removed useless exit from app

app/object-storage/object-storage.go

@@ -42,28 +42,32 @@ func FakeTransaction(transactionToFake Transaction, fakeTransaction Transaction,
 
 func ReadDatabaseFromBlobStorage(blob Blob) Database {
 	ctx := context.Background()
+	var database Database
 
 	// Download the blob
 	get, err := blob.BlockBlobClient.Download(ctx, nil)
 	if err != nil {
-		log.Fatal(err)
+		log.Println(err)
+		return database
 	}
 
 	downloadedData := &bytes.Buffer{}
 	reader := get.Body(azblob.RetryReaderOptions{})
 	_, err = downloadedData.ReadFrom(reader)
 	if err != nil {
-		log.Fatal(err)
+		log.Println(err)
+		return database
 	}
 	err = reader.Close()
 	if err != nil {
-		log.Fatal(err)
+		log.Println(err)
+		return database
 	}
 
-	var database Database
 	err = json.Unmarshal(downloadedData.Bytes(), &database)
 	if err != nil {
-		log.Fatal(err)
+		log.Println(err)
+		return database
 	}
 	fmt.Println(downloadedData.String())
 
@@ -75,23 +79,23 @@ func readGivenBlobFromContainer(blob Blob, data any) any {
 	ctx := context.Background()
 	get, err := blob.BlockBlobClient.Download(ctx, nil)
 	if err != nil {
-		log.Fatal(err)
+		log.Println(err)
 	}
 
 	downloadedData := &bytes.Buffer{}
 	reader := get.Body(azblob.RetryReaderOptions{})
 	_, err = downloadedData.ReadFrom(reader)
 	if err != nil {
-		log.Fatal(err)
+		log.Println(err)
 	}
 	err = reader.Close()
 	if err != nil {
-		log.Fatal(err)
+		log.Println(err)
 	}
 
 	err = json.Unmarshal(downloadedData.Bytes(), &data)
 	if err != nil {
-		log.Fatal(err)
+		log.Println(err)
 	}
 
 	fmt.Println(downloadedData.String())
@@ -106,7 +110,7 @@ func WriteDatabaseToBlobStorage(database Database, blob Blob) {
 	_, err = blob.BlockBlobClient.UploadBufferToBlockBlob(ctx, data, azblob.HighLevelUploadToBlockBlobOption{})
 
 	if err != nil {
-		log.Fatalf("Failure to upload to blob: %+v", err)
+		log.Printf("Failure to upload to blob: %+v", err)
 	}
 }
 
@@ -118,7 +122,7 @@ func writeGivenDataToBlob(blob Blob, data any) {
 	_, err = blob.BlockBlobClient.UploadBufferToBlockBlob(ctx, dataBytes, azblob.HighLevelUploadToBlockBlobOption{})
 
 	if err != nil {
-		log.Fatalf("Failure to upload to blob: %+v", err)
+		log.Printf("Failure to upload to blob: %+v", err)
 	}
 }
 
@@ -137,12 +141,12 @@ func InitAzureCredentials(storageAccountName string) AzureCredentials {
 	// Create a default request pipeline using your storage account name and account key.
 	credential, err := azidentity.NewDefaultAzureCredential(nil)
 	if err != nil {
-		log.Fatal("Invalid credentials with error: " + err.Error())
+		log.Println("Invalid credentials with error: " + err.Error())
 	}
 
 	serviceClient, err := azblob.NewServiceClient(url, credential, nil)
 	if err != nil {
-		log.Fatal("Invalid credentials with error: " + err.Error())
+		log.Println("Invalid credentials with error: " + err.Error())
 	}
 
 	newAzureCredentials := AzureCredentials{
@@ -212,7 +216,7 @@ func ListBlobs(blob Blob) {
 	}
 
 	if err := pager.Err(); err != nil {
-		log.Fatalf("Failure to list blobs: %+v", err)
+		log.Printf("Failure to list blobs: %+v", err)
 	}
 }