java
package com.example.demo.interceptor;

import io.github.bucket4j.Bandwidth;
import io.github.bucket4j.Bucket;
import io.github.bucket4j.Refill;
import jakarta.servlet.http.HttpServletRequest;

Rate limiting and API throttling

java rate-limiting bucket4j
by David Kumar 3 tabs
java
package com.example.demo.controller;

import com.example.demo.dto.FileMetadata;
import com.example.demo.service.FileStorageService;
import org.springframework.core.io.Resource;
import org.springframework.http.HttpHeaders;

File upload and download handling

java spring-boot file-upload
by David Kumar 2 tabs
java
package com.example.demo.controller;

import com.example.demo.dto.PageResponse;
import com.example.demo.dto.UserDTO;
import com.example.demo.model.User;
import com.example.demo.service.UserService;

Pagination and sorting with Spring Data

java spring-data pagination
by David Kumar 2 tabs
java
package com.example.demo.controller;

import com.example.demo.model.User;
import com.example.demo.service.ReactiveUserService;
import org.springframework.http.HttpStatus;
import org.springframework.http.MediaType;

Reactive programming with WebFlux

java spring-webflux reactive
by David Kumar 2 tabs
java
package com.example.demo.service;

import io.micrometer.core.instrument.Counter;
import io.micrometer.core.instrument.MeterRegistry;
import io.micrometer.core.instrument.Timer;
import org.springframework.stereotype.Service;

Actuator for production monitoring

java spring-boot actuator
by David Kumar 4 tabs
dockerfile
# Build stage
FROM maven:3.9-eclipse-temurin-21 AS build
WORKDIR /app

# Copy dependency definitions
COPY pom.xml .

Docker containerization for Spring Boot

java docker spring-boot
by David Kumar 3 tabs
xml
<?xml version="1.0" encoding="UTF-8"?>
<configuration>
    <springProperty scope="context" name="APP_NAME" source="spring.application.name"/>

    <appender name="CONSOLE" class="ch.qos.logback.core.ConsoleAppender">
        <encoder>

Logging with SLF4J and Logback

java logging slf4j
by David Kumar 2 tabs
java
package com.example.demo.config;

import org.apache.kafka.clients.consumer.ConsumerConfig;
import org.apache.kafka.clients.producer.ProducerConfig;
import org.apache.kafka.common.serialization.StringDeserializer;
import org.apache.kafka.common.serialization.StringSerializer;

Messaging with Apache Kafka

java kafka messaging
by David Kumar 3 tabs
java
package com.example.demo.scheduled;

import com.example.demo.service.UserService;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.scheduling.annotation.Scheduled;

Scheduled tasks with @Scheduled

java spring-boot scheduling
by David Kumar 2 tabs
java
package com.example.demo.dto;

import com.example.demo.validation.UniqueEmail;
import jakarta.validation.constraints.*;
import lombok.Data;

Validation with Bean Validation API

java validation bean-validation
by David Kumar 3 tabs
java
package com.example.demo.mapper;

import com.example.demo.dto.UserDTO;
import com.example.demo.model.User;
import org.mapstruct.*;

MapStruct for object mapping

java mapstruct dto
by David Kumar 3 tabs
java
package com.example.demo.config;

import com.github.benmanes.caffeine.cache.Caffeine;
import org.springframework.cache.CacheManager;
import org.springframework.cache.annotation.EnableCaching;
import org.springframework.cache.caffeine.CaffeineCacheManager;

Caching strategies with Spring Cache

java spring-boot caching
by David Kumar 2 tabs