deployd redis caching

delete.js

if(!ctx.server.redisClient) {
    var redis = require('redis');
    ctx.server.redisClient = redis.createClient(global.process.env.REDIS_URL);
}


if (!internal || !query.key) return;
//console.log('cache deleting', query.key);

ctx.server.redisClient.del(query.key, function(err) {
    if (err) {
        console.error(err);
    }
    setResult({ok: true});
});

get.js

if(!ctx.server.redisClient) {
    var redis = require('redis');
    ctx.server.redisClient = redis.createClient(global.process.env.REDIS_URL);
}

if (!internal || !query.key) return;
//console.log('cache getting', query.key);

$addCallback();
ctx.server.redisClient.get(query.key, function(err, value) {
    if (err || !value) {
      ctx.res.statusCode = 404;
      $finishCallback();
      return;
    }
    //console.log('got redis cache item for', query.key, value.length);
    setResult(JSON.parse(value));
    $finishCallback();
});

post.js

if(!ctx.server.redisClient) {
    var redis = require('redis');
    ctx.server.redisClient = redis.createClient(global.process.env.REDIS_URL);
}

if (!internal || !body.key) return;
console.log('cache setting', body.key);

$addCallback();
ctx.server.redisClient.set(body.key, JSON.stringify(body.data), function(err) {
    if (err) {
        console.error(err);
    }
    ctx.server.redisClient.expire(body.key, 60); // expire key in 60 seconds

    setResult({ok: true});
    $finishCallback();
});