codesnips

dependency-injection

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
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
java 
package com.example.signup.validation;

import jakarta.validation.Constraint;
import jakarta.validation.Payload;
import java.lang.annotation.Documented;
import java.lang.annotation.Retention;

Custom @UniqueEmail Bean Validation Constraint in Spring Boot Signup

spring-boot bean-validation jsr380
by codesnips 4 tabs
rust 
use std::fmt;

#[derive(Debug)]
pub enum HashError {
    Backend(String),
    InvalidHash,

Pluggable Password Hasher Trait in Rust with Argon2 and Bcrypt Backends

rust argon2 bcrypt
by codesnips 3 tabs
python 
import sqlite3

import click
from flask import current_app, g

Request-Scoped Database Connections in Flask Using g and teardown_appcontext

flask sqlite connection-pooling
by codesnips 4 tabs
typescript 
import { NestFactory } from '@nestjs/core';
import { AppModule } from './app.module';

async function bootstrap() {
  // rawBody: true preserves the exact bytes Stripe signed
  const app = await NestFactory.create(AppModule, { rawBody: true });

Verify Stripe Webhook Signatures in a NestJS Guard Before the Handler

nestjs webhooks stripe
by codesnips 4 tabs
typescript 
import { Injectable, Scope } from '@nestjs/common';
import { DataSource, EntityManager, QueryRunner } from 'typeorm';

@Injectable({ scope: Scope.REQUEST })
export class TransactionContext {
  private queryRunner?: QueryRunner;

Request-Scoped TypeORM QueryRunner Provider for Transactional Writes in NestJS

nestjs typeorm transactions
by codesnips 3 tabs
typescript 
import { SetMetadata } from '@nestjs/common';

export enum Role {
  User = 'user',
  Editor = 'editor',
  Admin = 'admin',

Role-Based Access Control in NestJS with a Custom Guard and @Roles Decorator

nestjs authorization rbac
by codesnips 3 tabs
php 
<?php

namespace App\Controller;

use App\Entity\Tenant;
use App\Repository\InvoiceRepository;

Resolve the Current Tenant from the Request Host with a Symfony Argument Resolver

symfony multi-tenancy value-resolver
by codesnips 4 tabs
php 
<?php

namespace App\Payment;

use Symfony\Component\DependencyInjection\Attribute\AutoconfigureTag;

Collect Tagged Payment Gateways with a Symfony Compiler Pass and Service Locator

symfony dependency-injection compiler-pass
by codesnips 4 tabs
typescript 
import { Injectable, signal, computed } from '@angular/core';

export interface CurrentUser {
  id: string;
  email: string;
  roles: string[];

Guarding a Lazy-Loaded Angular Admin Route with a Functional CanActivate Role Check

angular routing lazy-loading
by codesnips 3 tabs
python 
from werkzeug.routing import BaseConverter
from werkzeug.exceptions import NotFound
from flask import abort


class ModelConverter(BaseConverter):

Auto-Loading SQLAlchemy Models in Flask Routes With a Custom URL Converter

flask werkzeug sqlalchemy
by codesnips 3 tabs