WIP

lib/customer_service_web/controllers/customer.ex

@@ -0,0 +1,84 @@
+defmodule CustomerServiceWeb.Customer do
+  use CustomerServiceWeb, :controller
+
+  alias CustomerServiceWeb.Schemas.CreateCustomerRequest
+  alias CustomerServiceWeb.Schemas.CustomerResponse
+  alias CustomerService.Commands.CreateCustomer
+  alias CustomerService.CommandedApp
+  use OpenApiSpex.ControllerSpecs
+
+  tags ["Customers"]
+
+  operation :create,
+    summary: "Create customer",
+    request_body: {"Customer data", "application/json", CreateCustomerRequest},
+    responses: [
+      ok: {"Customer created", "application/json", CustomerResponse}
+    ]
+
+  def create(conn, params) do
+    customer_id = Ecto.UUID.generate()
+
+    command =
+      %CreateCustomer{
+        id: customer_id,
+        first_name: params["first_name"],
+        last_name: params["last_name"],
+        birth_date: Date.from_iso8601!(params["birth_date"]),
+        gender: params["gender"],
+        email: params["email"],
+        phone: params["phone"]
+      }
+
+    case CommandedApp.dispatch(command, consistency: :strong) do
+      :ok ->
+        json(conn, %{id: customer_id})
+
+      {:error, reason} ->
+        conn
+        |> put_status(:unprocessable_entity)
+        |> json(%{error: inspect(reason)})
+    end
+  end
+
+  operation :show,
+    summary: "Get customer",
+    parameters: [
+      id: [in: :path, type: :string, description: "Customer ID"]
+    ],
+    responses: [
+      ok: {"Customer", "application/json", CustomerResponse},
+      not_found: {"Not found", "application/json", nil}
+    ]
+
+  def show(conn, %{"id" => id}) do
+    case CustomerService.Repo.get(CustomerService.Projections.Customer, id) do
+      nil ->
+        send_resp(conn, 404, "")
+
+      customer ->
+        json(conn, customer)
+    end
+  end
+
+  operation :index,
+    summary: "List customers",
+    responses: [
+      ok:
+        {"Customer list", "application/json",
+         %OpenApiSpex.Schema{
+           type: :array,
+           items: CustomerResponse
+         }}
+    ]
+
+  def index(conn, _) do
+    case CustomerService.Repo.all(CustomerService.Projections.Customer) do
+      nil ->
+        send_resp(conn, 404, "")
+
+      customer ->
+        json(conn, customer)
+    end
+  end
+end

lib/customer_service_web/controllers/error_json.ex

@@ -0,0 +1,21 @@
+defmodule CustomerServiceWeb.ErrorJSON do
+  @moduledoc """
+  This module is invoked by your endpoint in case of errors on JSON requests.
+
+  See config/config.exs.
+  """
+
+  # If you want to customize a particular status code,
+  # you may add your own clauses, such as:
+  #
+  # def render("500.json", _assigns) do
+  #   %{errors: %{detail: "Internal Server Error"}}
+  # end
+
+  # By default, Phoenix returns the status message from
+  # the template name. For example, "404.json" becomes
+  # "Not Found".
+  def render(template, _assigns) do
+    %{errors: %{detail: Phoenix.Controller.status_message_from_template(template)}}
+  end
+end