gistfile1.txt

source 'https://github.com/CocoaPods/Specs.git'
platform :ios, "10.0"
use_frameworks!

target 'Locksmith-test' do
    pod 'Locksmith',
      :git => 'https://github.com/pascalfribi/Locksmith.git',
      :branch => 'swift-3.0'
end

Log

Locksmith: Saving data to keychain...
Locksmith: Receiving data from keychain...
Locksmith: Data received from keychain: nil

ViewController.swift

import UIKit
import Locksmith

class ViewController: UIViewController {
    
    override func viewDidLoad() {
        super.viewDidLoad()
        // Do any additional setup after loading the view, typically from a nib.
        
        let data: [String: Any] = ["username": "myUsername"]
        let account: String = "myUserAccount"
        let service: String = "myService"
        
        do {
            print("Locksmith: Saving data to keychain...")
            try Locksmith.saveData(data: data, forUserAccount: account, inService: service)
            
            print("Locksmith: Receiving data from keychain...")
            let result = Locksmith.loadDataForUserAccount(userAccount: account, inService: service)
            print("Locksmith: Data received from keychain: \(result)")
            
        } catch let error {
            print("Locksmith: Error! \(error.localizedDescription)")
        }
    }
    
    override func didReceiveMemoryWarning() {
        super.didReceiveMemoryWarning()
        // Dispose of any resources that can be recreated.
    }
}