iOS (Swift)

Features

Local caching: Flag values cached locally for instant access

OpenFeature compatible: Standard feature flag API through OpenFeature provider

Automatic apply events: Tracks flag assignments when your application reads flags

Custom event tracking: Sends application events through the OpenFeature Tracking API

Managed context: Automatic visitor ID and opt-in device information context

Offline support: Cached values available without network

Automatic apply events record flag assignments without explicit tracking calls. Custom tracking events are separate and require a call to the OpenFeature client’s track method.

Installation

Add the package dependency to your Package.swift:

dependencies: [
    .package(url: "git@github.com:spotify/confidence-sdk-swift.git", from: "<latest>")
]

Then add the products to your target:

.product(name: "Confidence", package: "confidence-sdk-swift"),
.product(name: "ConfidenceOpenFeature", package: "confidence-sdk-swift"),

Quickstart

The SDK uses OpenFeature for flag evaluation.

import Confidence
import ConfidenceProvider
import OpenFeature

// Initialize Confidence
let confidence = Confidence.Builder(clientSecret: "your-client-secret", loggerLevel: .NONE)
    .build()

// Create OpenFeature provider with initial context
let provider = ConfidenceFeatureProvider(confidence: confidence)
let ctx = ImmutableContext(
    targetingKey: "user-123",
    structure: ImmutableStructure()
)

// Register with OpenFeature
await OpenFeatureAPI.shared.setProviderAndWait(provider: provider, initialContext: ctx)

// Get client and evaluate a flag
let client = OpenFeatureAPI.shared.getClient()
let value = client.getBooleanValue(key: "my-flag.my-boolean", defaultValue: false)
print("Flag value: \(value)")

// Track a custom application event
client.track(key: "checkout")

Get Started

Feature Flags

Server SDKs

Client SDKs

Edge Resolvers

Events

Recordings

CLI

Features

Installation

Quickstart

Resources

GitHub repository

OpenFeature iOS SDK

Context

Apply events

​Features

​Installation

​Quickstart

​Resources

GitHub repository

OpenFeature iOS SDK

Context

Apply events

Features

Installation

Quickstart

Resources