Ruby: How to post a file via HTTP as multipart/form-data?

ruby http post
kch picture kch · Oct 8, 2008 · Viewed 118.3k times · Source

I want to do an HTTP POST that looks like an HMTL form posted from a browser. Specifically, post some text fields and a file field.

Posting text fields is straightforward, there's an example right there in the net/http rdocs, but I can't figure out how to post a file along with it.

Net::HTTP doesn't look like the best idea. curb is looking good.

Answer

Pedro picture Pedro · Nov 25, 2008

I like RestClient. It encapsulates net/http with cool features like multipart form data:

require 'rest_client'
RestClient.post('http://localhost:3000/foo', 
  :name_of_file_param => File.new('/path/to/file'))

It also supports streaming.

gem install rest-client will get you started.

Related questions

Ruby rest-client file upload as multipart form data with basic authenticaion

I understand how to make an http request using basic authentication with Ruby's rest-client response = RestClient::Request.new(:method => :get, :url => @base_url + path, :user => @sid, :password => @token).execute and how to post a file as …

Read More
Handling POSTDATA in Sinatra

I'm trying to create a page in Sinatra, so that whatever you post (under the parameter name "command") will be echoed back to you. Here's my current approach: post '/eval' do "I got #{params[:data][:command]}." end If I …

Read More
How to make a HTTP request using Ruby on Rails?

I would like to take information from another website. Therefore (maybe) I should make a request to that website (in my case a HTTP GET request) and receive the response. How can I make this in Ruby on Rails? If …

Read More