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Load environment variables from .env (or other) files in Gleam

aosasona/dotenv

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dot_env

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dot_env is a port of the popular JavaScript dotenv package that helps you load environment variables from .env (or other) files.

This package may support other formats in the future but for now, supports the popular .env format

You can find the Javascript "tests" here

Quick start

import dot_env as dot
import dot_env/env
import gleam/io

pub fn main() {
  dot.new()
  |> dot.set_path("path/to/.env")
  |> dot.set_debug(False)
  |> dot.load

  // or dot_env.load_with_opts(dot_env.Opts(path: "path/to/.env", debug: False, capitalize: False))
  // or `dot_env.load_default()` to load the `.env` file in the root path

  case env.get_string("MY_ENV_VAR") {
    Ok(value) -> io.println(value)
    Error(_) -> io.println("something went wrong")
  }

  let app_name = env.get_string_or("APP_NAME", "my app name")
  let port = env.get_int_or("PORT", 3000)
  let enable_signup = env.get_bool_or("ENABLE_SIGNUP", True)

  echo app_name
  echo port
  echo enable_signup

  Nil
}

Installation

gleam add dot_env

and its documentation can be found at https://hexdocs.pm/dot_env.

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Load environment variables from .env (or other) files in Gleam

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