Programming Ecto

Adding Ecto’s Dependencies

The next step is to add the packages that Ecto needs to run. Open the mix.exs file and look for the deps/0 function. It should look something like this:

defp deps do
  [
    # {:dep_from_hexpm, "~> 0.3.0"},
    # {:dep_from_git, git: "https://github.com/elixir-lang/my_dep.git",
    #   tag: "0.1.0"}
  ]
end

Replace the commented-out code with the following:

priv/examples/adding_ecto.exs

defp deps do
  [
    {:postgrex, ">= 0.0.0"},
    {:ecto_sql, "~> 3.0"}
  ]
end

Postgrex is the driver Ecto uses to communicate with the PostgreSQL database. Ecto also supports MySQL and MariaDB out of the box with the mariaex adapter—you just need to replace ...