deprecated!

btcbtn

• today bitcoin enabled websites have a line with a bitcoin address so you can copy and paste it to donate some bitcoins

• btcbtn is a system to switch this copy paste line into a button so you need only (at the time) 2 clicks to donate an amount of bitcoins

• you don't need to register with a third service where you put your bitcoins into a remote wallet

• unfortunatly the client side needs this software running in the background and bitcoin in the PATH when running btcbtn or provide the path to your bitcoin executable as an argument

  btcbtn [--bitcoin=<PATH TO BITCOIN>] [--daemon]

• quit btcbtn with killall btcbtn when you called it as a daemon :P

the button

• put this link or the code for the button on your website and substitute at least the bitcoin address with your bitcoin address

• change also the amount if you like in both places

  <a href="http://localhost:8170/donate/12UjAGVyKwmH3dN7TmEvxGLf3iomNX8G43?amount=0.1">
    donate 0.1 BTC <br>
    12UjAGVyKwmH3dN7TmEvxGLf3iomNX8G43
  </a>

• the same a little bit styled

  <div class="btcbtn"
      style="
          display: inline-block;
          margin: 0.1em;
          padding: 0.5em;
          -khtml-border-radius: 0.3em;
          -moz-border-radius: 0.3em;
          -webkit-border-radius: 0.3em;
          border-radius: 0.3em;
          background-color: #CCFF55;
      ">
      <a href="http://localhost:8170/donate/12UjAGVyKwmH3dN7TmEvxGLf3iomNX8G43?amount=0.1">
          donate 0.1 BTC <br>
          12UjAGVyKwmH3dN7TmEvxGLf3iomNX8G43
      </a>
  </div>

architecture

• it uses python and its batteries

• listen on localhost:8170

• show confirmation site on HTTP GET /donate/[0-9a-zA-Z]+?amount=(\d+(.\d+)?) which has a link to the confirmation

• donate on confirmation

• to donate, call bitcoin sendtoaddress ADDRESS AMOUNT

future plans

• fraud prevention for browsers which don't show the url line
• a better styled button
• integration with bitcoin
• donate with latency so you can revoke a donation and dont need a confirmation ultimately resulting in 1-click bitcoin transfer