Sails JS with Redis for caching - api

Question

As I said in my previous questions, I am trying to learn how to use sails.js, what I'm trying to do now is to cache the response of an api to redis. I have searched on how to do this, but I can't make it to work. Without caching, I call the api through ajax.
Any thoughts on how I will be able to do it using my controller? How can I call the api using the controller in sails.js and cache the response using redis?

Answer 1

You can use https://github.com/mranney/node_redis
Steps:
Add to package.json
"redis": "^0.12.1"
Run
npm install
Create a service module /api/services/CachedLookup.js
var redis = require("redis"),
client = redis.createClient();
module.exports = {
rcGet: function (key, cb) {
client.get(key, function (err, value) {
return cb(value);
});
},
fetchApi1: function (cb) {
var key = 'KEY'
CachedLookup.rcGet(key, function (cachedValue) {
if (cachedValue)
return cb(cachedValue)
else {//fetch the api and cache the result
var request = require('request');
request.post({
url: URL,
form: {}
}, function (error, response, body) {
if(error) {
//handle error
}
else {
client.set(key, response);
return cb(response)
}
});
}
});
}
}
Inside the controller
CachedLookup.fetchApi1(function (apiResponse) {
res.view({
apiResponse: apiResponse
});
});