@lahaus-nuxt/winston-logs

Welcome to @lahaus-nuxt/winston-logs 👋

Nuxt module to add winston/logging to your application by capturing requests passing through the server-middleware using the http module in nodejs. This module is only compatible with nuxtjs version 2.

🏠 Homepage

Installation

1. Install npm package

yarn add @lahaus-nuxt/winston-logs # or npm i @lahaus-nuxt/winston-logs

2. Install winston

yarn add winston # or  npm i winston

3. Edit your nuxt.config.js file to add module

{
  modules: ['@lahaus-nuxt/winston-logs'];
}

4. Change the options using the winstonLogConfig key or by adding a second parameter in the module configuration. Refer to the Usage section for details.

Usage

1. By default, @lahaus-nuxt/winston-logs exposes some basic options for common needs. Internally, these options are used to create a basic winston logger instance and wire up middleware.

   The default values are:

   // ...
   {
     // Active error request middleware handler.
     addErrorMiddleware: true,
     // Active error request middleware handler.
     addRequestMiddleware: true
     // activate the module
     enabled: true,
     // Set the logger options.
     loggerOptions: {
       level: 'info',
       exitOnError: false,
       format: combine(timestamp(), errors({ stack: true }), json()),
       transports: [new transports.Console()],
     },
     ...yourOverrides
   }
   // ...

With options module

{
  modules: ['@lahaus-nuxt/winston-logs', { enabled: true }];
}

With winstonLogConfig key

{
  modules: ['@lahaus-nuxt/winston-logs'],
  winstonLogConfig: {
    enabled: true
  }
}

2. To access the winston instance from within Nuxt lifecycle areas, use the $winstonLog key from the Nuxt context object. Note: This is only available for server-side executions. For example, because asyncData is an isomorphic function in Nuxt, you will need to guard $winstonLog access with something like if (process.server) { ... }

Example nuxtServerInit in your apps ~/store/index.js:

// ...
export const actions = {
  async nuxtServerInit({ store, commit }, { req, $ddTrace }) {
    $winstonLog.info({ message: 'hello word' });
  },
};
// ...

Example asyncData in your apps ~/pages/somepage.vue:

    // ...
    asyncData(context) {
      if (process.server) {
        context.$winstonLog.info({ message: 'hello word' });
      }
    }
    // ...

For more information on winston options, see the package documentation.

Using process.winstonLog in a Nuxt Module

Because modules are executed sequentially, any additional Nuxt modules should be loaded after the @lahaus-nuxt/winston-logs module. You can then access the winston logger instance via process.winstonLog as needed.

Important

The datadog-trace module uses interceptors to trace network requests and database operations in the application. By adding the winston-logs module after datadog-trace, you ensure that additional logs are enriched with information traced by datadog, such as the service name, environment, and version.

If you add the Winston module before datadog-trace, it is possible that the additional logs will not be enriched with the information traced by datadog. This can make it difficult to diagnose problems in the application and limit the effectiveness of the logs. For example:

✅ Correct

modules: ['@lahaus-nuxt/datadog-trace', '@lahaus-nuxt/winston-logs'];

❌ Incorrect

modules: ['@lahaus-nuxt/winston-logs', '@lahaus-nuxt/datadog-trace'];

Author

👤 Alver Alexander Grisales Ortega [e-mail]

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