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for the user

adventures into the land of the command line

sentry and swift

Integrate sentry into your swift application.

// AppDelegate.swift

import Sentry

class AppDelegate: UIResponder, UIApplicationDelegate {

    var window: UIWindow?

    func application(_ application: UIApplication, didFinishLaunchingWithOptions launchOptions: [UIApplicationLaunchOptionsKey: Any]?) -> Bool {

        // Create a Sentry client and start crash handler
        do {
            Client.shared = try Client(dsn: "https://515b3example:[email protected]/123456")
            try Client.shared?.startCrashHandler()
        } catch let error {
            // Wrong DSN or KSCrash not installed

        return true



The sentry listener will automagically send the stack trace when the app crashes. But what if you want to send arbitrary messages whenever you want?

// SomeView.swift

import Sentry

func someFunction() {
    let tokenEvent = Event(level: .debug)
    tokenEvent.message = "localToken"
    tokenEvent.extra = ["localToken": localStorage.value(forKey: "token") as! String]
    Client.shared?.send(event: tokenEvent) { (error) in
        // Optional callback after event has been send
        print("localToken sent")

    let someEvent = Event(level: .debug)
    someEvent.message = "something"
    someEvent.extra = ["something": "wow so cool"]
    Client.shared?.send(event: someEvent) { (error) in
        // Optional callback after event has been send
        print("someEvent sent")

There’s probs more but this is all I used it for so far…