📝 document application logger aliases

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2026-06-13 20:48:22 +08:00
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---
name: application-async-logger
group: api
category: facade
update-time: 20260613
description: Application-facing alias for the runtime-sink async logger surface.
key-word:
- application
- async
- alias
- public
---
## Application-async-logger
`ApplicationAsyncLogger` is the application-facing async logger alias. It currently maps directly to `AsyncLogger[@bitlogger.RuntimeSink]` and keeps the same async lifecycle, state, and queue helper surface.
### Interface
```moonbit
pub type ApplicationAsyncLogger = AsyncLogger[@bitlogger.RuntimeSink]
```
#### output
- `ApplicationAsyncLogger` - Application-facing name for the runtime-sink async logger shape.
### Explanation
Detailed rules explaining key parameters and behaviors
- This alias does not introduce a new runtime type or wrapper layer.
- It preserves the same async lifecycle helpers such as `run()`, `shutdown()`, `pending_count()`, and `state()`.
- The alias exists to give application boot code a clearer public type name for the standard runtime-sink async logger.
- Builders such as `build_application_async_logger(...)` and `parse_and_build_application_async_logger(...)` return this alias.
### How to Use
Here are some specific examples provided.
#### When Need An App-level Name For The Standard Async Runtime Logger
When application code wants a stable public type name for the runtime-sink async logger:
```moonbit
let logger : ApplicationAsyncLogger = build_application_async_logger(
AsyncLoggerBuildConfig::new(logger=LoggerConfig::new(target="app.async")),
)
```
In this example, the application alias keeps the same underlying async logger behavior while presenting an app-facing type name.
#### When Pass The Async Logger Through App-level APIs
When top-level boot code or services should expose an application-oriented async logger type:
```moonbit
fn start_async(logger : ApplicationAsyncLogger) -> Unit {
logger.run()
}
```
In this example, callers see the app-facing alias instead of the more explicit generic async logger spelling.
### Error Case
e.g.:
- Because this is only an alias, any runtime-sink limitations or target-specific async behavior still apply unchanged.
- If code needs a narrower public surface than the full async logger API, `LibraryAsyncLogger` is the better facade.
### Notes
1. This alias is about naming and public intent, not a different async implementation.
2. Use `build_application_async_logger(...)` or `parse_and_build_application_async_logger(...)` for the usual construction paths.
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---
name: application-logger
group: api
category: facade
update-time: 20260613
description: Application-facing alias for the configured sync runtime logger surface.
key-word:
- application
- facade
- alias
- public
---
## Application-logger
`ApplicationLogger` is the application-facing sync logger alias. It currently maps directly to `ConfiguredLogger` and keeps the same runtime helper surface for sync logging, queue inspection, and file controls.
### Interface
```moonbit
pub type ApplicationLogger = ConfiguredLogger
```
#### output
- `ApplicationLogger` - Application-facing name for the configured sync runtime logger shape.
### Explanation
Detailed rules explaining key parameters and behaviors
- This alias does not introduce a new runtime type or wrapper layer.
- It preserves the same logging, queue, and file helper APIs exposed by `ConfiguredLogger`.
- The alias exists to give application boot code a clearer public entry name.
- Builders such as `build_application_logger(...)` and `parse_and_build_application_logger(...)` return this alias.
### How to Use
Here are some specific examples provided.
#### When Need An App-level Name For The Configured Runtime Logger
When application code wants a stable public type name for the configured sync logger:
```moonbit
let logger : ApplicationLogger = build_application_logger(LoggerConfig::new(target="app"))
```
In this example, the application alias keeps the same underlying runtime logger behavior while presenting an app-facing type name.
#### When Pass The Configured Logger Through App-level APIs
When top-level boot code or services should expose an application-oriented logger type:
```moonbit
fn start(logger : ApplicationLogger) -> Unit {
logger.info("started")
}
```
In this example, callers see the app-facing alias instead of the lower-level `ConfiguredLogger` name.
### Error Case
e.g.:
- Because this is only an alias, any backend limitations of `ConfiguredLogger` still apply unchanged.
- If code needs a narrower public surface than the full configured runtime logger, `LibraryLogger` is the better facade.
### Notes
1. This alias is about naming and public intent, not a different runtime implementation.
2. Use `build_application_logger(...)` or `parse_and_build_application_logger(...)` for the usual construction paths.
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---
name: application-text-async-logger
group: api
category: facade
update-time: 20260613
description: Application-facing alias for the text-console async logger surface.
key-word:
- application
- async
- text
- public
---
## Application-text-async-logger
`ApplicationTextAsyncLogger` is the application-facing async logger alias for text-console output. It currently maps directly to `AsyncLogger[@bitlogger.FormattedConsoleSink]` and keeps the same async lifecycle and queue helper surface while preserving the concrete text sink shape.
### Interface
```moonbit
pub type ApplicationTextAsyncLogger = AsyncLogger[@bitlogger.FormattedConsoleSink]
```
#### output
- `ApplicationTextAsyncLogger` - Application-facing name for the text-console async logger shape.
### Explanation
Detailed rules explaining key parameters and behaviors
- This alias does not introduce a new runtime type or wrapper layer.
- It preserves the same async lifecycle helpers as other async logger aliases.
- The alias exists to give application code a clearer public name when it wants the concrete text-console sink shape explicitly.
- `build_application_text_async_logger(...)` returns this alias.
### How to Use
Here are some specific examples provided.
#### When Need An App-level Name For Text-console Async Output
When application code wants a stable type name for a text-console async logger:
```moonbit
let logger : ApplicationTextAsyncLogger = build_application_text_async_logger(
AsyncLoggerBuildConfig::new(logger=text_console(target="app.text.async")),
)
```
In this example, the application alias keeps the same underlying async logger behavior while preserving the text sink shape explicitly.
#### When Pass A Text-console Async Logger Through App-level APIs
When caller code should know it is working with the text-console variant:
```moonbit
fn start_text_async(logger : ApplicationTextAsyncLogger) -> Unit {
logger.run()
}
```
In this example, the app-facing alias communicates the concrete text-console async shape directly.
### Error Case
e.g.:
- Because this is only an alias, any async target limitations or runtime behavior still apply unchanged.
- If code does not need the concrete text-console sink shape, `ApplicationAsyncLogger` is the broader runtime-sink async alias.
### Notes
1. This alias is about naming and public intent, not a different async implementation.
2. Use `build_application_text_async_logger(...)` when callers want the `FormattedConsoleSink`-backed async type explicitly.
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@@ -217,6 +217,7 @@ BitLogger API navigation.
- [library-logger-info.md](./library-logger-info.md)
- [library-logger-warn.md](./library-logger-warn.md)
- [library-logger-error.md](./library-logger-error.md)
- [application-logger.md](./application-logger.md)
- [build-application-logger.md](./build-application-logger.md)
- [parse-and-build-application-logger.md](./parse-and-build-application-logger.md)
- [build-library-logger.md](./build-library-logger.md)
@@ -236,6 +237,8 @@ BitLogger API navigation.
- [library-async-logger-error.md](./library-async-logger-error.md)
- [library-async-logger-run.md](./library-async-logger-run.md)
- [library-async-logger-shutdown.md](./library-async-logger-shutdown.md)
- [application-async-logger.md](./application-async-logger.md)
- [application-text-async-logger.md](./application-text-async-logger.md)
- [build-application-async-logger.md](./build-application-async-logger.md)
- [build-application-text-async-logger.md](./build-application-text-async-logger.md)
- [parse-and-build-application-async-logger.md](./parse-and-build-application-async-logger.md)