codesnips

dto

java 
package com.example.api.error;

import com.fasterxml.jackson.annotation.JsonInclude;

import java.time.Instant;
import java.util.List;

Structured Error Responses with @RestControllerAdvice in Spring Boot

spring-boot rest-api exception-handling
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php 
<?php

namespace App\Models;

use Illuminate\Database\Eloquent\Model;

Apply and Validate Coupon Codes with a Cart Totals Service in Laravel

laravel eloquent service-layer
by codesnips 4 tabs
java 
package com.example.catalog.web;

import com.example.catalog.domain.Product;
import java.math.BigDecimal;

public record ProductResponse(

Paginated Product Search Endpoint with Spring Data JPA Specifications

spring-boot spring-data-jpa pagination
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php 
<?php

namespace App\Validator;

use Symfony\Component\Validator\Constraint;

Validate a Symfony Signup DTO With a Custom Constraint and Validator

symfony validation dto
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rust 
#[derive(Debug, Clone, PartialEq, Eq)]
pub struct EmailAddress(String);

impl EmailAddress {
    pub fn parse(raw: &str) -> Result<Self, String> {
        if raw.contains('@') && !raw.starts_with('@') {

Bidirectional From Conversions Between Domain and API DTO Types in Rust

rust serde dto
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typescript 
import { NestFactory } from '@nestjs/core';
import { ValidationPipe } from '@nestjs/common';
import { AppModule } from './app.module';

async function bootstrap() {
  const app = await NestFactory.create(AppModule);

Global ValidationPipe with class-validator DTOs and Transform in NestJS

nestjs validation dto
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