MongoDB

The mongodbRetriever will use the mongoDB database to get your flags.

Example

err := ffclient.Init(ffclient.Config{
    PollingInterval: 3 * time.Second,
	  Retriever: &mongodbretriever.Retriever{
        Collection: "featureFlags",
        Database: "appConfig",
        URI: "mongodb://root:example@127.0.0.1:27017/",
    },
})
defer ffclient.Close()

Expected format

If you use MongoDB to store your flags, you need a specific format to store your flags.

We expect the flag to be stored in JSON format as defined in the flag format, but you should also add a new field called flag containing the name of the flag.

The retriever will read all the flags from the collection.

Example:

{
    "flag": "new-admin-access",
    "variations": {
        "default_var": false,
        "false_var": false,
        "true_var": true
    },
    "defaultRule": {
        "percentage": {
            "false_var": 70,
            "true_var": 30
        }
    }
}

Configuration fields

To configure your mongodb retriever:

Field	Description
Collection	Name of the collection where your flags are stored
Database	Name of the mongo database where the collection is located.
URI	Connection URI of your mongoDB instance.