How to work PhoenixFramework with Mongodb?

I’m trying to use the phoenix framework and mongodb as the database, so I ran the following command to get started

mix phoenix.new helloworld --database mongodb
 

My mix.exs file looks like this:

defp deps do
   [{:phoenix, "~> 1.2.1"},
    {:phoenix_pubsub, "~> 1.0"},
    {:phoenix_ecto, "~> 3.0"},
    {:mongodb_ecto, ">= 0.0.0"},
    {:phoenix_html, "~> 2.6"},
    {:phoenix_live_reload, "~> 1.0", only: :dev},
    {:gettext, "~> 0.11"},
    {:cowboy, "~> 1.0"}]
 end
 

But when I run mix deps.get, I get the following error:

Failed to use "ecto" (versions 2.0.0, 2.0.1, 2.0.2, 2.0.3, 2.0.4, 2.0.5, 2.0.6, 2.1.0  , 2.1.1, 2.1.2, 2.1.3, 2.1.4) because
   mongodb_ecto (versions 0.1.0 to 0.1.2) requires ~> 1.0
   phoenix_ecto (version 3.0.1) requires ~> 2.0


 Failed to use "ecto" (versions 2.0.0-beta.0 to 2.0.6) because
   mongodb_ecto (versions 0.1.0 to 0.1.2) requires ~> 1.0
   phoenix_ecto (version 3.0.0) requires ~> 2.0.0-rc


 Failed to use "ecto" (version 2.0.6) because
   mongodb_ecto (versions 0.1.3 to 0.1.5) requires ~> 1.0.0
   phoenix_ecto (version 3.0.0) requires ~> 2.0.0-rc


 Failed to use "ecto" (versions 2.1.0 to 2.1.4) because
   mongodb_ecto (versions 0.1.0 to 0.1.2) requires ~> 1.0
   phoenix_ecto (versions 3.1.0 to 3.2.3) requires ~> 2.1


 Failed to use "ecto" (version 2.1.4) because
   mongodb_ecto (versions 0.1.3 to 0.1.5) requires ~> 1.0.0
   phoenix_ecto (version 3.0.1) requires ~> 2.0


 Failed to use "ecto" (version 2.1.4) because
   mongodb_ecto (versions 0.1.3 to 0.1.5) requires ~> 1.0.0
   phoenix_ecto (versions 3.1.0 to 3.2.3) requires ~> 2.1

 ** (Mix) Hex dependency resolution failed, relax the version requirements of your dependencies or unlock them (by using mix deps.update or mix deps.unlock). If you are unable to resolve the conflicts you can try overriding with {:dependency  , "~> 1.0", override: true}
 

How do I get started?

1> Sheharyar..:

The problem here is that mongodb_ecto has not been updated for a long time, The new versions (v2.0 and above) currently being used by Ecto Phoenix are therefore not supported. This causes mix deps.get to fail because it cannot resolve dependencies .

A solution here is to use Elixir‘s MongoDB driver directly, instead of mongodb_ecto configuring it as EctoUsed in a Phoenix application. Here is a blog post explaining how to do this:

Phoenix with Ecto and MongoDB

There is another library Ecto 2 that provides MongoDB support, but it is still listed as beta in the project’s github repository. If If it meets your usage standards, you can check it yourself:

eyrmedical/mongo_ecto