    private_key: System.get_env("STARKBANK_ORGANIZATION_PRIVATE_KEY")
  ]

System.get_env("STARKBANK_ORGANIZATION_PRIVATE_KEY") and System.get_env("STARKBANK_PROJECT_PRIVATE_KEY")

has invalid value. When I see values, has two , and has invalid value.

[emtudo]

By the way, thanks for an excellent tool.

Forgive me for not thanking you sooner.

[emtudo]

my env, example:

STARKBANK_PROJECT_PRIVATE_KEY="-----BEGIN EC PRIVATE KEY-----\ncontent\n-----END EC PRIVATE KEY-----"
STARKBANK_ORGANIZATION_PRIVATE_KEY="-----BEGIN EC PRIVATE KEY-----\ncontent\n-----END EC PRIVATE KEY-----"

[iloveitaly]

@emtudo Interesting! I'm guessing this code needs to be modified:

dotenv_elixir/lib/dotenv.ex

Line 140 in d6fd3f3

def parse_contents(contents) do

Best way to fix this would be writing a failing test for this and then modifying that method to ensure the value is parsed correctly. I don't have the time, but you are welcome to give it a shot!

[grzuy]

Facing a similar issue brought me here, but not sure that those escaped newlines are responsibility of dotenv.

In fact, without event using dotenv, just plain iex with env var in the shell command you do get those escaped newline characters:

➜  STARKBANK_PROJECT_PRIVATE_KEY="-----BEGIN EC PRIVATE KEY-----\ncontent\n-----END EC PRIVATE KEY-----" iex
Erlang/OTP 24 [erts-12.2.1] [source] [64-bit] [smp:10:10] [ds:10:10:10] [async-threads:1]

Interactive Elixir (1.13.3) - press Ctrl+C to exit (type h() ENTER for help)
iex(1)> System.get_env("STARKBANK_PROJECT_PRIVATE_KEY")
"-----BEGIN EC PRIVATE KEY-----\\ncontent\\n-----END EC PRIVATE KEY-----"

So dotenv stripping those away would be moving away from how shell env var works.

It seems that in order to better support PEM values in env vars, a better option would be supporting something multi-line strings in .env and/or heredocs.

Related: https://stackoverflow.com/questions/70022774/system-get-env-in-elixir-and-new-line-n.