08. Winston

Enrich logs with additional context or metadata. For example, you might add user-specific information or request context.

Elasticsearch Integration Elasticsearch is commonly used for log storage and search. To integrate Winston with Elasticsearch, you can use the winston-elasticsearch transport. Cloud Logging Services For cloud-based logging solutions like AWS CloudWatch or Google Cloud Logging:

To filter logs based on criteria, you can use custom log formats or transports.

Logging can impact performance. Here are some tips:

You might need to adjust log levels dynamically, for example, via an environment variable or a configuration file.

In an Express application, you can create middleware to log HTTP requests and responses.

Application Performance Management (APM) tools like New Relic, Datadog, or Dynatrace can be used alongside Winston for enhanced monitoring.

For aggregating logs from multiple sources, you can use tools like Fluentd, Logstash, or Graylog. Here’s how you might configure Winston to send logs to Fluentd: Then set up the transport:

Structured logging involves logging in a format that makes it easy to search and analyze logs. JSON is a common structured logging format. Structured logs are easy to query and analyze with tools like Elasticsearch, Kibana, or log aggregators.

Winston supports asynchronous logging by using promises or callbacks in custom transports. Here’s an example using promises: