codesnips

dependency-injection

kotlin 
package com.example.myapp

import android.app.Application
import dagger.hilt.android.HiltAndroidApp

@HiltAndroidApp

Dependency injection with Hilt

kotlin android hilt
by Alex Chen 3 tabs
php 
<?php

namespace App\Providers;

use App\Contracts\PaymentGateway;
use App\Services\StripePaymentGateway;

Laravel service container and dependency injection

laravel dependency-injection service-container
by Carlos Mendez 2 tabs
typescript 
import { ApplicationConfig } from '@angular/core';
import {
  provideHttpClient,
  withInterceptors,
} from '@angular/common/http';
import { retryInterceptor } from './retry.interceptor';

Angular HttpInterceptor With Exponential Backoff and Jittered Retries

angular http-interceptor rxjs
by codesnips 3 tabs
python 
from typing import Literal, Tuple, Type

from pydantic import BaseModel, PostgresDsn, RedisDsn
from pydantic_settings import (
    BaseSettings,
    PydanticBaseSettingsSource,

Layered Pydantic Settings: Env Vars Over a YAML Defaults File

pydantic configuration settings
by codesnips 4 tabs
python 
from typing import Optional
from pydantic import BaseModel, EmailStr, Field, field_validator, model_validator


class CreateUserRequest(BaseModel):
    model_config = {"extra": "forbid"}

Validating JSON Payloads with Pydantic v2 and Returning Field-Level Errors in FastAPI

fastapi pydantic validation
by codesnips 3 tabs
python 
import asyncio
import time
from dataclasses import dataclass, field


@dataclass

Per-Client Rate Limiting in FastAPI with a Token Bucket Dependency

python fastapi rate-limiting
by codesnips 3 tabs
java 
package com.example.users.domain;

import jakarta.persistence.Column;
import jakarta.persistence.Entity;
import jakarta.persistence.GeneratedValue;
import jakarta.persistence.GenerationType;

Mapping JPA Entities to DTOs with a MapStruct Mapper Injected into a Spring Service

spring-boot mapstruct dto
by codesnips 4 tabs
typescript 
import { Injectable } from '@nestjs/common';
import { HealthIndicator, HealthIndicatorResult, HealthCheckError } from '@nestjs/terminus';
import { PrismaService } from '../prisma/prisma.service';

@Injectable()
export class PrismaHealthIndicator extends HealthIndicator {

NestJS Health Checks With Terminus and a Custom Prisma Indicator

nestjs terminus health-checks
by codesnips 3 tabs
typescript 
import { Injectable, computed, signal } from '@angular/core';

@Injectable({ providedIn: 'root' })
export class LoadingService {
  private readonly activeRequests = signal(0);

Global Loading Spinner via In-Flight Request Tracking in an Angular HttpInterceptor

angular http-interceptor rxjs
by codesnips 4 tabs
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