Question 1

How do I make HeliumLogger log to a file instead of stdout?

Accepted Answer

Use HeliumStreamLogger.use with a custom output stream, such as a FileOutputStream, but note that file management like rotation isn't built-in. You'll need to handle stream redirection manually, as referenced in the README's features section.

Question 2

Can HeliumLogger handle asynchronous logging for better performance?

Accepted Answer

No, HeliumLogger does not natively support asynchronous logging. It logs directly to the output stream, which could block in high-throughput scenarios. For async needs, consider wrapping it in custom code or using a more feature-rich logger.

Question 3

HeliumLogger vs SwiftyBeaver: which is better for Swift iOS apps?

Accepted Answer

HeliumLogger is lighter and focuses on server-side Swift with dual API support, while SwiftyBeaver offers more features like multiple log destinations (files, cloud) and is more suited for iOS/macOS. Choose HeliumLogger for simplicity and Kitura/Swift-log compatibility; SwiftyBeaver for richer features.

Question 4

How to change the log format in HeliumLogger to include custom fields?

Accepted Answer

Set the 'format' property with a string containing placeholders like %date, %type, %file, %line, %func, and %msg. For example, use logger.format = '[(%date)] (%msg)' to customize output, as detailed in the 'Further customization' section.

Question 5

Does HeliumLogger work with Vapor or other Swift web frameworks?

Accepted Answer

Yes, if the framework uses Swift-log, you can bootstrap HeliumLogger as the logging backend via HeliumLogger.bootstrapSwiftLog(). However, for frameworks with custom logging, integration might require additional configuration or adapters.

Question 6

What happens if I use both LoggerAPI and Swift-log with HeliumLogger in the same project?

Accepted Answer

You can use HeliumLogger for both APIs independently, but be aware of inconsistencies: logging levels are handled differently, and customization might not apply uniformly. It's best to stick to one API per project to avoid confusion.

HeliumLogger

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