cache-manager-mongoose

Mongoose store for node-cache-manager (See https://github.com/BryanDonovan/node-cache-manager)

Originally created as an alternative to node-cache-manager-mongodb store
to be able to use an existing mongoose connection.

Usage examples

This store expects that the mongoose instance is provided explicitely.

It is not a concern of this module to establish a connection,
but it rather assumes that you already have one and use it in your project.

``javascript
const
mongoose = require("mongoose"),
cacheManager = require("cache-manager"),
mongooseStore = require("cache-manager-mongoose");

mongoose.connect("mongodb://127.0.0.1/test");

const cache = cacheManager.caching({
store: mongooseStore,
mongoose: mongoose
});

// now you can use cache as any other cache-manager cache

`

$3

All optionas are optional, except for mongoose instance.

The store creates a new Model on initialization, which you can partially customize. See example:

`javascript
const cache = cacheManager.caching({
store: mongooseStore,
mongoose: mongoose, // mongoose instance
modelName: "MyModelName", // model name in mongoose registry

// options for model creation
modelOptions: {
collection: "cacheman_rcp" // mongodb collection name
versionKey: false // do not create __v field
},

ttl: 300 // time to live - 5 minutes (default is 1 minute),

connection: connection, // provide only when using mongoose.createConnection()
});
`

If you want to keep your cache forever, set TTL to zero (0)

The default modelOptions are:
`json
{
"collection": "MongooseCache",
"versionKey": false,
"read": "secondaryPreferred"
}
`

$3

You can also provide your own model as long as it has the same
fields as the one used by default.

In this case you don't need to provide a mongoose instance,
as all it boils down to is a model object.

Here is an example:

`javascript
const schema = new mongoose.Schema(
{
// standard fields
_id: String,
val: mongoose.Schema.Types.Mixed,
exp: Date,

// all other fields you like
foo: String,
bar: Number
},
{
collection: "my_collection",
versionKey: false
}
);

schema.index(
{exp: 1},
{expireAfterSeconds: 0}
);
schema.index({foo: 1});

const model = mongoose.model("MyModel", schema);

const cache = cacheManager.caching({
store: mongooseStore,
model: model
});
``