Molasses

A feature toggle library using redis. It allows to roll out to users based on a percentage of users or alternatively to a set of users or user ids

Installation

If available in Hex, the package can be installed as:

  1. Add molasses to your list of dependencies in mix.exs:
```elixir

def deps do

  [{:molasses, "~> 0.1.0"}]

end

```
  1. Ensure molasses is started before your application:
```elixir

def application do

  [applications: [:molasses]]

end

```

Usage

Using ExRedis create a new client and pass it into the feature toggle library

{:ok, client} = Exredis.start_link



# activate a feature

Molasses.activate(client, :my_feature)



# activate a feature for a percentage of users

Molasses.activate(client, :my_feature, 75)



# activate a feature for a subset of integer based userIds 

Molasses.activate(client, :my_feature, [2, 4, 5])



# activate a feature for a subset of string based userIds (think a mongoId) or a list of groups

Molasses.activate(client, :my_feature, ["reallylongid", "long id"])



# activate a feature for only one user or group 

Molasses.activate(client, :my_feature, "reallylongid")

Molasses.activate(client, :my_feature, 7)





# checking if a feature is active for all users

Molasses.is_active(client, :my_feature)



# checking if a feature is active for a specific user (based on percentage, or user id/group)

Molasses.is_active(client, :my_feature, identifier)



# deactivate a feature

Molasses.deactivate(client, :my_feature)

To do