Curl request to upload image from local machine to ruby on rails application

you would normally upload a file like this:

curl -i -F filedata=@upload.txt http://localhost:5000/

doing so mimics the behavior that you would have through a webbrowsers file upload.

if you look at the rails response for this, it's sent via application/octet-stream that can be handled properly as an uploaded file. as far as i know it's not possible to do this with a json request:

Started POST "/" for 127.0.0.1 at 2012-07-10 09:40:59 +0200Processing by HomeController#index as */*  Parameters: {"filedata"=>#<ActionDispatch::Http::UploadedFile:0x007f82d59a3580 @original_filename="upload.txt", @content_type="application/octet-stream", @headers="Content-Disposition: form-data; name=\"filedata\"; filename=\"upload.txt\"\r\nContent-Type: application/octet-stream\r\n", @tempfile=#<File:/var/folders/f_/wjnrg7cd3d9f1tpy3k5fhrwm0000gn/T/RackMultipart20120710-30471-1t9abns>>}

I had the same problem and I solved it with the following, which bypass the JSON request:

curl -v -H 'Content-Type: multipart/form-data' -H 'Accept: application/json' -H 'x-api-key:myapikey' -F "user[first_name]=firstname" -F "user[last_name]=lastname" -F "user[display_photo]=@test.jpg" http://localhost:3000/users/8 

curl -v -include --form "<param>=@/<root>/image_name.png" http://<your url>**<param>**: The image parameter of the url;**<root>**: You can use pwd get image root;**<your url>**: Post url;