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PredictionIO Swift SDK

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The Swift SDK provides a convenient API for your iOS and OS X application to record your users' behaviors in the event server and retrieve predictions from PredictionIO engines.

Requirements

iOS 7.0+ or OS X 10.9+
Xcode 6.1

Installation

Cocoapods

Only CocoaPods 0.36.0 beta (and rc1) supports Swift and embedded frameworks. So CocoaPods needs to be installed with the following command.

$ gem install cocoapods --pre

Add the following lines to your Podfile.

# platform must be at least iOS 8.0 to use dynamic frameworks
platform :ios, '8.0'
use_frameworks!

pod 'PredictionIOSDK', :git => 'https://github.com/minhtule/PredictionIO-Swift-SDK.git'

Then run the following command.

$ pod install

Finally, import the SDK in your Swift files before using.

import PredictionIOSDK

Manually

You can just drag two files: PredictionIOSDK.swift and Alamofire.swift into your project.

Note that Alamofire.swift has been slightly modified from the original; however, if you have already integrated the original Alamofire.swift file to your project, you don't need to include Alamofire.swift from this repo again.

Usage

EngineClient

Use EngineClient to query predictions from the PredictionIO Engines.

let engineClient = EngineClient(baseURL: "http://localhost:8000")
let query = [
    "user": 1,
    "num": 2
]
        
engineClient.sendQuery(query) { (request, response, JSON, error) in
    if let data = JSON as? [String: [[String: AnyObject]]] {
        ...
    }
    ...
}

EventClient

Use EventClient to send information to the PredictionIO Event Server.

let eventClient = EventClient(accessKey: accessKey, baseURL: "http://localhost:7070")
let event = Event(
    event: "rate",
    entityType: "user",
    entityID: "1",
    targetEntityType: "item",
    targetEntityID: "9",
    properties: [
        "rating": 5
    ]
)

eventClient.createEvent(event) { (request, response, JSON, error) in
    ...
}

There are other convenient methods to modify user‘s or item’s properties. Please see the API documentation for more details.

Documentation

The latest API documentation is available at http://minhtule.github.io/PredictionIO-Swift-SDK/index.html.

iOS Demo App

Please follow this quick guide to start the Event Server and set up a Recommendation Engine on your local machine first.

You also need to:

Include your app's access key in DataCollectorViewController.swift.
Import some data using the python script as instructed in step 4b. Alternatively, you can use the demo app to record new rating events; however, remember to re-train and deploy the engine before querying for recommendations.
Run the iPhone or iPad simulator!

There are 2 screens in the demo app:

Data Collector: corresponding to step 4a. Collecting Data in the quick guide.
Item Recommendation: corresponding to step 6. Use the Engine in the quick guide.

License

PredictionIO Swift SDK is released under the Apache License 2.0. Please see LICENSE for details.

PredictionIO iOS / OS X SDK