/var/www/testapp/index.js

index.js

'use strict';


const redis = require('redis'),
      co = require('co'),
      coRedis = require('co-redis'),
      Koa = require('koa'),
      config = require('./app.json');


const app = exports.app = new Koa(),
      client  = redis.createClient(
        config.env.REDIS_PORT.value,
        config.env.REDIS_HOST.value
      ),
      dbCo = coRedis(client);

if (config.env.REDIS_SECRET.value) {
  client.auth(config.env.REDIS_SECRET.value);
}

client.on('error', function (err) {
  console.log('Redis client error: ' + err);
});


app.use(co.wrap(function* (ctx) {
  var indexkey;

  if (ctx.request.query.index_key) {
    indexkey = config.env.APP_NAME.value +':'+   ctx.request.query.index_key;
  } else {
    indexkey = config.env.APP_NAME.value +':current-content';
  }

  var index = yield dbCo.get(indexkey);

  if (index) {
    ctx.body = index;
  } else {
    ctx.status = 404;
  }
}));


var server = app.listen(process.env.PORT || 8782);


process.on('SIGINT', function () {
  server.close(function () {
    process.exit(0);
  });
});