codesnips
typescript 
import { AsyncLocalStorage } from 'node:async_hooks';

interface Store {
  requestId: string;
}

Propagate a Request ID Through NestJS Logs with AsyncLocalStorage

nestjs logging middleware
by codesnips 4 tabs
java 
public record User(Long id, String email, String displayName, boolean active) {

    public static User of(String email, String displayName) {
        return new User(null, email, displayName, true);
    }

Efficient JDBC Batch Inserts With addBatch, executeBatch, and Generated Keys

jdbc batch-insert postgres
by codesnips 3 tabs
java 
@RestController
@RequestMapping("/api/transactions")
public class TransactionExportController {

    private final CsvExportService exportService;

Stream a Large CSV Export to the HTTP Response with StreamingResponseBody in Spring Boot

spring-boot streaming csv
by codesnips 3 tabs
typescript 
export interface UseClipboardResult {
  copied: boolean;
  error: Error | null;
  copy: (value: string) => Promise<boolean>;
}

Copy-to-Clipboard Button With a useClipboard Hook and Timed Success Feedback

react hooks clipboard
by codesnips 3 tabs
javascript 
function parseRange(header, size) {
  if (!header || !header.startsWith('bytes=')) return null;

  const [rawStart, rawEnd] = header.replace('bytes=', '').split('-');
  let start;
  let end;

HTTP Range Requests for Video Streaming in Node.js With fs.createReadStream

nodejs http streaming
by codesnips 3 tabs
python 
from __future__ import annotations

from dataclasses import dataclass, field
from datetime import datetime
from typing import Any, Dict, List

Parsing a Nested JSON Feed into Normalized Dataclasses in Python

dataclasses json parsing
by codesnips 3 tabs
python 
from datetime import datetime

from pydantic import BaseModel


class UserV1(BaseModel):

Versioning a FastAPI API With APIRouter Mounted Under /v1 and /v2 Prefixes

fastapi api-versioning apirouter
by codesnips 4 tabs
python 
from django.conf import settings
from django.contrib.contenttypes.fields import GenericForeignKey
from django.contrib.contenttypes.models import ContentType
from django.db import models, transaction

from .middleware import get_current_user

Auditing Django Model Field Changes in an Overridden save() Method

django audit-log orm
by codesnips 3 tabs
javascript 
const express = require('express');
const controller = require('../controllers/userController');

const router = express.Router();

router.use((req, res, next) => {

Versioning an Express API with Router-per-Version Mounts and a Shared Controller Module

express api-versioning rest
by codesnips 4 tabs
ruby 
module Result
  def self.Success(value)
    Success.new(value)
  end

  def self.Failure(error)

Railway-Oriented Result Monad for Chaining Lead Enrichment Steps in Ruby

result-monad railway-oriented functional
by codesnips 3 tabs
javascript 
const { z } = require('zod');

const signupSchema = z
  .object({
    email: z
      .string()

Reusable Zod Schema Validation Middleware for Express Signup Routes

express zod validation
by codesnips 3 tabs
rust 
use anyhow::{anyhow, Result};
use chrono::{DateTime, Utc};
use cron::Schedule as CronSchedule;
use std::str::FromStr;

pub struct Schedule {

Parse Cron Expressions and Run Due Recurring Jobs in Rust with Tokio

rust tokio cron
by codesnips 3 tabs