Add breadcrumbs to Sentry for all analytics events

CHANGELOG.md

@@ -18,6 +18,7 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 - Localized strings on the feed filter drop-down view.
 - Disabled automatic tracking in Sentry. [#126](https://github.com/verse-pbc/issues/issues/126)
 - Track TestFlight vs AppStore installations in Posthog. [#130](https://github.com/verse-pbc/issues/issues/130)
+- Track breadcrumbs in Sentry for all analytics events. [#125](https://github.com/verse-pbc/issues/issues/125)
 
 ## [1.1] - 2025-01-03Z
 

Nos/Service/Analytics.swift

@@ -1,15 +1,18 @@
-import UIKit
-import PostHog
 import Dependencies
 import Logger
+import PostHog
 import Starscream
+import UIKit
 
 /// An object to manage analytics data, currently wired up to send data to PostHog and registered as a global
 /// dependency using the Dependencies library.
 class Analytics {
 
     private let postHog: PostHogSDK?
 
+    /// When an analytics event is tracked, we also create a breadcrumb in our crash reporter.
+    @Dependency(\.crashReporting) private var crashReporting
+
     required init(mock: Bool = false) {
         let apiKey = Bundle.main.infoDictionary?["POSTHOG_API_KEY"] as? String ?? ""
         if !mock && !apiKey.isEmpty {
@@ -145,15 +148,6 @@ class Analytics {
         track("Logged out")
         postHog?.reset()
     }
-
-    private func track(_ eventName: String, properties: [String: Any] = [:]) {
-        if properties.isEmpty {
-            Log.info("Analytics: \(eventName)")
-        } else {
-            Log.info("Analytics: \(eventName): \(properties)")
-        }
-        postHog?.capture(eventName, properties: properties)
-    }
 
     /// Tracks the source of the app download when the user launches the app.
     func trackInstallationSourceIfNeeded() {
@@ -327,3 +321,21 @@ class Analytics {
         track("Mentions Autocomplete Opened")
     }
 }
+
+extension Analytics {
+    /// Tracks the event with the given properties in the analytics provider.
+    /// Also calls ``CrashReporting/trackBreadcrumb(_:)`` to track this event as a breadcrumb in our crash reporter.
+    /// - Parameters:
+    ///   - eventName: The event name to track.
+    ///   - properties: The properties to include with the event.
+    private func track(_ eventName: String, properties: [String: Any] = [:]) {
+        if properties.isEmpty {
+            Log.info("Analytics: \(eventName)")
+        } else {
+            Log.info("Analytics: \(eventName): \(properties)")
+        }
+        postHog?.capture(eventName, properties: properties)
+
+        crashReporting.trackBreadcrumb(eventName)
+    }
+}

Nos/Service/CrashReporting.swift

@@ -51,7 +51,17 @@ class CrashReporting {
         Log.error("Reporting error to Crash Reporting service: \(errorMessage)")
         sentry.capture(message: errorMessage)
     }
-
+
+    /// Adds a breadcrumb for the given event name for tracking in our error reporting tool (Sentry).
+    /// - Parameter eventName: The event for which to add a breadcrumb.
+    func trackBreadcrumb(_ eventName: String) {
+        let crumb = Breadcrumb()
+        crumb.level = SentryLevel.info
+        crumb.category = "analytics"
+        crumb.message = eventName
+        SentrySDK.addBreadcrumb(crumb)
+    }
+
     func logout() {
         SentrySDK.setUser(nil)
     }