Add File to Github

gistfile1.rb

require 'rest_client'

access_token = YOUR_TOKEN
github_user = "whoisstan"
github_repo = "test_for_github_api"
path = "test7.html"
content = Base64.encode64('my file content2')
sha = nil
url="https://api.github.com/repos/#{github_user}/#{github_repo}/contents/#{path}"

#does the path exist already, if yes get the sha code
RestClient.get(url,{ params:{access_token:access_token},accept:'json'}){ |response, request, result| 
      sha=JSON.parse(response)['sha'] if response.code==200
}
RestClient.put url, { message: "my message", content: content, sha: sha }.to_json,{ params:{access_token:access_token},accept:'json'}