@erin-living/serverless-observability

AWS Lambda Powertools wrappers for Logger, Tracer, and Metrics, with sensible defaults for Erin services (environment, region, and shared metric names). Metrics require an explicit CloudWatch namespace per service so consumers (e.g. erin-core vs erin-IoT) never mix data by accident.

Install

pnpm add @erin-living/serverless-observability
# or
yarn add @erin-living/serverless-observability

Powertools types (single dependency)

Logger, LoggerInterface, Metrics, and MetricUnit are re-exported so apps do not need a separate direct dependency on @aws-lambda-powertools/logger / @aws-lambda-powertools/metrics for those symbols.

import { MetricUnit } from "@erin-living/serverless-observability"
import type { Logger, LoggerInterface } from "@erin-living/serverless-observability"
import type { Metrics } from "@erin-living/serverless-observability"

Usage (erin-core–style Lambda)

import {
  createLogger,
  createTracer,
  createMetrics,
  StandardMetrics,
} from "@erin-living/serverless-observability"

const logger = createLogger({ serviceName: "erin-core" })
const tracer = createTracer({ serviceName: "erin-core" })
const metrics = createMetrics({ serviceName: "erin-core", namespace: "ErinCore" })

logger.info("Hello")
metrics.addMetric(StandardMetrics.API_CALLS, "Count", 1)

Types

import type { ILoggerOptions, IMetricsOptions, ITracerOptions } from "@erin-living/serverless-observability"

Environment

• STAGE / NODE_ENV — used for log level and dimensions (defaults to DEBUG outside production).
• AWS_REGION — included in logger persistent keys when set.

Source

Published from erinlab/packages/@erin-living/serverless/observability.