Code Explainers

Code explainers tagged #context-propagation

import { AsyncLocalStorage } from 'node:async_hooks';
import { randomUUID } from 'node:crypto';
import { Injectable, NestMiddleware } from '@nestjs/common';
import { Request, Response, NextFunction } from 'express';

Request correlation IDs in NestJS with AsyncLocalStorage

async-local-storage middleware logging

Advanced 8 steps

typescript

import { Injectable, Scope, Inject } from '@nestjs/common';
import { REQUEST } from '@nestjs/core';
import { Request } from 'express';

Request-scoped context service in NestJS

dependency-injection request-scope immutability

Intermediate 8 steps