Injecto

A behaviour module that defines both an Ecto schema and a JSON schema.

An Injecto schema uses the module attribute @properties to define an Ecto schema and a JSON schema based on the ex_json_schema library. In doing so, it also injects a Jason encoder implementation. The advantage of using an Injecto schema is to get a consistent parsing and validating with Ecto changesets and JSON schema respectively with minimal boilerplates. This consistency is helpful when working with struct-based request or response bodies, because we can get accurate Swagger schemas for free.

Example:

defmodule Post do
  @properties %{
    title: {:string, required: true},
    description: {:string, []},
    likes: {:integer, required: true, minimum: 0}
  }
  use Injecto
end

Refer to the Injecto HexDocs for a more information.

Installation

If available in Hex, the package can be installed by adding injecto to your list of dependencies in mix.exs:

def deps do
  [
    {:injecto, "~> 0.1.0"}
  ]
end