add backend from https://gitlab.com/RafifEL/temp_phoenix_funpro

diskuy_back/.formatter.exs

+[
+  import_deps: [:ecto, :phoenix],
+  inputs: ["*.{ex,exs}", "priv/*/seeds.exs", "{config,lib,test}/**/*.{ex,exs}"],
+  subdirectories: ["priv/*/migrations"]
+]

diskuy_back/.gitignore

+# The directory Mix will write compiled artifacts to.
+/_build/
+
+# If you run "mix test --cover", coverage assets end up here.
+/cover/
+
+# The directory Mix downloads your dependencies sources to.
+/deps/
+
+# Where 3rd-party dependencies like ExDoc output generated docs.
+/doc/
+
+# Ignore .fetch files in case you like to edit your project deps locally.
+/.fetch
+
+# If the VM crashes, it generates a dump, let's ignore it too.
+erl_crash.dump
+
+# Also ignore archive artifacts (built via "mix archive.build").
+*.ez
+
+# Ignore package tarball (built via "mix hex.build").
+diskuy-*.tar
+
+# Since we are building assets from assets/,
+# we ignore priv/static. You may want to comment
+# this depending on your deployment strategy.
+/priv/static/

diskuy_back/README.md

+# Diskuy
+
+To start your Phoenix server:
+
+  * Install dependencies with `mix deps.get`
+  * Create and migrate your database with `mix ecto.setup`
+  * Start Phoenix endpoint with `mix phx.server`
+
+Now you can visit [`localhost:4000`](http://localhost:4000) from your browser.
+
+Ready to run in production? Please [check our deployment guides](https://hexdocs.pm/phoenix/deployment.html).
+
+## Learn more
+
+  * Official website: https://www.phoenixframework.org/
+  * Guides: https://hexdocs.pm/phoenix/overview.html
+  * Docs: https://hexdocs.pm/phoenix
+  * Forum: https://elixirforum.com/c/phoenix-forum
+  * Source: https://github.com/phoenixframework/phoenix

diskuy_back/config/config.exs

+# This file is responsible for configuring your application
+# and its dependencies with the aid of the Mix.Config module.
+#
+# This configuration file is loaded before any dependency and
+# is restricted to this project.
+
+# General application configuration
+use Mix.Config
+
+config :diskuy,
+  ecto_repos: [Diskuy.Repo]
+
+# Configures the endpoint
+config :diskuy, DiskuyWeb.Endpoint,
+  url: [host: "localhost"],
+  secret_key_base: "2vHhQp+z9WMYDBV5qTBRAul6jdLAlDYdFZVOaCZ0vYQSFJdkj5A/9dBRIDpe5tIv",
+  render_errors: [view: DiskuyWeb.ErrorView, accepts: ~w(json), layout: false],
+  pubsub_server: Diskuy.PubSub,
+  live_view: [signing_salt: "aKmTxBag"]
+
+# Configures Elixir's Logger
+config :logger, :console,
+  format: "$time $metadata[$level] $message\n",
+  metadata: [:request_id]
+
+# Use Jason for JSON parsing in Phoenix
+config :phoenix, :json_library, Jason
+
+# Import environment specific config. This must remain at the bottom
+# of this file so it overrides the configuration defined above.
+import_config "#{Mix.env()}.exs"

diskuy_back/config/dev.exs

+use Mix.Config
+
+# Configure your database
+config :diskuy, Diskuy.Repo,
+  username: "rafif",
+  password: "rafif123",
+  database: "diskuy_dev",
+  hostname: "localhost",
+  show_sensitive_data_on_connection_error: true,
+  pool_size: 10
+
+# For development, we disable any cache and enable
+# debugging and code reloading.
+#
+# The watchers configuration can be used to run external
+# watchers to your application. For example, we use it
+# with webpack to recompile .js and .css sources.
+config :diskuy, DiskuyWeb.Endpoint,
+  http: [port: 4000],
+  debug_errors: true,
+  code_reloader: true,
+  check_origin: false,
+  watchers: []
+
+# ## SSL Support
+#
+# In order to use HTTPS in development, a self-signed
+# certificate can be generated by running the following
+# Mix task:
+#
+#     mix phx.gen.cert
+#
+# Note that this task requires Erlang/OTP 20 or later.
+# Run `mix help phx.gen.cert` for more information.
+#
+# The `http:` config above can be replaced with:
+#
+#     https: [
+#       port: 4001,
+#       cipher_suite: :strong,
+#       keyfile: "priv/cert/selfsigned_key.pem",
+#       certfile: "priv/cert/selfsigned.pem"
+#     ],
+#
+# If desired, both `http:` and `https:` keys can be
+# configured to run both http and https servers on
+# different ports.
+
+# Do not include metadata nor timestamps in development logs
+config :logger, :console, format: "[$level] $message\n"
+
+# Set a higher stacktrace during development. Avoid configuring such
+# in production as building large stacktraces may be expensive.
+config :phoenix, :stacktrace_depth, 20
+
+# Initialize plugs at runtime for faster development compilation
+config :phoenix, :plug_init_mode, :runtime

diskuy_back/config/prod.exs

+use Mix.Config
+
+# For production, don't forget to configure the url host
+# to something meaningful, Phoenix uses this information
+# when generating URLs.
+#
+# Note we also include the path to a cache manifest
+# containing the digested version of static files. This
+# manifest is generated by the `mix phx.digest` task,
+# which you should run after static files are built and
+# before starting your production server.
+config :diskuy, DiskuyWeb.Endpoint,
+  url: [host: "example.com", port: 80],
+  cache_static_manifest: "priv/static/cache_manifest.json"
+
+# Do not print debug messages in production
+config :logger, level: :info
+
+# ## SSL Support
+#
+# To get SSL working, you will need to add the `https` key
+# to the previous section and set your `:url` port to 443:
+#
+#     config :diskuy, DiskuyWeb.Endpoint,
+#       ...
+#       url: [host: "example.com", port: 443],
+#       https: [
+#         port: 443,
+#         cipher_suite: :strong,
+#         keyfile: System.get_env("SOME_APP_SSL_KEY_PATH"),
+#         certfile: System.get_env("SOME_APP_SSL_CERT_PATH"),
+#         transport_options: [socket_opts: [:inet6]]
+#       ]
+#
+# The `cipher_suite` is set to `:strong` to support only the
+# latest and more secure SSL ciphers. This means old browsers
+# and clients may not be supported. You can set it to
+# `:compatible` for wider support.
+#
+# `:keyfile` and `:certfile` expect an absolute path to the key
+# and cert in disk or a relative path inside priv, for example
+# "priv/ssl/server.key". For all supported SSL configuration
+# options, see https://hexdocs.pm/plug/Plug.SSL.html#configure/1
+#
+# We also recommend setting `force_ssl` in your endpoint, ensuring
+# no data is ever sent via http, always redirecting to https:
+#
+#     config :diskuy, DiskuyWeb.Endpoint,
+#       force_ssl: [hsts: true]
+#
+# Check `Plug.SSL` for all available options in `force_ssl`.
+
+# Finally import the config/prod.secret.exs which loads secrets
+# and configuration from environment variables.
+import_config "prod.secret.exs"

diskuy_back/config/prod.secret.exs

+# In this file, we load production configuration and secrets
+# from environment variables. You can also hardcode secrets,
+# although such is generally not recommended and you have to
+# remember to add this file to your .gitignore.
+use Mix.Config
+
+database_url =
+  System.get_env("DATABASE_URL") ||
+    raise """
+    environment variable DATABASE_URL is missing.
+    For example: ecto://USER:PASS@HOST/DATABASE
+    """
+
+config :diskuy, Diskuy.Repo,
+  # ssl: true,
+  url: database_url,
+  pool_size: String.to_integer(System.get_env("POOL_SIZE") || "10")
+
+secret_key_base =
+  System.get_env("SECRET_KEY_BASE") ||
+    raise """
+    environment variable SECRET_KEY_BASE is missing.
+    You can generate one by calling: mix phx.gen.secret
+    """
+
+config :diskuy, DiskuyWeb.Endpoint,
+  http: [
+    port: String.to_integer(System.get_env("PORT") || "4000"),
+    transport_options: [socket_opts: [:inet6]]
+  ],
+  secret_key_base: secret_key_base
+
+# ## Using releases (Elixir v1.9+)
+#
+# If you are doing OTP releases, you need to instruct Phoenix
+# to start each relevant endpoint:
+#
+#     config :diskuy, DiskuyWeb.Endpoint, server: true
+#
+# Then you can assemble a release by calling `mix release`.
+# See `mix help release` for more information.

diskuy_back/config/test.exs

+use Mix.Config
+
+# Configure your database
+#
+# The MIX_TEST_PARTITION environment variable can be used
+# to provide built-in test partitioning in CI environment.
+# Run `mix help test` for more information.
+config :diskuy, Diskuy.Repo,
+  username: "postgres",
+  password: "postgres",
+  database: "diskuy_test#{System.get_env("MIX_TEST_PARTITION")}",
+  hostname: "localhost",
+  pool: Ecto.Adapters.SQL.Sandbox
+
+# We don't run a server during test. If one is required,
+# you can enable the server option below.
+config :diskuy, DiskuyWeb.Endpoint,
+  http: [port: 4002],
+  server: false
+
+# Print only warnings and errors during test
+config :logger, level: :warn

diskuy_back/lib/diskuy.ex

+defmodule Diskuy do
+  @moduledoc """
+  Diskuy keeps the contexts that define your domain
+  and business logic.
+
+  Contexts are also responsible for managing your data, regardless
+  if it comes from the database, an external API or others.
+  """
+end

diskuy_back/lib/diskuy/account.ex

+defmodule Diskuy.Account do
+  @moduledoc """
+  The Account context.
+  """
+
+  import Ecto.Query, warn: false
+  alias Diskuy.Repo
+
+  alias Diskuy.Account.User
+
+  @doc """
+  Returns the list of users.
+
+  ## Examples
+
+      iex> list_users()
+      [%User{}, ...]
+
+  """
+  def list_users do
+    Repo.all(User)
+  end
+
+  @doc """
+  Gets a single user.
+
+  Raises `Ecto.NoResultsError` if the User does not exist.
+
+  ## Examples
+
+      iex> get_user!(123)
+      %User{}
+
+      iex> get_user!(456)
+      ** (Ecto.NoResultsError)
+
+  """
+  def get_user!(id), do: Repo.get!(User, id)
+
+  @doc """
+  Creates a user.
+
+  ## Examples
+
+      iex> create_user(%{field: value})
+      {:ok, %User{}}
+
+      iex> create_user(%{field: bad_value})
+      {:error, %Ecto.Changeset{}}
+
+  """
+  def create_user(attrs \\ %{}) do
+    %User{}
+    |> User.changeset(attrs)
+    |> Repo.insert()
+  end
+
+  @doc """
+  Updates a user.
+
+  ## Examples
+
+      iex> update_user(user, %{field: new_value})
+      {:ok, %User{}}
+
+      iex> update_user(user, %{field: bad_value})
+      {:error, %Ecto.Changeset{}}
+
+  """
+  def update_user(%User{} = user, attrs) do
+    user
+    |> User.changeset(attrs)
+    |> Repo.update()
+  end
+
+  @doc """
+  Deletes a user.
+
+  ## Examples
+
+      iex> delete_user(user)
+      {:ok, %User{}}
+
+      iex> delete_user(user)
+      {:error, %Ecto.Changeset{}}
+
+  """
+  def delete_user(%User{} = user) do
+    Repo.delete(user)
+  end
+
+  @doc """
+  Returns an `%Ecto.Changeset{}` for tracking user changes.
+
+  ## Examples
+
+      iex> change_user(user)
+      %Ecto.Changeset{data: %User{}}
+
+  """
+  def change_user(%User{} = user, attrs \\ %{}) do
+    User.changeset(user, attrs)
+  end
+end

diskuy_back/lib/diskuy/account/user.ex

+defmodule Diskuy.Account.User do
+  use Ecto.Schema
+  import Ecto.Changeset
+
+  @primary_key {:id, :string, []}
+  @derive {Phoenix.Param, key: :id}
+  schema "users" do
+    field :username, :string
+
+    timestamps()
+  end
+
+  @doc false
+  def changeset(user, attrs) do
+    user
+    |> cast(attrs, [:username, :email])
+    |> validate_required([:username, :email])
+  end
+end

diskuy_back/lib/diskuy/application.ex

+defmodule Diskuy.Application do
+  # See https://hexdocs.pm/elixir/Application.html
+  # for more information on OTP Applications
+  @moduledoc false
+
+  use Application
+
+  def start(_type, _args) do
+    children = [
+      # Start the Ecto repository
+      Diskuy.Repo,
+      # Start the Telemetry supervisor
+      DiskuyWeb.Telemetry,
+      # Start the PubSub system
+      {Phoenix.PubSub, name: Diskuy.PubSub},
+      # Start the Endpoint (http/https)
+      DiskuyWeb.Endpoint
+      # Start a worker by calling: Diskuy.Worker.start_link(arg)
+      # {Diskuy.Worker, arg}
+    ]
+
+    # See https://hexdocs.pm/elixir/Supervisor.html
+    # for other strategies and supported options
+    opts = [strategy: :one_for_one, name: Diskuy.Supervisor]
+    Supervisor.start_link(children, opts)
+  end
+
+  # Tell Phoenix to update the endpoint configuration
+  # whenever the application is updated.
+  def config_change(changed, _new, removed) do
+    DiskuyWeb.Endpoint.config_change(changed, removed)
+    :ok
+  end
+end

diskuy_back/lib/diskuy/forum.ex

+defmodule Diskuy.Forum do
+  @moduledoc """
+  The Forum context.
+  """
+
+  import Ecto.Query, warn: false
+  alias Diskuy.Repo
+
+  alias Diskuy.Forum.Topic
+
+  @doc """
+  Returns the list of topics.
+
+  ## Examples
+
+      iex> list_topics()
+      [%Topic{}, ...]
+
+  """
+  def list_topics do
+    Repo.all(Topic)
+  end
+
+  @doc """
+  Gets a single topic.
+
+  Raises `Ecto.NoResultsError` if the Topic does not exist.
+
+  ## Examples
+
+      iex> get_topic!(123)
+      %Topic{}
+
+      iex> get_topic!(456)
+      ** (Ecto.NoResultsError)
+
+  """
+  def get_topic!(id), do: Repo.get!(Topic, id)
+
+  @doc """
+  Creates a topic.
+
+  ## Examples
+
+      iex> create_topic(%{field: value})
+      {:ok, %Topic{}}
+
+      iex> create_topic(%{field: bad_value})
+      {:error, %Ecto.Changeset{}}
+
+  """
+  def create_topic(attrs \\ %{}) do
+    %Topic{}
+    |> Topic.changeset(attrs)
+    |> Repo.insert()
+  end
+
+  @doc """
+  Updates a topic.
+
+  ## Examples
+
+      iex> update_topic(topic, %{field: new_value})
+      {:ok, %Topic{}}
+
+      iex> update_topic(topic, %{field: bad_value})
+      {:error, %Ecto.Changeset{}}
+
+  """
+  def update_topic(%Topic{} = topic, attrs) do
+    topic
+    |> Topic.changeset(attrs)
+    |> Repo.update()
+  end
+
+  @doc """
+  Deletes a topic.
+
+  ## Examples
+
+      iex> delete_topic(topic)
+      {:ok, %Topic{}}
+
+      iex> delete_topic(topic)
+      {:error, %Ecto.Changeset{}}
+
+  """
+  def delete_topic(%Topic{} = topic) do
+    Repo.delete(topic)
+  end
+
+  @doc """
+  Returns an `%Ecto.Changeset{}` for tracking topic changes.
+
+  ## Examples
+
+      iex> change_topic(topic)
+      %Ecto.Changeset{data: %Topic{}}
+
+  """
+  def change_topic(%Topic{} = topic, attrs \\ %{}) do
+    Topic.changeset(topic, attrs)
+  end
+
+  alias Diskuy.Forum.Thread
+
+  @doc """
+  Returns the list of threads.
+
+  ## Examples
+
+      iex> list_threads()
+      [%Thread{}, ...]
+
+  """
+  def list_threads do
+    Repo.all(Thread)
+  end
+
+  @doc """
+  Gets a single thread.
+
+  Raises `Ecto.NoResultsError` if the Thread does not exist.
+
+  ## Examples
+
+      iex> get_thread!(123)
+      %Thread{}
+
+      iex> get_thread!(456)
+      ** (Ecto.NoResultsError)
+
+  """
+  def get_thread!(id), do: Repo.get!(Thread, id)
+
+  @doc """
+  Creates a thread.
+
+  ## Examples
+
+      iex> create_thread(%{field: value})
+      {:ok, %Thread{}}
+
+      iex> create_thread(%{field: bad_value})
+      {:error, %Ecto.Changeset{}}
+
+  """
+  def create_thread(attrs \\ %{}) do
+    %Thread{}
+    |> Thread.changeset(attrs)
+    |> Repo.insert()
+  end
+
+  @doc """
+  Updates a thread.
+
+  ## Examples
+
+      iex> update_thread(thread, %{field: new_value})
+      {:ok, %Thread{}}
+
+      iex> update_thread(thread, %{field: bad_value})
+      {:error, %Ecto.Changeset{}}
+
+  """
+  def update_thread(%Thread{} = thread, attrs) do
+    thread
+    |> Thread.changeset(attrs)
+    |> Repo.update()
+  end
+
+  @doc """
+  Deletes a thread.
+
+  ## Examples
+
+      iex> delete_thread(thread)
+      {:ok, %Thread{}}
+
+      iex> delete_thread(thread)
+      {:error, %Ecto.Changeset{}}
+
+  """
+  def delete_thread(%Thread{} = thread) do
+    Repo