From 96a3e2e9f0ce7fd83d59d383c5f4cd17315ad673 Mon Sep 17 00:00:00 2001
From: Joao P Dubas <joao.dubas@gmail.com>
Date: Thu, 24 Jun 2021 00:25:47 +0000
Subject: [PATCH] [day-03] add mutation to create user

1. Add input type to receive user details
2. Add resolver to create user
3. Configure mutation in root type
4. Aggregate mutations in schema
---
 lib/wabanex_web/resolvers/user.ex    | 2 ++
 lib/wabanex_web/schema.ex            | 4 ++++
 lib/wabanex_web/schema/types/root.ex | 8 ++++++++
 lib/wabanex_web/schema/types/user.ex | 6 ++++++
 4 files changed, 20 insertions(+)

diff --git a/lib/wabanex_web/resolvers/user.ex b/lib/wabanex_web/resolvers/user.ex
index 572c44c..219edb1 100644
--- a/lib/wabanex_web/resolvers/user.ex
+++ b/lib/wabanex_web/resolvers/user.ex
@@ -2,4 +2,6 @@ defmodule WabanexWeb.Resolvers.User do
   alias Wabanex.Users
 
   def get(%{id: user_id}, _context), do: Users.Get.call(user_id)
+
+  def create(%{input: params}, _context), do: Users.Create.call(params)
 end
diff --git a/lib/wabanex_web/schema.ex b/lib/wabanex_web/schema.ex
index c86ec20..e4b30ed 100644
--- a/lib/wabanex_web/schema.ex
+++ b/lib/wabanex_web/schema.ex
@@ -6,4 +6,8 @@ defmodule WabanexWeb.Schema do
   query do
     import_fields :root_query
   end
+
+  mutation do
+    import_fields :root_mutation
+  end
 end
diff --git a/lib/wabanex_web/schema/types/root.ex b/lib/wabanex_web/schema/types/root.ex
index 3c8a748..f8f2ac2 100644
--- a/lib/wabanex_web/schema/types/root.ex
+++ b/lib/wabanex_web/schema/types/root.ex
@@ -12,4 +12,12 @@ defmodule WabanexWeb.Schema.Types.Root do
       resolve &UserResolver.get/2
     end
   end
+
+  object :root_mutation do
+    field :create_user, type: :user do
+      arg :input, non_null(:create_user_input)
+
+      resolve &UserResolver.create/2
+    end
+  end
 end
diff --git a/lib/wabanex_web/schema/types/user.ex b/lib/wabanex_web/schema/types/user.ex
index e1e0187..a5623d6 100644
--- a/lib/wabanex_web/schema/types/user.ex
+++ b/lib/wabanex_web/schema/types/user.ex
@@ -9,4 +9,10 @@ defmodule WabanexWeb.Schema.Types.User do
     field :name, non_null(:string)
     field :email, non_null(:string)
   end
+
+  input_object :create_user_input do
+    field :name, non_null(:string), description: "User name"
+    field :email, non_null(:string), description: "User email"
+    field :password, non_null(:string), description: "User password"
+  end
 end