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Class DvelopLogger

General Logger class. This class does not log itself, but is a wrapper that wraps logging providers. Each logging provider can decide how and where it logs a log statement.

If you create a new instance, you have to define at least one ProviderFn in the options.

This package delivers an otelProviderFactory function, to create a logging provider that logs a log statement in the otel log format.

example
const logger = new DvelopLogger({
level: "info",// logs info and above
providers: [
  // Providers define a loggin scheme. Currently only OTEL is supported.
  otelProviderFactory({

     appName: "acme-myapp",
     appVersion: "1.0.0",
     instanceId: "0",

     // Transports define where to send the logs. Mutliple transports can be used.
     transports: [
       consoleTransportFactory(), // logs to console
       fileTransportFactory("./logs.txt") // logs to file 'logs.txt'
     ]
   })
 ],
});

logger.debug({}, "Hello World!");

logger.error({
  systemBaseUri: "https://sparta.d-velop.cloud",
  tenantId: "T8r3cWM4JII"
}, {
  name: "MissionFailedLogger",
  message: "Apperently this is Sparta",
  error: error,
  customAttributes: {
    learnings: "Don't stand near a well"
  }
});

Hierarchy

  • DvelopLogger

Index

Constructors

Properties

Methods

Constructors

constructor

Properties

Private mergeLogEvents

mergeLogEvents: (...events: Partial<DvelopLogEvent>[]) => DvelopLogEvent

Type declaration

options

options: DvelopLoggerOptions

Methods

debug

  • debug(context: DvelopContext, message: string): void
  • debug(context: DvelopContext, event: DvelopLogEvent): void

error

  • error(context: DvelopContext, message: string): void
  • error(context: DvelopContext, event: DvelopLogEvent): void

info

  • info(context: DvelopContext, message: string): void
  • info(context: DvelopContext, event: DvelopLogEvent): void

Private log

  • log(context: DvelopContext, event: DvelopLogEvent, level: DvelopLogLevel): void

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