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FileSink

courier::sinks::file

Struct FileSink 

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pub struct FileSink { /* private fields */ }
Expand description

Local file sink. Appends one record per envelope to the configured path in either JSON Lines or CSV format.

The file is opened lazily on first write, then kept in append mode and flushed after every write so validation can build this sink without file system side effects. Streaming writes are not transactional: a retried write after a partial failure may produce a duplicate row — WriteOne semantics, same as any other ManagedSink-wrapped sink.

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impl FileSink

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pub fn new( id: impl Into<String>, path: impl Into<PathBuf>, format: Format, ) -> Result<Self>

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impl WriteOne for FileSink

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fn id(&self) -> &str

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fn write<'life0, 'life1, 'async_trait>( &'life0 self, env: &'life1 Envelope, ) -> Pin<Box<dyn Future<Output = Result<()>> + Send + 'async_trait>>
where Self: 'async_trait, 'life0: 'async_trait, 'life1: 'async_trait,

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