Uploading an image to imgur.com using ruby

1. Go to http://www.imgur.com and create an account.
2. Go to https://api.imgur.com/oauth2/addclient
   1. Give a name to your app
   2. Select Anonymous usage without user authorization in Authorization type.
   3. Provide your email.
   4. Give a description for the app.
   5. Fill in the captcha.
   6. Click Submit.
      
3. You will get an email with your client_id and your client_secret.
4. If you intend to upload anonymously, you only need to use your client_id.
5. Make a POST request to https://api.imgur.com/3/upload.json with the following properties:
   1. A header called Authorization with the value Client-ID <client_id>.
   2. A parameter called image with the image data encoded in Base64.

Example in ruby (replace <client_id> with your client_id ):

#!/usr/bin/ruby

require 'net/http'
require 'uri'
require 'base64'
require 'json'

filename = "image.png"

imagedata = Base64.encode64(File.read(filename))

url = "https://api.imgur.com/3/upload.json"
params = {image: imagedata}

uri = URI.parse(url)

https = Net::HTTP.new(uri.host, uri.port)
https.use_ssl = true

request = Net::HTTP::Post.new(uri.path)
request["Authorization"] = "Client-ID <client_id>"
request.set_form_data(params)

response = https.request(request)

hash = JSON.parse(response.body)
link = hash["data"]["link"]

puts hash
puts link