对Lxphnx.ArticleController.create的错误请求,没有匹配的操作子句来处理请求 [英] bad request to Lxphnx.ArticleController.create, no matching action clause to process request
问题描述
我可以执行GET请求,但似乎无法执行POST请求.
I can do a GET request but I can't seem to get a POST request working.
这是我的路线
article_path GET /api/articles Lxphnx.ArticleController :index
article_path GET /api/articles/:id Lxphnx.ArticleController :show
article_path POST /api/articles Lxphnx.ArticleController :create
article_path PATCH /api/articles/:id Lxphnx.ArticleController :update
PUT /api/articles/:id Lxphnx.ArticleController :update
article_path DELETE /api/articles/:id Lxphnx.ArticleController :delete
除了使用mix phoenix.gen.json外,我什么都没动.该项目只是一个API,因此在创建项目时也使用了--no-brunch --no-html.
I haven't really touched anything except for using mix phoenix.gen.json. This project is an API only so I also used --no-brunch --no-html when creating the project.
控制器:
defmodule Lxphnx.ArticleController do
use Lxphnx.Web, :controller
alias Lxphnx.Article
def index(conn, _params) do
articles = Repo.all(Article)
render(conn, "index.json", articles: articles)
end
def create(conn, %{"article" => article_params}) do
changeset = Article.changeset(%Article{}, article_params)
case Repo.insert(changeset) do
{:ok, article} ->
conn
|> put_status(:created)
|> put_resp_header("location", article_path(conn, :show, article))
|> render("show.json", article: article)
{:error, changeset} ->
conn
|> put_status(:unprocessable_entity)
|> render(Lxphnx.ChangesetView, "error.json", changeset: changeset)
end
end
def show(conn, %{"id" => id}) do
article = Repo.get!(Article, id)
render(conn, "show.json", article: article)
end
def update(conn, %{"id" => id, "article" => article_params}) do
article = Repo.get!(Article, id)
changeset = Article.changeset(article, article_params)
case Repo.update(changeset) do
{:ok, article} ->
render(conn, "show.json", article: article)
{:error, changeset} ->
conn
|> put_status(:unprocessable_entity)
|> render(Lxphnx.ChangesetView, "error.json", changeset: changeset)
end
end
def delete(conn, %{"id" => id}) do
article = Repo.get!(Article, id)
# Here we use delete! (with a bang) because we expect
# it to always work (and if it does not, it will raise).
Repo.delete!(article)
send_resp(conn, :no_content, "")
end
end
路由器:
defmodule Lxphnx.Router做 使用Lxphnx.Web,:router
defmodule Lxphnx.Router do use Lxphnx.Web, :router
pipeline :api do
plug :accepts, ["json"]
end
scope "/api", Lxphnx do
pipe_through :api
resources "/articles", ArticleController, except: [:new, :edit]
end
end
查看:
defmodule Lxphnx.ArticleView do
use Lxphnx.Web, :view
def render("index.json", %{articles: articles}) do
%{data: render_many(articles, Lxphnx.ArticleView, "article.json")}
end
def render("show.json", %{article: article}) do
%{data: render_one(article, Lxphnx.ArticleView, "article.json")}
end
def render("article.json", %{article: article}) do
%{id: article.id,
title: article.title,
body: article.body,
type: article.type}
end
end
哦,我也尝试过 Phoenix POST时出现.ActionClauseError,没有匹配的操作子句来处理请求
我正在使用cURL,并且我没有忘记说它是一个应用程序/json.这是我的curl请求:curl -X POST -d '{"id":1, "title":"a title", "body":"a body", "type:1"}' -o log.txt localhost:4000/api/articles
如果我使用邮递员,我将得到相同的结果.
I'm using cURL and I'm not forgetting to put that it's an application/json. Here is my curl request: curl -X POST -d '{"id":1, "title":"a title", "body":"a body", "type:1"}' -o log.txt localhost:4000/api/articles
I get the same results if I use postman.
推荐答案
为了使您的function子句匹配,您需要在curl请求中指定文章":
In order for your function clause to match, you need to specify "article" in your curl request:
curl -X POST -d '{"article": {"id":1, "title":"a title", "body":"a body", "type:1"}}' -o log.txt localhost:4000/api/articles
如果您不想在对象中使用此顶级键,请更改:
If you don't want this top level key in your object, change:
def create(conn, %{"article" => article_params}) do
changeset = Article.changeset(%Article{}, article_params)
收件人:
def create(conn, article_params) do
changeset = Article.changeset(%Article{}, article_params)
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