loopback-cache

loopback-cache

Cache solutions for Loopback.

How to use

Install

npm install loopback-cache --save

Config

To load the mixins.

# model-config.json
{
  "_meta": {
    ...
    "mixins": [
      ...
      "loopback-cache/mixins",
      ...
    ]
  },
  ...
}

To use the redis backend, setup a model using the redis connector or the ioredis connector and use the mixin CacheModel with the model. The TTL is in seconds, see http://redis.io/commands/expire.

# The model JSON
{
  ...
  "mixins": {
    "CacheModel": {
      "backend": "redis",
      "ttl": 3600
    }
  },
  ...
}

To use the couchbase backend, setup a model using the couchbase3 connector and use the mixin CacheModel with the model. The TTL is in seconds, for value larger than 30 * 24 * 60 * 60 seconds (30 days), it would be converted to absolute times (from the epoch) in seconds, see http://docs.couchbase.com/sdk-api/couchbase-node-client-2.1.2/Bucket.html#touch.

# The model JSON
{
  ...
  "mixins": {
    "CacheModel": {
      "backend": "couchbase",
      "ttl": 3600
    }
  },
  ...
}

Extending

Note: This module doesn't do anything on the DB or table level. For example MongoDB would require a special index that matches the field, which should be prepared before you start the application.

To add the support for a specific connector (it's a model mixin so we are talking connectors not DB directly), extend this module in a place that will be executed (for example boot).

var loopbackCache = require('loopback-cache');

And add a new backend (you can also override backends). See https://github.com/Wiredcraft/loopback-cache/tree/master/backends for examples.

loopbackCache.backends.something = function(Model, options) {};

Now you can use it in the model JSON, same as any other backend.

{
  "mixins": {
    "CacheModel": {
      "backend": "something",
      "ttl": 3600
    }
  }
}

Contributing

If you want to add a new backend to the module, just drop the file in the backends directory, and send us a PR.

Git Summary

 project  : loopback-cache
 repo age : 11 months
 active   : 16 days
 commits  : 46
 files    : 18
 authors  :
    22  CCharlieLi   47.8%
    22  Makara Wang  47.8%
     2  fraserxu     4.3%