asynclocalstorage

const { AsyncLocalStorage } = require('async_hooks');

const storage = new AsyncLocalStorage();

function runWithTenant(tenantId, userId, callback) {
  return storage.run({ tenantId, userId }, callback);

Per-Tenant Request Context in Express With AsyncLocalStorage and a Scoped Repository

express multi-tenancy middleware

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typescript

import { AsyncLocalStorage } from 'node:async_hooks';

interface Store {
  requestId: string;
}

Propagate a Request ID Through NestJS Logs with AsyncLocalStorage

nestjs logging middleware

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