Cacher Pro

Middleware for intelligence cache system using memory, filesystem, redis or mongoDB with NodeJS Frameworks

• Usage
• Configurations and Options
• License
• Authors

Usage

Very simple, only you need to:

• instance the cacher-pro passing a storage client (ex.: redis) as option
• and pass the handle function as a middleware in your routes

import express from 'express';
import redis from 'redis';
import cacher from 'cacher-pro';
 
const app = express();
 
const cacherMidlleWare = cacher({
    redis : redis.createClient()
});
 
var fruits = ['orange', 'banana', 'apple'];
app.get('/fruits', cacherMidlleWare.handle, (req : any, res : any)=>{
    res.json({'result' : fruits});
});
 
app.get('/fruits/:id', cacherMidlleWare.handle, (req : any, res : any)=>{
    res.json({'result' : fruits[req.params.id]});
});
 
app.post('/fruits', cacherMidlleWare.handle, (req : any, res : any)=>{
    if(req.body.fruit){
        fruits.push(req.body.fruit);
        res.json("[POST] - Fruit inserted!");
    }
});
 
app.listen(3333, ()=>console.log("Running Server [Using Cacher Pro]"));

Cacher-pro release the cache memory when its detect a write operation POST, PUT, PATCH or DELETE to the cached resource

For use the prefix api you can configure cacher-pro with the .cacher.json configuration file. When the write operations in a resource affects others resources read results you can configure it using the mutual_resources properties. Its also recommended to use mutual_resources for api's that don't uses strictly the REST pattern

{
    "debug" : false, //optional, set to true for see logs info
    "api_prefix" : "api/v1", //optional, you may use the  "api/*" value for all version configuration
    "mutual_resources" : [
        ["fruits", "trees"],
        ["persons", "people"]
    ]//optional
}

For development or testing environment you may not pass the storage client and it will use the memory storage. Its supports the following storages clients:

• Memory (default)
• Redis (recomended)

Configuration and Options

const options = {
    redis : redis.createClient()
}
 
const cacherMidlleWare = cacher(options);

• redis - the redis storage client

License

GNU Affero GPL

Authors

Kissema Eduardo Rafael (kissema1@gmail.com)

Sponsored By