Packages

toolshed

0.4.2
0.5.0 0.4.2 0.4.1 0.4.0 0.3.2 0.3.1 0.3.0 0.2.26 0.2.25 0.2.24 0.2.23 0.2.22 0.2.21 0.2.20 0.2.19 0.2.18 0.2.17 0.2.16 0.2.15 0.2.14 0.2.13 0.2.12 0.2.11 0.2.10 0.2.9 0.2.8 0.2.7 0.2.6 0.2.5 0.2.4 0.2.3 0.2.2 0.2.1 0.2.0 0.1.0

Use Toolshed for more IEx helpers

HexDocs

Current section

Files

Jump to
Readme
35 Versions
1 Dependency
Dependants
Files
Activity
toolshed lib_src core qr_encode.ex
Raw

lib_src/core/qr_encode.ex 

# SPDX-FileCopyrightText: 2022 Masatoshi Nishiguchi

# SPDX-FileCopyrightText: 2023 Frank Hunleth

#

# SPDX-License-Identifier: Apache-2.0

#

defmodule Toolshed.Core.QrEncode do

  @doc """

  Generate an ASCII art QR code



  See https://github.com/chubin/qrenco.de for more information.

  """

  @spec qr_encode(String.t()) :: :"do not show this result in output"

  def qr_encode(message) do

    check_app(:inets)



    encoded = message |> URI.encode() |> to_charlist()

    form_data = [?x, ?= | encoded]



    {:ok, {_status, _headers, body}} =

      :httpc.request(

        :post,

        {~c"http://qrenco.de/", [{~c"User-Agent", ~c"curl"}],

         ~c"application/x-www-form-urlencoded", form_data},

        [],

        []

      )



    body |> :binary.list_to_bin() |> IO.puts()

    IEx.dont_display_result()

  end

end