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Production Setup ​

Problem ​

Implement production setup in a production-friendly way with @vielzeug/logit while keeping setup and cleanup explicit.

Runnable Example ​

The snippet below is copy-paste runnable in a TypeScript project with @vielzeug/logit installed.

ts
import { Logit } from '@vielzeug/logit';

const isProd = typeof process !== 'undefined' && process.env?.NODE_ENV === 'production';

Logit.setConfig({
  environment: true,
  logLevel: isProd ? 'warn' : 'debug',
  timestamp: true,
  variant: 'symbol',
  remote: isProd
    ? {
        logLevel: 'error',
        handler: async (type, data) => {
          await fetch('/api/logs', {
            body: JSON.stringify({ level: type, ...data }),
            method: 'POST',
          });
        },
      }
    : {},
});

Expected Output ​

  • The example runs without type errors in a standard TypeScript setup.
  • The main flow produces the behavior described in the recipe title.

Common Pitfalls ​

  • Forgetting cleanup/dispose calls can leak listeners or stale state.
  • Skipping explicit typing can hide integration issues until runtime.
  • Not handling error branches makes examples harder to adapt safely.