FeatureOne.File

FeatureOne.File

Feature toggles with File system Backend.

In addition to all FeatureOne offerings, the FeatureOne.File package provides out of box File storage provider.

File support can easily be installed as a separate nuget package.

$ dotnet add package FeatureOne.File --version {latest}

File Setup

Requires creating a feature file with JSON feature toggles as shown below.

File - Features.json

{
	"gbk_dashboard": {
		"toggle": {
			"operator": "any",
			"conditions": [{
					"type": "simple",
					"isEnabled": false
				},
				{
					"type": "Regex",
					"claim": "email",
					"expression": "^[a-zA-Z0-9_.+-][email protected]"
				}
			]
		}
	},
	"dashboard_widget": {
		"toggle": {
			"conditions": [{
				"type": "simple",
				"isEnabled": true
			}]
		}
	}
}

Bootstrap initialization

See below bootstrap initialization for FeatureOne with SQL backend.

File Configuration - Set file path string and cache settings.

    var configuration = new FileConfiguration
    {
        // Absolute path to the feature file.
        FilePath ="C:\Work\Features.json",
        
        // Enable cache with absolute expiry in Minutes.
        CacheSettings = new CacheSettings 
        {
            EnableCache = true,  
            Expiry = new CacheExpiry
            {
                InMinutes = 60,
                Type = CacheExpiryType.Absolute
            }
        }
    }

i. With File configuration.

   var storageProvider = new FileStorageProvider(configuration);
   Features.Initialize(() => new Features(new FeatureStore(configuration)));

ii. With Custom logger implementation, default is no logger.

    var logger = new CustomLoggerImpl();
    var storageProvider = new FileStorageProvider(configuration, logger);

    Features.Initialize(() => new Features(new FeatureStore(storageProvider, logger), logger));

iii. With other overloads - Custom cache and Toggle Condition deserializer.

    var toggleConditionDeserializer = CustomConditionDeserializerImpl(); // Implements IConditionDeserializer 
    var featureCache = CustomFeatureCache(); // Implements ICache

    var storageProvider = new FileStorageProvider(configuration, featureCache, toggleConditionDeserializer);

    Features.Initialize(() => new Features(new FeatureStore(storageProvider, logger), logger));