Add Firebase Crashlytics for error reporting

Twigs.xcodeproj/project.pbxproj

@@ -39,6 +39,10 @@
 		801D08CE275F189E00931465 /* RecurringTransactionsRepository.swift in Sources */ = {isa = PBXBuildFile; fileRef = 801D08CD275F189E00931465 /* RecurringTransactionsRepository.swift */; };
 		801D08D2275FB7DE00931465 /* RecurringTransactionDetailsView.swift in Sources */ = {isa = PBXBuildFile; fileRef = 801D08D1275FB7DE00931465 /* RecurringTransactionDetailsView.swift */; };
 		802161D0277647920075761A /* AsyncObservableObject.swift in Sources */ = {isa = PBXBuildFile; fileRef = 802161CF277647920075761A /* AsyncObservableObject.swift */; };
+		8043704028CBEC6800F229F9 /* FirebaseAnalyticsWithoutAdIdSupport in Frameworks */ = {isa = PBXBuildFile; productRef = 8043703F28CBEC6800F229F9 /* FirebaseAnalyticsWithoutAdIdSupport */; };
+		8043704228CBEC6800F229F9 /* FirebaseCrashlytics in Frameworks */ = {isa = PBXBuildFile; productRef = 8043704128CBEC6800F229F9 /* FirebaseCrashlytics */; };
+		8043704528CBEDF400F229F9 /* ErrorReporter.swift in Sources */ = {isa = PBXBuildFile; fileRef = 8043704428CBEDF400F229F9 /* ErrorReporter.swift */; };
+		8043704728CBF16600F229F9 /* GoogleService-Info.plist in Resources */ = {isa = PBXBuildFile; fileRef = 8043704628CBF16600F229F9 /* GoogleService-Info.plist */; };
 		8043EB84271F26ED00498E73 /* CategoryDetailsView.swift in Sources */ = {isa = PBXBuildFile; fileRef = 8043EB83271F26ED00498E73 /* CategoryDetailsView.swift */; };
 		8044BA3927828E9D009A78D4 /* CategoryDataStore.swift in Sources */ = {isa = PBXBuildFile; fileRef = 8044BA3827828E9D009A78D4 /* CategoryDataStore.swift */; };
 		8044BA3B2784B659009A78D4 /* TransactionDetails.swift in Sources */ = {isa = PBXBuildFile; fileRef = 8044BA3A2784B659009A78D4 /* TransactionDetails.swift */; };
@@ -136,6 +140,8 @@
 		801D08D1275FB7DE00931465 /* RecurringTransactionDetailsView.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = RecurringTransactionDetailsView.swift; sourceTree = "<group>"; };
 		802161CF277647920075761A /* AsyncObservableObject.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = AsyncObservableObject.swift; sourceTree = "<group>"; };
 		8021EFAB280A0FA100043F18 /* TwigsCore */ = {isa = PBXFileReference; lastKnownFileType = wrapper; name = TwigsCore; path = ../TwigsCore; sourceTree = "<group>"; };
+		8043704428CBEDF400F229F9 /* ErrorReporter.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = ErrorReporter.swift; sourceTree = "<group>"; };
+		8043704628CBF16600F229F9 /* GoogleService-Info.plist */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = text.plist.xml; name = "GoogleService-Info.plist"; path = "../../../Downloads/GoogleService-Info.plist"; sourceTree = "<group>"; };
 		8043EB83271F26ED00498E73 /* CategoryDetailsView.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = CategoryDetailsView.swift; sourceTree = "<group>"; };
 		8044BA3827828E9D009A78D4 /* CategoryDataStore.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = CategoryDataStore.swift; sourceTree = "<group>"; };
 		8044BA3A2784B659009A78D4 /* TransactionDetails.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = TransactionDetails.swift; sourceTree = "<group>"; };
@@ -168,7 +174,9 @@
 			files = (
 				80D06DD1288C817800B50467 /* TwigsCore in Frameworks */,
 				8076A8522809FE99006B9DC9 /* Collections in Frameworks */,
+				8043704228CBEC6800F229F9 /* FirebaseCrashlytics in Frameworks */,
 				8076A84F2809FE8E006B9DC9 /* ArgumentParser in Frameworks */,
+				8043704028CBEC6800F229F9 /* FirebaseAnalyticsWithoutAdIdSupport in Frameworks */,
 			);
 			runOnlyForDeploymentPostprocessing = 0;
 		};
@@ -251,13 +259,13 @@
 		28AC94E1233C373900BFB70A = {
 			isa = PBXGroup;
 			children = (
+				8005FD59277E623900E48B23 /* Frameworks */,
 				80DBED432774AE4F00CB0A88 /* Packages */,
-				80A419EB2787C0A00090C515 /* twigs-cli */,
 				28AC94EB233C373900BFB70A /* Products */,
 				28AC94EC233C373900BFB70A /* Twigs */,
+				80A419EB2787C0A00090C515 /* twigs-cli */,
 				28AC9503233C373A00BFB70A /* TwigsTests */,
 				28AC950E233C373A00BFB70A /* TwigsUITests */,
-				8005FD59277E623900E48B23 /* Frameworks */,
 			);
 			sourceTree = "<group>";
 		};
@@ -275,6 +283,7 @@
 		28AC94EC233C373900BFB70A /* Twigs */ = {
 			isa = PBXGroup;
 			children = (
+				8043704628CBF16600F229F9 /* GoogleService-Info.plist */,
 				282126A4235BCB7500072D52 /* Twigs.entitlements */,
 				28AC94FB233C373A00BFB70A /* Info.plist */,
 				28CE8B9423525F990072BC4C /* Extensions.swift */,
@@ -298,6 +307,7 @@
 				802161CF277647920075761A /* AsyncObservableObject.swift */,
 				800DFC2B277FF47A00EDCE9B /* AsyncData.swift */,
 				80D2CE192833448500EDD6C2 /* DataStore.swift */,
+				8043704428CBEDF400F229F9 /* ErrorReporter.swift */,
 			);
 			path = Twigs;
 			sourceTree = "<group>";
@@ -404,6 +414,7 @@
 				28AC94E6233C373900BFB70A /* Sources */,
 				28AC94E7233C373900BFB70A /* Frameworks */,
 				28AC94E8233C373900BFB70A /* Resources */,
+				8043704328CBED4000F229F9 /* ShellScript */,
 			);
 			buildRules = (
 			);
@@ -414,6 +425,8 @@
 				8076A84E2809FE8E006B9DC9 /* ArgumentParser */,
 				8076A8512809FE99006B9DC9 /* Collections */,
 				80D06DD0288C817800B50467 /* TwigsCore */,
+				8043703F28CBEC6800F229F9 /* FirebaseAnalyticsWithoutAdIdSupport */,
+				8043704128CBEC6800F229F9 /* FirebaseCrashlytics */,
 			);
 			productName = Budget;
 			productReference = 28AC94EA233C373900BFB70A /* Twigs.app */;
@@ -517,6 +530,7 @@
 				8076A84A2809FE56006B9DC9 /* XCRemoteSwiftPackageReference "swift-argument-parser" */,
 				8076A84D2809FE8D006B9DC9 /* XCRemoteSwiftPackageReference "swift-argument-parser" */,
 				8076A8502809FE99006B9DC9 /* XCRemoteSwiftPackageReference "swift-collections" */,
+				8043703E28CBEC6800F229F9 /* XCRemoteSwiftPackageReference "firebase-ios-sdk" */,
 			);
 			productRefGroup = 28AC94EB233C373900BFB70A /* Products */;
 			projectDirPath = "";
@@ -537,6 +551,7 @@
 			files = (
 				28AC94FA233C373A00BFB70A /* LaunchScreen.storyboard in Resources */,
 				28AC951F233C381C00BFB70A /* Localizable.strings in Resources */,
+				8043704728CBF16600F229F9 /* GoogleService-Info.plist in Resources */,
 				28AC94F7233C373A00BFB70A /* Preview Assets.xcassets in Resources */,
 				28AC94F4233C373A00BFB70A /* Assets.xcassets in Resources */,
 			);
@@ -558,6 +573,28 @@
 		};
 /* End PBXResourcesBuildPhase section */
 
+/* Begin PBXShellScriptBuildPhase section */
+		8043704328CBED4000F229F9 /* ShellScript */ = {
+			isa = PBXShellScriptBuildPhase;
+			buildActionMask = 2147483647;
+			files = (
+			);
+			inputFileListPaths = (
+			);
+			inputPaths = (
+				"${DWARF_DSYM_FOLDER_PATH}/${DWARF_DSYM_FILE_NAME}/Contents/Resources/DWARF/${TARGET_NAME}",
+				"$(SRCROOT)/newInputFile",
+			);
+			outputFileListPaths = (
+			);
+			outputPaths = (
+			);
+			runOnlyForDeploymentPostprocessing = 0;
+			shellPath = /bin/sh;
+			shellScript = "# Type a script or drag a script file from your workspace to insert its path.\n\"${BUILD_DIR%/Build/*}/SourcePackages/checkouts/firebase-ios-sdk/Crashlytics/run\"\n";
+		};
+/* End PBXShellScriptBuildPhase section */
+
 /* Begin PBXSourcesBuildPhase section */
 		28AC94E6233C373900BFB70A /* Sources */ = {
 			isa = PBXSourcesBuildPhase;
@@ -604,6 +641,7 @@
 				284102302342D97300EAFA29 /* BudgetListsView.swift in Sources */,
 				282126BD235CDE1400072D52 /* ProgressView.swift in Sources */,
 				806C7850272B700B00FA1375 /* TwigsApp.swift in Sources */,
+				8043704528CBEDF400F229F9 /* ErrorReporter.swift in Sources */,
 				808CA1A928355B30002EDD59 /* BudgetFormView.swift in Sources */,
 				80AF7A982835ED3B009565C6 /* RecurringTransactionFormView.swift in Sources */,
 				28CE8B9523525F990072BC4C /* Extensions.swift in Sources */,
@@ -800,7 +838,8 @@
 				CODE_SIGN_ENTITLEMENTS = Twigs/Twigs.entitlements;
 				"CODE_SIGN_IDENTITY[sdk=macosx*]" = "Apple Development";
 				CODE_SIGN_STYLE = Automatic;
-				CURRENT_PROJECT_VERSION = 18;
+				CURRENT_PROJECT_VERSION = 19;
+				DEBUG_INFORMATION_FORMAT = "dwarf-with-dsym";
 				DERIVE_MACCATALYST_PRODUCT_BUNDLE_IDENTIFIER = YES;
 				DEVELOPMENT_ASSET_PATHS = "\"Twigs/Preview Content\"";
 				DEVELOPMENT_TEAM = 9Z6DE6KNJ9;
@@ -829,7 +868,7 @@
 				CODE_SIGN_ENTITLEMENTS = Twigs/Twigs.entitlements;
 				"CODE_SIGN_IDENTITY[sdk=macosx*]" = "Apple Development";
 				CODE_SIGN_STYLE = Automatic;
-				CURRENT_PROJECT_VERSION = 18;
+				CURRENT_PROJECT_VERSION = 19;
 				DERIVE_MACCATALYST_PRODUCT_BUNDLE_IDENTIFIER = YES;
 				DEVELOPMENT_ASSET_PATHS = "\"Twigs/Preview Content\"";
 				DEVELOPMENT_TEAM = 9Z6DE6KNJ9;
@@ -1014,6 +1053,14 @@
 /* End XCConfigurationList section */
 
 /* Begin XCRemoteSwiftPackageReference section */
+		8043703E28CBEC6800F229F9 /* XCRemoteSwiftPackageReference "firebase-ios-sdk" */ = {
+			isa = XCRemoteSwiftPackageReference;
+			repositoryURL = "https://github.com/firebase/firebase-ios-sdk";
+			requirement = {
+				kind = upToNextMajorVersion;
+				minimumVersion = 9.0.0;
+			};
+		};
 		8076A84A2809FE56006B9DC9 /* XCRemoteSwiftPackageReference "swift-argument-parser" */ = {
 			isa = XCRemoteSwiftPackageReference;
 			repositoryURL = "https://github.com/apple/swift-argument-parser.git";
@@ -1057,6 +1104,16 @@
 /* End XCRemoteSwiftPackageReference section */
 
 /* Begin XCSwiftPackageProductDependency section */
+		8043703F28CBEC6800F229F9 /* FirebaseAnalyticsWithoutAdIdSupport */ = {
+			isa = XCSwiftPackageProductDependency;
+			package = 8043703E28CBEC6800F229F9 /* XCRemoteSwiftPackageReference "firebase-ios-sdk" */;
+			productName = FirebaseAnalyticsWithoutAdIdSupport;
+		};
+		8043704128CBEC6800F229F9 /* FirebaseCrashlytics */ = {
+			isa = XCSwiftPackageProductDependency;
+			package = 8043703E28CBEC6800F229F9 /* XCRemoteSwiftPackageReference "firebase-ios-sdk" */;
+			productName = FirebaseCrashlytics;
+		};
 		8076A84E2809FE8E006B9DC9 /* ArgumentParser */ = {
 			isa = XCSwiftPackageProductDependency;
 			package = 80A419F12787C13E0090C515 /* XCRemoteSwiftPackageReference "swift-argument-parser" */;

Twigs.xcodeproj/project.xcworkspace/xcshareddata/swiftpm/Package.resolved

@@ -1,6 +1,105 @@
 {
   "object": {
     "pins": [
+      {
+        "package": "abseil",
+        "repositoryURL": "https://github.com/firebase/abseil-cpp-SwiftPM.git",
+        "state": {
+          "branch": null,
+          "revision": "583de9bd60f66b40e78d08599cc92036c2e7e4e1",
+          "version": "0.20220203.2"
+        }
+      },
+      {
+        "package": "BoringSSL-GRPC",
+        "repositoryURL": "https://github.com/firebase/boringssl-SwiftPM.git",
+        "state": {
+          "branch": null,
+          "revision": "dd3eda2b05a3f459fc3073695ad1b28659066eab",
+          "version": "0.9.1"
+        }
+      },
+      {
+        "package": "Firebase",
+        "repositoryURL": "https://github.com/firebase/firebase-ios-sdk",
+        "state": {
+          "branch": null,
+          "revision": "7f31a43f8c49bd4a1723bc9fecdfaa4411dd9f36",
+          "version": "9.5.0"
+        }
+      },
+      {
+        "package": "GoogleAppMeasurement",
+        "repositoryURL": "https://github.com/google/GoogleAppMeasurement.git",
+        "state": {
+          "branch": null,
+          "revision": "f54f60d0164d887e1174fa51ab2efe48a8e9d178",
+          "version": "9.3.0"
+        }
+      },
+      {
+        "package": "GoogleDataTransport",
+        "repositoryURL": "https://github.com/google/GoogleDataTransport.git",
+        "state": {
+          "branch": null,
+          "revision": "5056b15c5acbb90cd214fe4d6138bdf5a740e5a8",
+          "version": "9.2.0"
+        }
+      },
+      {
+        "package": "GoogleUtilities",
+        "repositoryURL": "https://github.com/google/GoogleUtilities.git",
+        "state": {
+          "branch": null,
+          "revision": "f4abe56ce62a779e64b525eb133c8fc2a84bbc1f",
+          "version": "7.7.1"
+        }
+      },
+      {
+        "package": "gRPC",
+        "repositoryURL": "https://github.com/grpc/grpc-ios.git",
+        "state": {
+          "branch": null,
+          "revision": "8440b914756e0d26d4f4d054a1c1581daedfc5b6",
+          "version": "1.44.3-grpc"
+        }
+      },
+      {
+        "package": "GTMSessionFetcher",
+        "repositoryURL": "https://github.com/google/gtm-session-fetcher.git",
+        "state": {
+          "branch": null,
+          "revision": "19605024d59eaefdb1f6a2cb11ebe75df4421126",
+          "version": "2.0.0"
+        }
+      },
+      {
+        "package": "leveldb",
+        "repositoryURL": "https://github.com/firebase/leveldb.git",
+        "state": {
+          "branch": null,
+          "revision": "0706abcc6b0bd9cedfbb015ba840e4a780b5159b",
+          "version": "1.22.2"
+        }
+      },
+      {
+        "package": "nanopb",
+        "repositoryURL": "https://github.com/firebase/nanopb.git",
+        "state": {
+          "branch": null,
+          "revision": "819d0a2173aff699fb8c364b6fb906f7cdb1a692",
+          "version": "2.30909.0"
+        }
+      },
+      {
+        "package": "Promises",
+        "repositoryURL": "https://github.com/google/promises.git",
+        "state": {
+          "branch": null,
+          "revision": "3e4e743631e86c8c70dbc6efdc7beaa6e90fd3bb",
+          "version": "2.1.1"
+        }
+      },
       {
         "package": "swift-argument-parser",
         "repositoryURL": "https://github.com/apple/swift-argument-parser.git",
@@ -18,6 +117,15 @@
           "revision": "48254824bb4248676bf7ce56014ff57b142b77eb",
           "version": "1.0.2"
         }
+      },
+      {
+        "package": "SwiftProtobuf",
+        "repositoryURL": "https://github.com/apple/swift-protobuf.git",
+        "state": {
+          "branch": null,
+          "revision": "b8230909dedc640294d7324d37f4c91ad3dcf177",
+          "version": "1.20.1"
+        }
       }
     ]
   },

Twigs/DataStore.swift

@@ -16,6 +16,7 @@ private let LAST_BUDGET = "LAST_BUDGET"
 @MainActor
 class DataStore : ObservableObject {
     let apiService: TwigsApiService
+    let errorReporter: ErrorReporter
     @Published var budgets: AsyncData<[Budget]> = .empty
     @Published var budget: AsyncData<Budget> = .empty {
         didSet {
@@ -66,9 +67,11 @@ class DataStore : ObservableObject {
     }
 
     init(
-        _ apiService: TwigsApiService
+        _ apiService: TwigsApiService,
+        errorReporter: ErrorReporter = LoggingErrorReporter()
     ) {
         self.apiService = apiService
+        self.errorReporter = errorReporter
         self.baseUrl = UserDefaults.standard.string(forKey: KEY_BASE_URL) ?? ""
         self.apiService.baseUrl = baseUrl
         self.token = UserDefaults.standard.string(forKey: KEY_TOKEN)
@@ -95,6 +98,7 @@ class DataStore : ObservableObject {
                 }
             }
         } catch {
+            self.errorReporter.reportError(error: error)
             self.budgets = .error(error)
             showBudgetSelection = true
         }
@@ -120,6 +124,7 @@ class DataStore : ObservableObject {
                 self.budgets = .success(updatedBudgets.sorted(by: { $0.name < $1.name }))
             }
         } catch {
+            self.errorReporter.reportError(error: error)
             self.budget = .error(error, budget)
         }
     }
@@ -136,6 +141,7 @@ class DataStore : ObservableObject {
                 self.budgets = .success(budgets.filter(withoutId: budget.id))
             }
         } catch {
+            self.errorReporter.reportError(error: error)
             self.budget = .error(error, budget)
         }
     }
@@ -188,6 +194,7 @@ class DataStore : ObservableObject {
             }
             self.overview = .success(budgetOverview)
         } catch {
+            self.errorReporter.reportError(error: error)
             self.overview = .error(error)
         }
     }
@@ -241,6 +248,7 @@ class DataStore : ObservableObject {
             let categories = try await apiService.getCategories(budgetId: budgetId, expense: expense, archived: archived, count: count, page: page)
             self.categories = .success(categories)
         } catch {
+            self.errorReporter.reportError(error: error)
             self.categories = .error(error)
         }
     }
@@ -262,6 +270,7 @@ class DataStore : ObservableObject {
                 self.categories = .success(updatedCategories.sorted(by: { $0.title < $1.title }))
             }
         } catch {
+            self.errorReporter.reportError(error: error)
             self.category = .error(error, category)
         }
     }
@@ -276,6 +285,7 @@ class DataStore : ObservableObject {
                 self.categories = .success(categories.filter(withoutId: category.id))
             }
         } catch {
+            self.errorReporter.reportError(error: error)
             self.category = .error(error, category)
         }
     }
@@ -336,6 +346,7 @@ class DataStore : ObservableObject {
             }
             self.recurringTransactions = .success(recurringTransactions)
         } catch {
+            self.errorReporter.reportError(error: error)
             self.recurringTransactions = .error(error)
         }
     }
@@ -381,6 +392,7 @@ class DataStore : ObservableObject {
             }
             await self.getRecurringTransactions()
         } catch {
+            self.errorReporter.reportError(error: error)
             self.recurringTransactions = .error(error)
         }
     }
@@ -392,6 +404,7 @@ class DataStore : ObservableObject {
             self.recurringTransaction = .empty
             await self.getRecurringTransactions()
         } catch {
+            self.errorReporter.reportError(error: error)
             self.recurringTransaction = .error(error, transaction)
         }
     }
@@ -436,6 +449,7 @@ class DataStore : ObservableObject {
             let groupedTransactions = OrderedDictionary<String,[Transaction]>(grouping: transactions, by: { $0.date.toLocaleString() })
             self.transactions = .success(groupedTransactions)
         } catch {
+            self.errorReporter.reportError(error: error)
             self.transactions = .error(error)
         }
     }
@@ -456,6 +470,7 @@ class DataStore : ObservableObject {
             }
             await getTransactions()
         } catch {
+            self.errorReporter.reportError(error: error)
             self.transaction = .error(error, transaction)
         }
     }
@@ -467,6 +482,7 @@ class DataStore : ObservableObject {
             self.transaction = .empty
             await getTransactions()
         } catch {
+            self.errorReporter.reportError(error: error)
             self.transaction = .error(error, transaction)
         }
     }
@@ -555,6 +571,7 @@ class DataStore : ObservableObject {
             self.userId = response.userId
             await self.loadProfile()
         } catch {
+            self.errorReporter.reportError(error: error)
             switch error {
             case NetworkError.jsonParsingFailed(let jsonError):
                 print(jsonError.localizedDescription)
@@ -589,6 +606,7 @@ class DataStore : ObservableObject {
         do {
             _ = try await apiService.register(username: username, email: email, password: password)
         } catch {
+            self.errorReporter.reportError(error: error)
             switch error {
             case NetworkError.jsonParsingFailed(let jsonError):
                 print(jsonError.localizedDescription)
@@ -630,6 +648,7 @@ class DataStore : ObservableObject {
             self.currentUser = .success(user)
             await getBudgets()
         } catch {
+            self.errorReporter.reportError(error: error)
             self.currentUser = .error(error)
         }
     }
@@ -644,6 +663,7 @@ class DataStore : ObservableObject {
             self.currentUser = .success(updated)
             return nil
         } catch {
+            self.errorReporter.reportError(error: error)
             self.currentUser = .error(error, current)
             return .unavailable
         }
@@ -662,6 +682,7 @@ class DataStore : ObservableObject {
             self.currentUser = .success(updated)
             return nil
         } catch {
+            self.errorReporter.reportError(error: error)
             self.currentUser = .error(error, current)
             return .unavailable
         }
@@ -680,6 +701,7 @@ class DataStore : ObservableObject {
             self.currentUser = .success(updated)
             return nil
         } catch {
+            self.errorReporter.reportError(error: error)
             self.currentUser = .error(error, current)
             return .unknown
         }
@@ -695,6 +717,7 @@ class DataStore : ObservableObject {
             self.currentUser = .success(updated)
             return true
         } catch {
+            self.errorReporter.reportError(error: error)
             self.currentUser = .error(error, current)
             return false
         }
@@ -707,6 +730,7 @@ class DataStore : ObservableObject {
             let user = try await self.apiService.getUser(id)
             self.user = .success(user)
         } catch {
+            self.errorReporter.reportError(error: error)
             self.currentUser = .error(error)
         }
     }

Twigs/ErrorReporter.swift

@@ -0,0 +1,26 @@
+//
+//  ErrorReporter.swift
+//  Twigs
+//
+//  Created by William Brawner on 9/9/22.
+//  Copyright © 2022 William Brawner. All rights reserved.
+//
+
+import Foundation
+import FirebaseCrashlytics
+
+protocol ErrorReporter {
+    func reportError(error: Error)
+}
+
+class LoggingErrorReporter: ErrorReporter {
+    func reportError(error: Error) {
+        print(error)
+    }
+}
+
+class FirebaseErrorReporter: ErrorReporter {
+    func reportError(error: Error) {
+        Crashlytics.crashlytics().record(error: error)
+    }
+}

Twigs/GoogleService-Info.plist

@@ -0,0 +1,36 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
+<plist version="1.0">
+<dict>
+	<key>CLIENT_ID</key>
+	<string>527070722499-8qtkq1oqkveapng949atmdt7l38r75ps.apps.googleusercontent.com</string>
+	<key>REVERSED_CLIENT_ID</key>
+	<string>com.googleusercontent.apps.527070722499-8qtkq1oqkveapng949atmdt7l38r75ps</string>
+	<key>API_KEY</key>
+	<string>AIzaSyDzEcz1sz65JXpujOfFrRqUG2kD_tooA50</string>
+	<key>GCM_SENDER_ID</key>
+	<string>527070722499</string>
+	<key>PLIST_VERSION</key>
+	<string>1</string>
+	<key>BUNDLE_ID</key>
+	<string>com.wbrawner.projects.budget.ios</string>
+	<key>PROJECT_ID</key>
+	<string>budget-c7da5</string>
+	<key>STORAGE_BUCKET</key>
+	<string>budget-c7da5.appspot.com</string>
+	<key>IS_ADS_ENABLED</key>
+	<false></false>
+	<key>IS_ANALYTICS_ENABLED</key>
+	<false></false>
+	<key>IS_APPINVITE_ENABLED</key>
+	<true></true>
+	<key>IS_GCM_ENABLED</key>
+	<true></true>
+	<key>IS_SIGNIN_ENABLED</key>
+	<true></true>
+	<key>GOOGLE_APP_ID</key>
+	<string>1:527070722499:ios:0e0c4e20d30697df73e576</string>
+	<key>DATABASE_URL</key>
+	<string>https://budget-c7da5.firebaseio.com</string>
+</dict>
+</plist>

Twigs/Views/MainView.swift

@@ -6,16 +6,26 @@
 //  Copyright © 2021 William Brawner. All rights reserved.
 //
 
+import FirebaseCore
 import SwiftUI
 import TwigsCore
 
+class AppDelegate: NSObject, UIApplicationDelegate {
+  func application(_ application: UIApplication,
+                   didFinishLaunchingWithOptions launchOptions: [UIApplication.LaunchOptionsKey : Any]? = nil) -> Bool {
+    FirebaseApp.configure()
+    return true
+  }
+}
+
 struct MainView: View {
+    @UIApplicationDelegateAdaptor(AppDelegate.self) var delegate
     @StateObject var dataStore: DataStore
     let apiService: TwigsApiService
     
     init(_ apiService: TwigsApiService) {
         self.apiService = apiService
-        self._dataStore = StateObject(wrappedValue: DataStore(apiService))
+        self._dataStore = StateObject(wrappedValue: DataStore(apiService, errorReporter: FirebaseErrorReporter()))
     }
     
     @ViewBuilder