Algolia Search API Client for Swift

Algolia Search is a hosted full-text, numerical, and faceted search engine capable of delivering realtime results from the first keystroke. The Algolia Search API Client for Swift lets you easily use the Algolia Search REST API from your Swift code.

As a complement to this readme, you can browse the automatically generated reference documentation. (See also the offline-enabled version.)

<Welcome Objective-C developers>

In July 2015, we released a new version of our Swift client, able to work with Swift and Objective-C. As of version 3 (April 2016), Swift has become the reference implementation for both Swift and Objective-C projects. The Objective-C API Client is no longer under active development. It is still supported for bug fixes, but will not receive new features.

If you were using our Objective-C client, read the migration guide from Objective-C.

</Welcome Objective-C developers>

If you were using version 2.x of our Swift client, read the migration guide to version 3.x.

API Documentation

You can find the full reference on Algolia's website.

Table of Contents

1. Supported platforms

2. Install

3. Quick Start

   • Initialize the client
   • Push data
   • Search
   • Configure

4. Getting Help

Getting Started

Supported platforms

Our Swift client is supported on iOS, macOS, tvOS and watchOS, and is usable from both Swift and Objective-C.

Install

1. Add a dependency on AlgoliaSearch-Client-Swift:
   • CocoaPods: add pod 'AlgoliaSearch-Client-Swift', '~> 4.0' to your Podfile.
   • Carthage: add github "algolia/algoliasearch-client-swift" to your Cartfile.
2. Add import AlgoliaSearch to your source files.

Quick Start

In 30 seconds, this quick start tutorial will show you how to index and search objects.

Initialize the client

You first need to initialize the client. For that you need your Application ID and API Key. You can find both of them on your Algolia account.

let client = Client(appID: "YourApplicationID", apiKey: "YourAPIKey")

Push data

Without any prior configuration, you can start indexing 500 contacts in the contacts index using the following code:

// Load content file
let jsonURL = Bundle.main.url(forResource: "contacts", withExtension: "json")
let jsonData = try! Data(contentsOf: jsonURL!)
let dict = try! JSONSerialization.jsonObject(with: jsonData!)

// Load all objects in the JSON file into an index named "contacts".
let index = client.index(withName: "contacts")
index.addObjects(dict["objects"])

Search

You can now search for contacts using firstname, lastname, company, etc. (even with typos):

// search by firstname
index.search(Query(query: "jimmie"), completionHandler: { (content, error) -> Void in
	if error == nil {
		print("Result: \(content)")
	}
})
// search a firstname with typo
index.search(Query(query: "jimie"), completionHandler: { (content, error) -> Void in
	if error == nil {
		print("Result: \(content)")
	}
})
// search for a company
index.search(Query(query: "california paint"), completionHandler: { (content, error) -> Void in
	if error == nil {
		print("Result: \(content)")
	}
})
// search for a firstname & company
index.search(Query(query: "jimmie paint"), completionHandler: { (content, error) -> Void in
	if error == nil {
		print("Result: \(content)")
	}
})

Configure

Settings can be customized to tune the search behavior. For example, you can add a custom sort by number of followers to the already great built-in relevance:

let customRanking = ["desc(followers)"]
let settings = ["customRanking": customRanking]
index.setSettings(settings, completionHandler: { (content, error) -> Void in
	if error != nil {
		print("Error when applying settings: \(error!)")
	}
})

You can also configure the list of attributes you want to index by order of importance (first = most important):

Note: Since the engine is designed to suggest results as you type, you'll generally search by prefix. In this case the order of attributes is very important to decide which hit is the best:

let customRanking = ["lastname", "firstname", "company", "email", "city", "address"]
let settings = ["searchableAttributes": customRanking]
index.setSettings(settings, completionHandler: { (content, error) -> Void in
	if error != nil {
		print("Error when applying settings: \(error!)")
	}
})

Getting Help

• Need help? Ask a question to the Algolia Community or on Stack Overflow.
• Found a bug? You can open a GitHub issue.