codesnips
javascript 
const withTimeout = (promise, timeoutMs, name) => {
  let timer;
  const timeout = new Promise((_, reject) => {
    timer = setTimeout(
      () => reject(new Error(`check '${name}' timed out after ${timeoutMs}ms`)),
      timeoutMs

Express Health-Check Router With a Pluggable Dependency Checks Registry

express health-check observability
by codesnips 3 tabs
java 
import jakarta.persistence.Column;
import jakarta.persistence.MappedSuperclass;
import java.time.Instant;

@MappedSuperclass
public abstract class SoftDeletable {

Soft-Delete JPA Entities with Hibernate @Where and a Restore-Capable Repository

spring spring-data hibernate
by codesnips 4 tabs
java 
@Configuration
public class TxConfig {

    @Bean
    public PlatformTransactionManager transactionManager(DataSource dataSource) {
        DataSourceTransactionManager tm = new DataSourceTransactionManager(dataSource);

Multi-Step Order Flow With Spring TransactionTemplate and Savepoint Rollback

spring-boot transactions transactiontemplate
by codesnips 3 tabs
python 
import time
from collections import namedtuple

from sqlalchemy import text

CheckResult = namedtuple("CheckResult", ["name", "healthy", "latency_ms", "detail"])

Flask Health-Check Blueprint Reporting Database and Redis Status as JSON

flask health-check observability
by codesnips 3 tabs
python 
import logging
import re

_BASE_FIELDS = set(logging.makeLogRecord({}).__dict__.keys())

_PATTERNS = [

Redacting Sensitive Fields in Structured Python Logs with a logging.Filter

logging security redaction
by codesnips 3 tabs
javascript 
import React, { createContext, useCallback, useMemo, useRef, useState } from 'react';
import { ToastViewport } from './ToastViewport';

export const ToastContext = createContext(undefined);

let counter = 0;

Build a React Toast Notification System with Context Provider, Hook, and Portal

react toast context-api
by codesnips 4 tabs
ruby 
require 'sinatra/base'
require_relative 'cart'
require_relative 'cart_helpers'

class StoreApp < Sinatra::Base
  enable :sessions

Session-Backed Shopping Cart with Sinatra Helpers and a Cart Value Object

sinatra sessions shopping-cart
by codesnips 3 tabs
python 
from decimal import Decimal

from django.db import models
from django.db.models import F, ExpressionWrapper, DecimalField

Annotate Invoice Line Totals in a Django ListView Queryset

django orm queryset
by codesnips 3 tabs
go 
package httpcache

import (
	"strconv"
	"strings"
	"time"

Parsing Cache-Control max-age for a TTL In-Memory Cache in Go

go caching http
by codesnips 3 tabs
go 
package api

import (
	"encoding/json"
	"encoding/xml"
	"net/http"

Content-Negotiating HTTP Handler for JSON and XML in Go

go http content-negotiation
by codesnips 2 tabs
go 
package feed

import "time"

type Post struct {
	ID        int64

Batch-Load Related Rows with a Single IN Query to Avoid N+1

go sql postgres
by codesnips 3 tabs
javascript 
class ApiError extends Error {
  constructor(statusCode, message, code) {
    super(message);
    this.name = 'ApiError';
    this.statusCode = statusCode;
    this.code = code || null;

Centralized Async Error Handling in Express With asyncHandler and Error Middleware

express nodejs error-handling
by codesnips 4 tabs