Absinthe.Plug不可用

Question

安装absinthe_plug后，我将得到以下错误：

= Compilation error in file lib/kerrigan_api_web/router.ex ==
** (UndefinedFunctionError) function KerriganApiWeb.Absinthe.Plug.init/1 is undefined (module KerriganApiWeb.Absinthe.Plug is not available)

这是我的助手

{:phoenix, "~> 1.3.0"},
  {:phoenix_pubsub, "~> 1.0"},
  {:phoenix_ecto, "~> 3.2"},
  {:postgrex, ">= 0.0.0"},
  {:phoenix_html, "~> 2.10"},
  {:phoenix_live_reload, "~> 1.0", only: :dev},
  {:gettext, "~> 0.11"},
  {:cowboy, "~> 1.0"},
  {:poison, "~> 3.1"},
  {:absinthe, "~> 1.3.0"},
  {:absinthe_plug, "~> 1.3.0"},
  {:absinthe_ecto, git: "https://github.com/absinthe-graphql/absinthe_ecto.git"},
  {:faker, "~> 0.7"},

据我所知，我不需要再添加任何东西。我在这里遵循了简单的步骤：

弹状物

编辑:我的路由器

defmodule KerriganApiWeb.Router do
  use KerriganApiWeb, :router

  pipeline :browser do
    plug :accepts, ["html"]
    plug :fetch_session
    plug :fetch_flash
    plug :protect_from_forgery
    plug :put_secure_browser_headers
  end

  pipeline :api do
    plug :accepts, ["json"]
  end

  scope "/", KerriganApiWeb do
    pipe_through :browser # Use the default browser stack

    get "/", PageController, :index
    resources "/hotsdata_user", UserController, except: [:new, :edit]
    resources "/battletag_toonhandle_lookup", PlayerController, except: [:new, :edit]

    forward "/graph", Absinthe.Plug, schema: KerriganApi.Schema
    forward "/graphiql", Absinthe.Plug.GraphiQL, schema: KerriganApi.Schema
  end

end

我添加了require Absinthe.Plug，但这不起作用

Answer 1

您正在将一个alias (KerriganApiWeb)传递给scope，它为传递给内部路由声明函数的所有模块提供别名。这将在对Absinthe.Plug的调用中将forward转换为KerriganApiWeb.Absinthe.Plug，这不是您想要的。您需要模块Absinthe.Plug。解决这一问题的方法有两种：

1. 删除alias参数，并在所有需要它的路由声明函数中显式使用KerriganApiWeb。 范围"/“do pipe_through :browser #使用默认的浏览器堆栈get "/"，KerriganApiWeb.PageController，：索引资源"/hotsdata_user"，KerriganApiWeb.UserController，除：:new，：编辑资源"/battletag_toonhandle_lookup"，KerriganApiWeb.PlayerController，除:new，:edit "/graph"，Absinthe.Plug，schema: KerriganApi.Schema forward "/graphiql"，Absinthe.Plug.GraphiQL，schema: KerriganApi.Schema end
2. 使用相同的路径和管道创建一个新的scope，并在那里声明forward路由： 范围"/"，KerriganApiWeb do pipe_through :browser #使用默认的浏览器堆栈get "/"，PageController，：索引资源"/hotsdata_user"，UserController，除：:new，：编辑资源"/battletag_toonhandle_lookup"，PlayerController，除：:new，：Use scope“/ do forward”/graph，Absinthe.Plug，schema: KerriganApi.Schema forward "/graphiql"，Absinthe.Plug.GraphiQL，schema: KerriganApi.Schema end

菲尼克斯文档说第一个将增加您的应用程序的编译时间。即使不是这样，我也会选择第二个，因为我发现它更容易读懂。

Answer 2

您只需将两个端点"/graph“和"graphiql”移出范围"/“即可。

defmodule KerriganApiWeb.Router do
  use KerriganApiWeb, :router

  pipeline :browser do
    plug :accepts, ["html"]
    plug :fetch_session
    plug :fetch_flash
    plug :protect_from_forgery
    plug :put_secure_browser_headers
  end

  pipeline :api do
    plug :accepts, ["json"]
  end

  scope "/", KerriganApiWeb do
    pipe_through :browser # Use the default browser stack

    get "/", PageController, :index
    resources "/hotsdata_user", UserController, except: [:new, :edit]
    resources "/battletag_toonhandle_lookup", PlayerController, except: [:new, :edit]
  end

  forward "/graph", Absinthe.Plug, schema: KerriganApi.Schema
  forward "/graphiql", Absinthe.Plug.GraphiQL, schema: KerriganApi.Schema, interface: :advanced

end