When I prefetch a resource, it throws a :timeout exception, but the resource is actually prefetched by Qiniu.

** (HTTPoison.Error) :timeout
    (httpoison) lib/httpoison.ex:66: HTTPoison.request!/5
    (qiniu) lib/qiniu/http.ex:24: Qiniu.HTTP.request/4
    (elixir) lib/enum.ex:651: Enum."-each/2-lists^foreach/1-0-"/2
    (elixir) lib/enum.ex:651: Enum.each/2
    (stdlib) erl_eval.erl:670: :erl_eval.do_apply/6
    (elixir) lib/code.ex:168: Code.eval_string/3

The implementation:

defmodule HMQ do
  @bucket "hex-mirror"
  @keys ~w(
    registry.ets.gz
    registry.ets.gz.signed
  )

  def prefetch_all do
    @keys
    |> Enum.each(&prefetch/1)
  end

  def prefetch(key) do
    Qiniu.Resource.prefetch("hex-mirror:" <> key)
  end
end

Hi Tony, as titled. Please correct the README file. Thanks a lot.

doc ":" in resource.ex appears to be ":" in online doc

The body is not parsed by Poison: {\"hash\":\"FnQywUlnZVbpMYJGPKVUpZeUVTiw\",\"key\":\"test.mp4\"}

I looked at the source code, found that the opts are not passed to Qiniu.HTTP.post/3

I get when I run mix deps.get after mix deps.clean --all

hackney 1.6.6 RETIRED!
(invalid)

and when I run mix deps.tree

├── qiniu ~> 0.3.5 (Hex package)
│ ├── httpoison ~> 0.10.0 (Hex package)
│ │ └── hackney ~> 1.6.3 (Hex package)

I think upgrade of httpoison is required to fix this warning.

[error] #PID<0.722.0> running DoScience.Web.Endpoint terminated
Server: localhost:4000 (http)
Request: POST /api/editor/delete_image
** (exit) an exception was raised:
** (Poison.SyntaxError) Unexpected end of input at position 0
(poison) lib/poison/parser.ex:55: Poison.Parser.parse!/2
(poison) lib/poison.ex:83: Poison.decode!/2
(qiniu) lib/qiniu/http.ex:34: Qiniu.HTTP.request/4
(do_science) lib/do_science/web/controllers/editor_controller.ex:120: DoScience.Web.EditorController.delete_image/2
(do_science) lib/do_science/web/controllers/editor_controller.ex:1: DoScience.Web.EditorController.action/2
(do_science) lib/do_science/web/controllers/editor_controller.ex:1: DoScience.Web.EditorController.phoenix_controller_pipeline/2
(do_science) lib/do_science/web/endpoint.ex:1: DoScience.Web.Endpoint.instrument/4
(phoenix) lib/phoenix/router.ex:277: Phoenix.Router.call/1
(do_science) lib/do_science/web/endpoint.ex:1: DoScience.Web.Endpoint.plug_builder_call/2
(do_science) lib/plug/debugger.ex:123: DoScience.Web.Endpoint."call (overridable 3)"/2
(do_science) lib/do_science/web/endpoint.ex:1: DoScience.Web.Endpoint.call/2
(plug) lib/plug/adapters/cowboy/handler.ex:15: Plug.Adapters.Cowboy.Handler.upgrade/4
(cowboy) /home/cjen/Documents/do_science/deps/cowboy/src/cowboy_protocol.erl:442: :cowboy_protocol.execute/4

and the response in request in Qiniu.HTTP is

[debug] %HTTPoison.Response{body: "", headers: [{"Server", "openresty"}, {"Date", "Tue, 18 Apr 2017 09:40:53 GMT"}, {"Content-Type", "application/json"}, {"Content-Length", "0"}, {"Connection", "close"}, {"X-Log", "RA:101.71.81.88:80;rs9_3.sel:3;rs9_3.sel;rs9_3.ups;rwro.rm:4;MQ;mc.d;RS:7;ZONEPROXY:44;NUPROXY:64"}, {"X-Reqid", "YEEAAJN4Cd2HdLYU"}, {"X-Reqid", "YEEAAJN4Cd2HdLYU"}, {"X-Reqid", "YEEAAJN4Cd2HdLYU"}], status_code: 200}

put_policy = Qiniu.PutPolicy.build(@bucket, 
  return_body: ~s({"taked_at": ${avinfo.video.tags.creation_time}}))
IO.inspect Qiniu.Uploader.upload put_policy, file_path, key: "cool.mp4"

body: "{\"hash\":\"FpmaDb02KhRHGvaB9-MMKFWyqbwz\",\"key\":\"cool.mp4\"}"

body expected: "{\"taked_at\": \"2016-07-21 09:53:21\"}"

I read the document and found that the option keys in put_policy is not identical to the official document: http://developer.qiniu.com/article/developer/security/put-policy.html

Problem solved after modifying return_body to returnBody.