fireplace server

server.js

root@fireplace:~# cat server.js 
var fs = require('fs');
var http = require('http');
const PORT=80; 

function write(file, content) {
        try {fs.writeFileSync(file, content)}
        catch (err) {console.error(err.message)}
}

write('/sys/class/gpio/export', 26);
write('/sys/class/gpio/gpio26/direction', 'out');
write('/sys/class/gpio/gpio26/value', 0);
http.createServer(function(request, response) {
        console.log('Handling request', request.url);
        if ( request.url === '/off' ) {
                write('/sys/class/gpio/gpio26/value', 0);
                response.end('off');
        } else if ( request.url === '/on' ) {
                write('/sys/class/gpio/gpio26/value', 1);
                response.end('on');
        } else if (request.url === '/toggle' ) {
                var oldValue = parseInt(fs.readFileSync('/sys/class/gpio/gpio26/value'));
                var newValue = oldValue === 0 ? 1 : 0
                write('/sys/class/gpio/gpio26/value', newValue);
                response.end(newValue === 0 ? 'off' : 'on');
        } else if (request.url === '/status' ) {
                response.end(JSON.stringify({
                        value: parseInt(fs.readFileSync('/sys/class/gpio/gpio26/value'))
                }))
        } else {
                response.end('404');
        }
}).listen(PORT, function() {
        console.log("Server listening on: http://localhost:%s", PORT);
})