CODEWITHSUNDEEP
httpelixir
ademar111190
ademar111190

Reputation: 14505

How to import a HTTPotion into an elixir project

I created an project:

$ mix new sample

I edited the mix.exs file:

defmodule Sample.Mixfile do
  use Mix.Project

  def project do
    [app: :sample,
     version: "0.1.0",
     elixir: "~> 1.3",
     build_embedded: Mix.env == :prod,
     start_permanent: Mix.env == :prod,
     deps: deps()]
  end

  def application do
    [applications: [:logger, :httpotion]]
  end

  defp deps do
    [{:httpotion, "~> 3.0.2"}]
  end
end

and my samplex.ex file:

defmodule Sample do
  IO.puts "Hello World"
end

I run:

$ mix deps.get
$ mix

and I get:

Compiling 1 file (.ex)
Hello World
Generated sample app

until here all perfect, but if I change the sample.ex to:

defmodule Sample do
  HTTPotion.get "httpbin.org/get"
end

I get the following error:

$ mix deps.get
Running dependency resolution
All dependencies up to date
$ mix         
Compiling 1 file (.ex)
warning: variable response is unused
  lib/sample.ex:2


== Compilation error on file lib/sample.ex ==
** (ArgumentError) argument error
    (stdlib) :ets.lookup(:ibrowse_lb, {'httpbin.org', 80})
    /Users/xxx/sample/deps/ibrowse/src/ibrowse.erl:328: :ibrowse.send_req/6
    lib/httpotion.ex:355: HTTPotion.request/3
    (stdlib) erl_eval.erl:670: :erl_eval.do_apply/6

what is missing? I have no experience with elixir.

Upvotes: 0

Views: 158

Answers (1)

Oleksandr Avoiants
Oleksandr Avoiants

Reputation: 1929

I've reproduced the issue with provided steps. HTTPotion.get/2 raises exception if called directly in the module but works fine if called from the function.

defmodule Sample do
  def request do
    HTTPotion.get "httpbin.org/get"
  end
end

Checked with test

defmodule SampleTest do
  use ExUnit.Case

  test "response from HTTPotion" do
    assert Sample.request
  end
end

I think it raises exception if called in compile time.

Upvotes: 1

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