CurlでPOSTデータを送る

JSON形式で送るとき
https://www.google.co.jp/search?q=wget+post+%E3%83%AA%E3%82%AF%E3%82%A8%E3%82%B9%E3%83%88&ie=utf-8&oe=utf-8&aq=t&hl=ja&gws_rd=ssl#hl=ja&q=curl+json+post+

curl -v -H "Accept: application/json" -H "Content-type: application/json" -X POST -d '{"product":{"name":"hoge","quantity":"hoge","location":"hoge"}}'  http://localhost:3000/products

画像も含めて送るとき
http://stackoverflow.com/questions/11401553/curl-request-to-upload-image-from-local-machine-to-ruby-on-rails-application
Content-typeにapplication/octet-streamも許可した。

class Product < ActiveRecord::Base
  has_attached_file :photo, :styles => { :medium => "300x300>", :thumb => "100x100>" }
  validates_attachment_content_type :photo, :content_type => %w(image/jpeg image/jpg image/png 'image/gif' application/octet-stream) #application/octet-streamを追加
  validates_presence_of :name, :quantity, :location
end

Protect from forgeryのレベルを変更

class ApplicationController < ActionController::Base
  # Prevent CSRF attacks by raising an exception.
  # For APIs, you may want to use :null_session instead.
  #protect_from_forgery with: :exception
  protect_from_forgery with: :null_session #変更
end

 curl -i -v -H 'Content-Type: multipart/form-data' -H 'Accept: application/json' -F "product[name]=hogehoge" -F "product[quantity]=hogehoge" -F "product[location]=hogehoge" -F "product[photo]=@Ghana.png" http://localhost:3000/products    


* Adding handle: conn: 0x7f892c80aa00
* Adding handle: send: 0
* Adding handle: recv: 0
* Curl_addHandleToPipeline: length: 1
* - Conn 0 (0x7f892c80aa00) send_pipe: 1, recv_pipe: 0
* About to connect() to localhost port 3000 (#0)
*   Trying ::1...
*   Trying 127.0.0.1...
* Connected to localhost (127.0.0.1) port 3000 (#0)
> POST /products HTTP/1.1
> User-Agent: curl/7.30.0
> Host: localhost:3000
> Accept: application/json
> Content-Length: 11138
> Expect: 100-continue
> Content-Type: multipart/form-data; boundary=----------------------------295e0abb2f9a
> 
* Done waiting for 100-continue
< HTTP/1.1 201 Created 
HTTP/1.1 201 Created 
< X-Frame-Options: SAMEORIGIN
X-Frame-Options: SAMEORIGIN
< X-Xss-Protection: 1; mode=block
X-Xss-Protection: 1; mode=block
< X-Content-Type-Options: nosniff
X-Content-Type-Options: nosniff
< Location: http://localhost:3000/products/10
Location: http://localhost:3000/products/10
< Content-Type: application/json; charset=utf-8
Content-Type: application/json; charset=utf-8
< Etag: "42228d0d801806f787ecfec29bdb7c11"
Etag: "42228d0d801806f787ecfec29bdb7c11"
< Cache-Control: max-age=0, private, must-revalidate
Cache-Control: max-age=0, private, must-revalidate
< X-Request-Id: 24403851-34f9-4dd6-bd88-e6758669975a
X-Request-Id: 24403851-34f9-4dd6-bd88-e6758669975a
< X-Runtime: 0.191101
X-Runtime: 0.191101
* Server WEBrick/1.3.1 (Ruby/2.1.1/2014-02-24) is not blacklisted
< Server: WEBrick/1.3.1 (Ruby/2.1.1/2014-02-24)
Server: WEBrick/1.3.1 (Ruby/2.1.1/2014-02-24)
< Date: Thu, 12 Jun 2014 11:50:05 GMT
Date: Thu, 12 Jun 2014 11:50:05 GMT
< Content-Length: 239
Content-Length: 239
< Connection: Keep-Alive
Connection: Keep-Alive

< 
* Connection #0 to host localhost left intact
{"id":10,"name":"hogehoge","quantity":"hogehoge","location":"hogehoge","note":null,"photo":"/system/products/photos/000/000/010/original/Ghana.png?1402573805","created_at":"2014-06-12T11:50:05.394Z","updated_at":"2014-06-12T11:50:05.394Z"}