timex_poison's Introduction

TimexPoison

Easily parse timestamps using Timex as they are decoded from json by Poison.

Installation

If available in Hex, the package can be installed as:

Add timex_poison to your list of dependencies in mix.exs:

def deps do
  [{:timex_poison, "~> 0.2.0"}]
end

Ensure timex_poison is started before your application:

def application do
  [applications: [:timex_poison]]
end

Usage

Basic Usage

By default, timestamps will be parsed using Timex's {ISOz} formatter.

defmodule MyGreatStruct do
  use TimexPoison keys: [:created_at]
  defstruct [:name, :created_at]
end

iex> Poison.decode! ~s({"name": "Great", "created_at": "2016-07-27T08:50:08.681Z"}), as: %MyGreatStruct{}
%MyGreatStruct{name: "Great", created_at: #<DateTime(2016-07-27T08:50:08Z)>}

Formatter Selection

Alternatively you can specify your own formatter:

defmodule WithDateFormat do
  use TimexPoison, keys: [:timestamp], format: "{RFC1123}"
  defstruct [:timestamp]
end

iex> Poison.decode(~s({"timestamp" : "Tue, 05 Mar 2013 23:25:19 +0200"}), as: %WithDateFormat{})

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timex_poison's Issues

Elixir 1.5 - error compiling

Hey this doesn't seem to work in my project (poison 2, elixir 1.5).
I'm not very experienced with macros so...
Error during compilation

== Compilation error in file lib/command/my_command.ex ==
** (SyntaxError) lib/command/my_command.ex:2: syntax error before: 'keys':
    (elixir) lib/kernel/parallel_compiler.ex:121: anonymous fn/4 in Kernel.ParallelCompiler.spawn_compilers/1

Struct:

defmodule Command.MyCommand do
  use TimexPoison keys: [:production_date, :start_time, :end_time, :timestamp]

  defstruct 
            production_date: nil,
            start_time: nil,
            end_time: nil,
            timestamp: nil
end