@gvray/logger

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@gvray/logger / samplingMiddleware

Function: samplingMiddleware()

samplingMiddleware(rate): LogMiddleware

Defined in: middleware/sampling.ts:18

Middleware that randomly samples log entries.

Each log entry is forwarded with probability rate; the rest are dropped. Useful for controlling cost on high-throughput logs.

Parameters

rate

number

Probability of keeping a log entry, in [0, 1]. 1 keeps everything, 0 drops everything.

Returns

LogMiddleware

A LogMiddleware instance.

Example

logger.use(samplingMiddleware(0.1)); // keep ~10% of logs