@cumulus/logger
Advanced tools
A logging library for use on the Cumulus project.
The @cumulus/logger library exports a Logger class, which generates
JSON-formated log events.
Log events always have the following keys:
Log events may have the following options keys:
Log events may also contain user-specified keys.
Example log event:
{
"level": "info",
"message": "hello world",
"sender": "greetingFunction",
"timestamp": "2018-10-19T19:12:47.501Z"
}
$ npm install @cumulus/logger
const Logger = require('@cumulus/logger');
const log = new Logger({ sender: 'example' });
log.info('hello, world');
Type: string
The sender of the log event. Typically a Lambda Function Name or ECS Task Name. Defaults to "unknown".
Type: string
An optional description of the executions.
Type: string
An optional version.
Writes a log event to stdout with level set to "debug".
Type: ...any
See console.log().
Writes a log event to stderr with level set to "error".
Type: ...any
See console.log().
Type: Error
If the last argument is an Error then the following additional properties will be set on the log event:
Writes a log event to stdout with level set to "fatal".
Type: ...any
See console.log().
Writes a log event to stdout with level set to "info".
Type: ...any
See console.log().
Writes a log event to stdout with level set to "info". In addition to the standard keys, additional keys will be added to the event. If an additional key is specified with the same name as a standard key, the value standard key will be displayed.
Type: Object
Additional key/value pairs to be added to the event.
Type: ...any
See console.log().
Writes a log event to stdout with level set to "trace".
Type: ...any
See console.log().
Writes a log event to stdout with level set to "debug".
Type: ...any
See console.log().
Cumulus is a cloud-based data ingest, archive, distribution and management prototype for NASA's future Earth science data streams.
See Cumulus README
[v1.13.2] - 2019-07-25
FAQs
A log library for use on Cumulus
The npm package @cumulus/logger receives a total of 167 weekly downloads. As such, @cumulus/logger popularity was classified as not popular.
We found that @cumulus/logger demonstrated a healthy version release cadence and project activity because the last version was released less than a year ago. It has 0 open source maintainers collaborating on the project.
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