#spring boot microservice example

[codeonedigest]

Rest API Vs Graphql Tutorial with Example for Microservice Developers

Full Video Link - https://youtube.com/shorts/nFoO6xbEi4U Hi, a new #video on difference between #graphql & #restfulapi #restapi for #microservice #api #developers is published on #codeonedigest #youtube channel. @java #java #awscloud @awscloud

The core difference between GraphQL and REST APIs is that GraphQL is a specification, a query language, while REST is an architectural concept for network-based software. GraphQL is great for being strongly typed, and self-documenting based on schema types and descriptions and integrates with code generator tools to reduce development time. A REST API is an “architectural concept” for…

[freshyblog07]

Top Spring Boot Interview Questions and Answers (2025 Edition)

Spring Boot has become the standard for building production-ready Java applications with minimal configuration. If you're preparing for a backend or full-stack developer role, having a good grip on common Spring Boot interview questions is a must.

In this post, we’ll walk you through the most frequently asked Spring Boot questions to help you ace your next interview.

📘 Want a complete list with detailed answers and code examples? 👉 Read the full guide here: Spring Boot Interview Questions – Freshy Blog

🔹 What is Spring Boot?

Spring Boot is an extension of the Spring framework that simplifies the development of Java-based applications by providing auto-configuration, embedded servers, and production-ready defaults.

🔸 Common Spring Boot Interview Questions

1. What are the main features of Spring Boot?

Auto Configuration

Starter Dependencies

Spring Boot CLI

Actuator

Embedded Web Servers (Tomcat, Jetty)

2. What is the difference between Spring and Spring Boot?

Spring Boot is a rapid application development framework built on top of Spring. It eliminates boilerplate configuration and helps developers get started quickly.

🔸 Intermediate Spring Boot Questions

3. What are Starter dependencies?

Starter dependencies are a set of convenient dependency descriptors that you can include in your application. For example:

<dependency>

  <groupId>org.springframework.boot</groupId>

  <artifactId>spring-boot-starter-web</artifactId>

</dependency>

4. What is Spring Boot Actuator?

Spring Boot Actuator provides production-ready features like monitoring, metrics, and health checks of your application.

🔹 Advanced Spring Boot Questions

5. How does auto-configuration work in Spring Boot?

Spring Boot automatically configures your application based on the dependencies you have in your classpath using @EnableAutoConfiguration.

6. How can you secure a Spring Boot application?

You can use spring-boot-starter-security and configure it with annotations like @EnableWebSecurity, along with custom authentication and authorization logic.

🔍 More Questions Covered in the Full Guide:

What are Profiles in Spring Boot?

What is the role of application.properties or application.yml?

How to implement exception handling in Spring Boot?

How to integrate Spring Boot with databases like MySQL, PostgreSQL?

👉 Get full coverage with examples, tips, and best practices: 🔗 https://www.freshyblog.com/spring-boot-interview-questions/

✅ Quick Tips for Spring Boot Interviews

Understand how dependency injection works

Be familiar with REST API development in Spring Boot

Practice building microservices

Explore Spring Security basics

Review annotations like @RestController, @Service, @Component, and @Repository

Final Thoughts

Mastering these Spring Boot interview questions can give you a solid edge in any technical interview. As Java continues to be a dominant backend language, Spring Boot remains a vital tool in the modern developer’s toolkit.

📘 Want to dive deeper? 👉 Visit the full interview question guide here: Spring Boot Interview Questions – Freshy Blog

[codingbrushup]

7 Advantages of Joining a Full Stack Developer Coding Brushup

In today’s dynamic tech industry, staying updated with the latest tools, frameworks, and best practices is not optional—it’s essential. For professionals aiming to solidify their expertise or refresh their knowledge, a coding brushup for Java full stack developer roles can be the perfect stepping stone. Whether you're returning to development after a break or preparing for a job interview, a full stack developer coding brushup bootcamp offers structured, high-impact training to help you reach your goals faster.

Below, we explore the top 7 advantages of joining such a bootcamp, especially if you're targeting a career as a Java full stack developer.

1. Focused Review of Core Concepts

A coding brushup for Java full stack developer roles focuses on reinforcing essential front-end and back-end concepts in a streamlined way. Instead of sifting through hundreds of tutorials or outdated resources, you’ll get structured learning that covers:

Java programming fundamentals

Spring and Spring Boot frameworks

RESTful APIs

Front-end technologies like HTML, CSS, JavaScript, React or Angular

Database operations with MySQL or MongoDB

This focused review ensures that you don’t just remember syntax, but also understand how to structure scalable, efficient code across the entire stack—front end to back end.

2. Bridging Skill Gaps Quickly

Even experienced developers can develop knowledge gaps due to changing technologies. A full stack developer course designed as a brushup bootcamp can bridge these gaps in weeks, not months.

Java evolves regularly, and frameworks like Spring Boot are consistently updated. Attending a coding brushup for Java full stack developers ensures you're up to date with the latest industry standards and practices.

Plus, the bootcamp model ensures that you’re learning by doing, reinforcing both theoretical and practical skills in real time.

3. Preparation for Job Interviews and Assessments

Hiring processes in tech are rigorous. Most companies looking for a Java full stack developer will test your technical aptitude through:

Coding challenges

Technical interviews

System design tests

A full stack developer coding brushup bootcamp typically includes mock interviews, live coding sessions, and problem-solving exercises tailored to real-world job assessments. You’ll gain the confidence and experience needed to crack interviews at top companies.

4. Hands-On Project Experience

Theory without practice is incomplete—especially in full stack development. The best full stack developer course bootcamps emphasize building hands-on projects that showcase your capabilities. You might build:

A CRUD application using Spring Boot and React

An e-commerce site with user authentication

REST APIs with integrated front-end components

These practical projects not only reinforce your learning but also become strong additions to your professional portfolio—an essential asset when applying for Java full stack developer roles.

5. Expert Mentorship and Peer Learning

Bootcamps are not just about what you learn, but also who you learn from. Most full stack developer bootcamp programs are taught by experienced professionals with years in the industry. Their guidance ensures that you're not just reading documentation but understanding how to apply it in real-world business scenarios.

In addition, you’ll be part of a cohort of like-minded peers. This community-driven learning environment fosters collaboration, idea exchange, and peer-to-peer feedback—critical for personal and professional growth in software development.

6. Updated Curriculum Based on Industry Trends

Unlike static college curriculums or outdated YouTube playlists, a coding brushup for Java full stack developer roles is regularly updated to reflect real industry demands. You’ll get hands-on experience with tools and frameworks currently used by top employers.

For example:

Working with Spring Boot for microservices

Integrating frontend frameworks like React with Java backends

Using Git, Docker, and CI/CD pipelines

An updated curriculum ensures that when you complete the full stack developer course, your skills are relevant and market-ready.

7. Boosted Confidence and Career Clarity

Sometimes, the biggest obstacle is not lack of knowledge but lack of confidence. A coding brushup for Java full stack developer roles can help reignite your passion for coding, clear doubts, and provide clarity on your career direction.

Whether you’re preparing for a switch, returning to development after a break, or aiming for a promotion, a brushup bootcamp equips you with the confidence and clarity to move forward decisively.

Additionally, many bootcamps offer career services like:

Resume reviews

LinkedIn optimization

Job placement assistance

This complete package ensures that your transition from learning to earning is as smooth as possible.

Final Thoughts

A full stack developer coding brushup bootcamp is more than a crash course—it's a career investment. For aspiring or working professionals looking to refresh their Java skills or upskill for the latest technologies, it offers the perfect blend of theoretical depth, hands-on practice, and career guidance.

With a targeted coding brushup for Java full stack developers, you can fast-track your learning, build an impressive project portfolio, and confidently pursue your next opportunity in the ever-growing tech industry.

Whether you're aiming to enroll in a full stack developer course or simply want to keep your skills sharp, consider a coding brushup bootcamp as your next smart move.

Are you ready to reboot your developer journey? Explore coding brushup programs tailored for Java full stack developers and make the leap today.

[sathcreation]

Full Stack Web Development Coaching at Gritty Tech

Master Full Stack Development with Gritty Tech

If you're looking to build a high-demand career in web development, Gritty Tech's Full Stack Web Development Coaching is the ultimate solution. Designed for beginners, intermediates, and even experienced coders wanting to upskill, our program offers intensive, hands-on training. You will master both front-end and back-end development, preparing you to create complete web applications from scratch For More…

At Gritty Tech, we believe in practical learning. That means you'll not only absorb theory but also work on real-world projects, collaborate in teams, and build a strong portfolio that impresses employers.

Why Choose Gritty Tech for Full Stack Coaching?

Gritty Tech stands out because of our commitment to excellence, personalized mentorship, and career-oriented approach. Here's why you should choose us:

Expert Instructors: Our trainers are seasoned professionals from leading tech companies.

Project-Based Learning: You build real applications, not just toy examples.

Career Support: Resume workshops, interview preparation, and networking events.

Flexible Learning: Evening, weekend, and self-paced options are available.

Community: Join a vibrant community of developers and alumni.

What is Full Stack Web Development?

Full Stack Web Development refers to the creation of both the front-end (client-side) and back-end (server-side) portions of a web application. A full stack developer handles everything from designing user interfaces to managing servers and databases.

Front-End Development

Front-end development focuses on what users see and interact with. It involves technologies like:

HTML5 for structuring web content.

CSS3 for designing responsive and visually appealing layouts.

JavaScript for adding interactivity.

Frameworks like React, Angular, and Vue.js for building scalable web applications.

Back-End Development

Back-end development deals with the server-side, databases, and application logic. Key technologies include:

Node.js, Python (Django/Flask), Ruby on Rails, or Java (Spring Boot) for server-side programming.

Databases like MySQL, MongoDB, and PostgreSQL to store and retrieve data.

RESTful APIs and GraphQL for communication between client and server.

Full Stack Tools and DevOps

Version Control: Git and GitHub.

Deployment: AWS, Heroku, Netlify.

Containers: Docker.

CI/CD Pipelines: Jenkins, GitLab CI.

Gritty Tech Full Stack Coaching Curriculum

Our curriculum is carefully crafted to cover everything a full stack developer needs to know:

1. Introduction to Web Development

Understanding the internet and how web applications work.

Setting up your development environment.

Introduction to Git and GitHub.

2. Front-End Development Mastery

HTML & Semantic HTML: Best practices for accessibility.

CSS & Responsive Design: Media queries, Flexbox, Grid.

JavaScript Fundamentals: Variables, functions, objects, and DOM manipulation.

Modern JavaScript (ES6+): Arrow functions, promises, async/await.

Front-End Frameworks: Deep dive into React.js.

3. Back-End Development Essentials

Node.js & Express.js: Setting up a server, building APIs.

Database Management: CRUD operations with MongoDB.

Authentication & Authorization: JWT, OAuth.

API Integration: Consuming third-party APIs.

4. Advanced Topics

Microservices Architecture: Basics of building distributed systems.

GraphQL: Modern alternative to REST APIs.

Web Security: Preventing common vulnerabilities (XSS, CSRF, SQL Injection).

Performance Optimization: Caching, lazy loading, code splitting.

5. DevOps and Deployment

CI/CD Fundamentals: Automating deployments.

Cloud Services: Hosting apps on AWS, DigitalOcean.

Monitoring & Maintenance: Tools like New Relic and Datadog.

6. Soft Skills and Career Coaching

Resume writing for developers.

Building an impressive LinkedIn profile.

Preparing for technical interviews.

Negotiating job offers.

Real-World Projects You'll Build

At Gritty Tech, you won't just learn; you'll build. Here are some example projects:

E-commerce Website: A full stack shopping platform.

Social Media App: Create a mini version of Instagram.

Task Manager API: Backend API to handle user tasks with authentication.

Real-Time Chat Application: WebSocket-based chat system.

Each project is reviewed by mentors, and feedback is provided to ensure continuous improvement.

Personalized Mentorship and Live Sessions

Our coaching includes one-on-one mentorship to guide you through challenges. Weekly live sessions provide deeper dives into complex topics and allow real-time Q&A. Mentors assist with debugging, architectural decisions, and performance improvements.

Tools and Technologies You Will Master

Languages: HTML, CSS, JavaScript, Python, SQL.

Front-End Libraries/Frameworks: React, Bootstrap, TailwindCSS.

Back-End Technologies: Node.js, Express.js, MongoDB.

Version Control: Git, GitHub.

Deployment: Heroku, AWS, Vercel.

Other Tools: Postman, Figma (for UI design basics).

Student Success Stories

Thousands of students have successfully transitioned into tech roles through Gritty Tech. Some notable success stories:

Amit, from a sales job to Front-End Developer at a tech startup within 6 months.

Priya, a stay-at-home mom, built a portfolio and landed a full stack developer role.

Rahul, a mechanical engineer, became a software engineer at a Fortune 500 company.

Who Should Join This Coaching Program?

This coaching is ideal for:

Beginners with no coding experience.

Working professionals looking to switch careers.

Students wanting to learn industry-relevant skills.

Entrepreneurs building their tech startups.

If you are motivated to learn, dedicated to practice, and open to feedback, Gritty Tech is the right place for you.

Career Support at Gritty Tech

At Gritty Tech, our relationship doesn’t end when you finish the course. We help you land your first job through:

Mock interviews.

Technical assessments.

Building an impressive project portfolio.

Alumni referrals and job placement assistance.

Certifications

After completing the program, you will receive a Full Stack Web Developer Certification from Gritty Tech. This certification is highly respected in the tech industry and will boost your resume significantly.

Flexible Payment Plans

Gritty Tech offers affordable payment plans to make education accessible to everyone. Options include:

Monthly Installments.

Pay After Placement (Income Share Agreement).

Early Bird Discounts.

How to Enroll

Enrolling is easy! Visit Gritty Tech Website and sign up for the Full Stack Web Development Coaching program. Our admissions team will guide you through the next steps.

Frequently Asked Questions (FAQ)

How long does the Full Stack Web Development Coaching at Gritty Tech take?

The program typically spans 6 to 9 months depending on your chosen pace (full-time or part-time).

Do I need any prerequisites?

No prior coding experience is required. We start from the basics and gradually move to advanced topics.

What job roles can I apply for after completing the program?

You can apply for roles like:

Front-End Developer

Back-End Developer

Full Stack Developer

Web Application Developer

Software Engineer

Is there any placement guarantee?

While we don't offer "guaranteed placement," our career services team works tirelessly to help you land a job by providing job referrals, mock interviews, and resume building sessions.

Can I learn at my own pace?

Absolutely. We offer both live cohort-based batches and self-paced learning tracks.

Ready to kickstart your tech career? Join Gritty Tech's Full Stack Web Development Coaching today and transform your future. Visit grittytech.com to learn more and enroll!

[freshparadisepaper]

Software Engineer Resume Examples That Land 6-Figure Jobs

Introduction: Why Your Resume Is Your First Line of Code

When it comes to landing a 6-figure software engineering job, your resume isn’t just a document—it’s your personal algorithm for opportunity.

Recruiters spend an average of 6–8 seconds on an initial resume scan, meaning you have less time than a function call to make an impression. Whether you're a backend expert, front-end developer, or full-stack wizard, structuring your resume strategically can mean the difference between “Interview scheduled” and “Application rejected.”

This guide is packed with real-world engineering resume examples and data-backed strategies to help you craft a resume that breaks through the noise—and lands you the role (and salary) you deserve.

What Makes a Software Engineer Resume Worth 6 Figures?

Before diving into examples, let's outline the key ingredients that top-tier employers look for in high-paying engineering candidates:

Clear technical specialization (e.g., front-end, DevOps, cloud)

Strong project outcomes tied to business value

Demonstrated leadership or ownership

Modern, ATS-friendly formatting

Tailored content for the job role

According to LinkedIn’s 2024 Emerging Jobs Report, software engineers with cloud, AI/ML, and DevOps experience are the most in-demand, with average salaries exceeding $120,000 annually in the U.S.

Structuring the Perfect Software Engineer Resume

Here’s a proven framework used in many successful engineering resume examples that landed six-figure jobs:

1. Header and Contact Information

Keep it clean and professional. Include:

Full name

Email (professional)

GitHub/Portfolio/LinkedIn URL

Phone number

2. Professional Summary (3–4 Lines)

Use this space to summarize your experience, key technologies, and what makes you stand out.

Example: "Full-stack software engineer with 7+ years of experience building scalable web applications using React, Node.js, and AWS. Passionate about clean code, continuous delivery, and solving real-world business problems."

3. Technical Skills (Grouped by Category)

Format matters here—grouping helps recruiters scan quickly.

Languages: JavaScript, Python, Java

Frameworks: React, Django, Spring Boot

Tools/Platforms: Git, Docker, AWS, Kubernetes, Jenkins

Databases: MySQL, MongoDB, PostgreSQL

4. Experience (Show Impact, Not Just Tasks)

Use action verbs + quantifiable results + technologies used.

Example:

Designed and implemented a microservices architecture using Spring Boot and Docker, improving system uptime by 35%.

Migrated legacy systems to AWS, cutting infrastructure costs by 25%.

Led a team of 4 engineers to launch a mobile banking app that acquired 100,000+ users in 6 months.

5. Education

List your degree(s), university name, and graduation date. If you're a recent grad, include relevant coursework.

6. Projects (Optional but Powerful)

Projects are crucial for junior engineers or those transitioning into tech. Highlight the challenge, your role, the tech stack, and outcomes.

Real-World Engineering Resume Examples (For Inspiration)

Example 1: Backend Software Engineer Resume (Mid-Level)

Summary: Backend developer with 5+ years of experience in building RESTful APIs using Python and Django. Focused on scalable architecture and robust database design.

Experience:

Developed a REST API using Django and PostgreSQL, powering a SaaS platform with 10k+ daily users.

Implemented CI/CD pipelines with Jenkins and Docker, reducing deployment errors by 40%.

Skills: Python, Django, PostgreSQL, Git, Docker, Jenkins, AWS

Why It Works: It’s direct, results-focused, and highlights technical depth aligned with backend engineering roles.

Example 2: Front-End Engineer Resume (Senior Level)

Summary: Senior front-end developer with 8 years of experience crafting responsive and accessible web interfaces. Strong advocate of performance optimization and user-centered design.

Experience:

Led UI redevelopment of an e-commerce platform using React, increasing conversion rate by 22%.

Integrated Lighthouse audits to enhance Core Web Vitals, resulting in 90+ scores across all pages.

Skills: JavaScript, React, Redux, HTML5, CSS3, Webpack, Jest

Why It Works: Focuses on user experience, performance metrics, and modern front-end tools—exactly what senior roles demand.

Example 3: DevOps Engineer Resume (6-Figure Role)

Summary: AWS-certified DevOps engineer with 6 years of experience automating infrastructure and improving deployment pipelines for high-traffic platforms.

Experience:

Automated infrastructure provisioning using Terraform and Ansible, reducing setup time by 70%.

Optimized Kubernetes deployment workflows, enabling blue-green deployments across services.

Skills: AWS, Docker, Kubernetes, Terraform, CI/CD, GitHub Actions

Why It Works: It highlights automation, scalability, and cloud—all high-value skills for 6-figure DevOps roles.

ATS-Proofing Your Resume: Best Practices

Applicant Tracking Systems are a major hurdle—especially in tech. Here’s how to beat them:

Use standard headings like “Experience” or “Skills”

Avoid tables, columns, or excessive graphics

Use keywords from the job description naturally

Save your resume as a PDF unless instructed otherwise

Many successful candidates borrow formatting cues from high-performing engineering resume examples available on reputable sites like GitHub, Resume.io, and Zety.

Common Mistakes That Can Cost You the Job

Avoid these pitfalls if you’re targeting 6-figure roles:

Listing outdated or irrelevant tech (e.g., Flash, VBScript)

Using vague responsibilities like “worked on the website”

Failing to show impact or metrics

Forgetting to link your GitHub or portfolio

Submitting the same resume to every job

Each job should have a slightly tailored resume. The effort pays off.

Bonus Tips: Add a Competitive Edge

Certifications: AWS, Google Cloud, Kubernetes, or relevant coding bootcamps

Contributions to open source projects on GitHub

Personal projects with real-world use cases

Blog or technical writing that demonstrates thought leadership

Conclusion: Turn Your Resume Into a Career-Launching Tool

Crafting a winning software engineer resume isn’t just about listing skills—it’s about telling a compelling story of how you create value, solve problems, and ship scalable solutions.

The best engineering resume examples strike a perfect balance between clarity, credibility, and customization. Whether you're a bootcamp grad or a seasoned engineer, investing time into your resume is one of the highest ROI career moves you can make.

👉 Visit our website for professionally designed templates, expert tips, and more examples to help you land your dream role—faster.

[souhaillaghchimdev]

Microservices Programming

Microservices architecture is revolutionizing the way modern software is built. Instead of a single monolithic application, microservices break down functionality into small, independent services that communicate over a network. This approach brings flexibility, scalability, and easier maintenance. In this post, we’ll explore the core concepts of microservices and how to start programming with them.

What Are Microservices?

Microservices are a software development technique where an application is composed of loosely coupled, independently deployable services. Each service focuses on a specific business capability and communicates with others through lightweight APIs, usually over HTTP or messaging queues.

Why Use Microservices?

Scalability: Scale services independently based on load.

Flexibility: Use different languages or technologies for different services.

Faster Development: Small teams can build, test, and deploy services independently.

Resilience: Failure in one service doesn't crash the entire system.

Better Maintainability: Easier to manage, update, and test smaller codebases.

Key Components of Microservices Architecture

Services: Individual, self-contained units with specific functionality.

API Gateway: Central access point that routes requests to appropriate services.

Service Discovery: Automatically locates services within the system (e.g., Eureka, Consul).

Load Balancing: Distributes incoming traffic across instances (e.g., Nginx, HAProxy).

Containerization: Deploy services in isolated environments (e.g., Docker, Kubernetes).

Messaging Systems: Allow asynchronous communication (e.g., RabbitMQ, Apache Kafka).

Popular Tools and Frameworks

Spring Boot + Spring Cloud (Java): Full-stack support for microservices.

Express.js (Node.js): Lightweight framework for building RESTful services.

FastAPI (Python): High-performance framework ideal for microservices.

Docker: Container platform for packaging and running services.

Kubernetes: Orchestrates and manages containerized microservices.

Example: A Simple Microservices Architecture

User Service: Manages user registration and authentication.

Product Service: Handles product listings and inventory.

Order Service: Manages order placement and status.

Each service runs on its own server or container, communicates through REST APIs, and has its own database to avoid tight coupling.

Best Practices for Microservices Programming

Keep services small and focused on a single responsibility.

Use versioned APIs to ensure backward compatibility.

Centralize logging and monitoring using tools like ELK Stack or Prometheus + Grafana.

Secure your APIs using tokens (JWT, OAuth2).

Automate deployments and CI/CD pipelines with tools like Jenkins, GitHub Actions, or GitLab CI.

Avoid shared databases between services — use event-driven architecture for coordination.

Challenges in Microservices

Managing communication and data consistency across services.

Increased complexity in deployment and monitoring.

Ensuring security between service endpoints.

Conclusion

Microservices programming is a powerful approach to building modern, scalable applications. While it introduces architectural complexity, the benefits in flexibility, deployment, and team autonomy make it an ideal choice for many large-scale projects. With the right tools and design patterns, you can unlock the full potential of microservices for your applications.

[learning-code-ficusoft]

A Guide to Creating APIs for Web Applications

APIs (Application Programming Interfaces) are the backbone of modern web applications, enabling communication between frontend and backend systems, third-party services, and databases. In this guide, we’ll explore how to create APIs, best practices, and tools to use.

1. Understanding APIs in Web Applications

An API allows different software applications to communicate using defined rules. Web APIs specifically enable interaction between a client (frontend) and a server (backend) using protocols like REST, GraphQL, or gRPC.

Types of APIs

RESTful APIs — Uses HTTP methods (GET, POST, PUT, DELETE) to perform operations on resources.

GraphQL APIs — Allows clients to request only the data they need, reducing over-fetching.

gRPC APIs — Uses protocol buffers for high-performance communication, suitable for microservices.

2. Setting Up a REST API: Step-by-Step

Step 1: Choose a Framework

Node.js (Express.js) — Lightweight and popular for JavaScript applications.

Python (Flask/Django) — Flask is simple, while Django provides built-in features.

Java (Spring Boot) — Enterprise-level framework for Java-based APIs.

Step 2: Create a Basic API

Here’s an example of a simple REST API using Express.js (Node.js):javascriptconst express = require('express'); const app = express(); app.use(express.json());let users = [{ id: 1, name: "John Doe" }];app.get('/users', (req, res) => { res.json(users); });app.post('/users', (req, res) => { const user = { id: users.length + 1, name: req.body.name }; users.push(user); res.status(201).json(user); });app.listen(3000, () => console.log('API running on port 3000'));

Step 3: Connect to a Database

APIs often need a database to store and retrieve data. Popular databases include:

SQL Databases (PostgreSQL, MySQL) — Structured data storage.

NoSQL Databases (MongoDB, Firebase) — Unstructured or flexible data storage.

Example of integrating MongoDB using Mongoose in Node.js:javascriptconst mongoose = require('mongoose'); mongoose.connect('mongodb://localhost:27017/mydb', { useNewUrlParser: true, useUnifiedTopology: true });const UserSchema = new mongoose.Schema({ name: String }); const User = mongoose.model('User', UserSchema);app.post('/users', async (req, res) => { const user = new User({ name: req.body.name }); await user.save(); res.status(201).json(user); });

3. Best Practices for API Development

🔹 Use Proper HTTP Methods:

GET – Retrieve data

POST – Create new data

PUT/PATCH – Update existing data

DELETE – Remove data

🔹 Implement Authentication & Authorization

Use JWT (JSON Web Token) or OAuth for securing APIs.

Example of JWT authentication in Express.js:

javascript

const jwt = require('jsonwebtoken'); const token = jwt.sign({ userId: 1 }, 'secretKey', { expiresIn: '1h' });

🔹 Handle Errors Gracefully

Return appropriate status codes (400 for bad requests, 404 for not found, 500 for server errors).

Example:

javascript

app.use((err, req, res, next) => { res.status(500).json({ error: err.message }); });

🔹 Use API Documentation Tools

Swagger or Postman to document and test APIs.

4. Deploying Your API

Once your API is built, deploy it using:

Cloud Platforms: AWS (Lambda, EC2), Google Cloud, Azure.

Serverless Functions: AWS Lambda, Vercel, Firebase Functions.

Containerization: Deploy APIs using Docker and Kubernetes.

Example: Deploying with DockerdockerfileFROM node:14 WORKDIR /app COPY package.json ./ RUN npm install COPY . . CMD ["node", "server.js"] EXPOSE 3000

5. API Testing and Monitoring

Use Postman or Insomnia for testing API requests.

Monitor API Performance with tools like Prometheus, New Relic, or Datadog.

Final Thoughts

Creating APIs for web applications involves careful planning, development, and deployment. Following best practices ensures security, scalability, and efficiency.

WEBSITE: https://www.ficusoft.in/python-training-in-chennai/

[sanjeetkarki]

Microservices architecture offers a powerful framework for developing modern, scalable, and resilient applications. By decomposing applications into smaller, independently deployable services, organisations can accelerate development cycles, enhance agility, and improve scalability. Java frameworks like Spring Boot, Dropwizard, Micronaut, and Vert.x provide developers with the essential tools and infrastructure to build effective microservices in Java.

[innovativesjobs]

How to Prepare for Interviews for Senior Software Engineer Jobs

“Crack the Code: Mastering Your Interview for Senior Software Engineer Jobs”

Landing a position in Senior Software Engineer Jobs is no small feat. It requires not only exceptional technical skills but also the ability to demonstrate leadership, problem-solving prowess, and a deep understanding of software development principles. If you’re aiming to secure a role in Software Engineer Jobs at the senior level, you need a strategic approach to your interview preparation. Here’s a comprehensive guide to help you ace your interviews and land that dream job!

1. Understand the Role and Expectations

Before diving into preparation, it's crucial to understand what makes a great Senior Software Engineer. Here’s what recruiters typically look for:

Technical Expertise: Deep knowledge in programming languages (Java, Python, C++), algorithms, and data structures.

System Design Skills: Ability to design scalable, reliable, and efficient systems.

Leadership and Mentorship: Proven track record of leading teams, mentoring junior engineers, and driving projects to completion.

Problem-Solving Ability: Strong analytical skills and a knack for tackling complex technical challenges.

2. Revise Core Technical Skills

As a Senior Software Engineer, you must demonstrate a strong grasp of technical fundamentals. Here’s a focused approach:

Advanced Algorithms and Data Structures: Brush up on algorithms (sorting, searching, dynamic programming) and data structures (trees, graphs, heaps). Practice problems on platforms like LeetCode, HackerRank, or CodeSignal.

System Design: Master system design principles. Study case studies and practice designing scalable systems. Key areas include load balancing, caching, database sharding, and microservices architecture. Resources like Grokking the System Design Interview can be invaluable.

3. Hands-On Coding and Problem Solving

Coding interviews are a critical component of Senior Software Engineer Jobs. Here’s how to excel:

Mock Interviews: Participate in mock interviews with peers or use platforms like Pramp or Interviewing.io to simulate real interview scenarios. This helps you get comfortable with the format and receive feedback.

Coding Practice: Work on coding challenges regularly. Focus on solving problems that are likely to be asked in senior-level interviews. Use tools like LeetCode, Codeforces, or TopCoder.

4. Deep Dive into Technologies and Tools

Senior roles often require expertise in specific technologies. Here’s a breakdown:

Programming Languages: Ensure you are proficient in the languages commonly used in the industry. For instance, Java, Python, C++, or JavaScript.

Development Tools and Frameworks: Be well-versed in popular frameworks and tools relevant to your field. This might include Spring Boot for Java, Django for Python, or React for JavaScript.

DevOps and CI/CD: Familiarize yourself with DevOps practices, CI/CD pipelines, and tools like Jenkins, Docker, Kubernetes, or Terraform. Understanding these can give you an edge.

5. Showcase Your Problem-Solving Skills

Problem-solving is a core competency for senior roles. Here’s how to showcase it:

Real-World Problems: Prepare to discuss past projects and problems you’ve solved. Highlight your role, the challenges faced, and the impact of your solutions.

Technical Deep Dives: Be ready to dive deep into technical discussions. Explain your thought process, decisions, and trade-offs. Use the STAR method (Situation, Task, Action, Result) to structure your answers.

6. Prepare for Behavioral and Situational Questions

Senior positions often come with leadership and behavioral questions. Here’s how to prepare:

Leadership Experience: Be ready to discuss your experience in leading teams, mentoring peers, and driving projects. Use specific examples to demonstrate your leadership style and achievements.

Problem-Solving Scenarios: Expect situational questions that test your decision-making and problem-solving skills. Practice questions like, “How do you handle conflicts within your team?” or “Describe a time when you had to solve a complex technical problem.”

7. Demonstrate Your Soft Skills

Soft skills are crucial for senior roles. Here’s how to highlight them:

Communication Skills: Clearly articulate your thoughts and ideas. Practice explaining complex technical concepts to non-technical stakeholders.

Collaboration and Teamwork: Showcase your ability to work effectively in a team. Discuss your experience with cross-functional teams, code reviews, and collaborative projects.

8. Research the Company and Role

Understanding the company’s culture, products, and technologies is essential:

Company Research: Study the company’s website, recent projects, and news. Understand their tech stack, products, and market position.

Role-Specific Preparation: Review the job description carefully. Align your skills and experiences with the requirements. Prepare to discuss how you can contribute to their projects and goals.

9. Ask Insightful Questions

Asking thoughtful questions can set you apart:

About the Team: Inquire about the team structure, development processes, and current projects. Questions like, “What are the biggest challenges the team is facing?” or “How does the team handle code reviews?”

About Growth and Opportunities: Ask about career growth opportunities, learning and development programs, or future projects. Questions like, “What opportunities are there for professional development?” or “What are the next big projects the team is working on?”

10. Practice, Practice, Practice

The key to acing your interview is consistent practice:

Mock Interviews: Schedule regular mock interviews with peers or mentors. Use platforms like Interviewing.io or Pramp for real-time feedback.

Coding Practice: Dedicate time each day to coding practice. Solve problems on competitive coding sites and review your solutions.

Feedback Loop: Seek feedback on your coding and interview performance. Use this feedback to refine your approach and improve continuously.

[codeonedigest]

Spring Boot GraphQL Mongo DB Project Tutorial with Example for API Devel... Full Video Link        https://youtu.be/JElcKeh9a5A Hello friends, new #video on #springboot #graphql #mongodb #api #microservices #application #tutorial for #developer #programmers with #examples are published on #codeonedigest #youtube channel.  @java #java #aws #awscloud @awscloud @AWSCloudIndia #salesforce #Cloud #CloudComputing @YouTube #youtube #azure #msazure #codeonedigest @codeonedigest   #graphqlspringboot #graphqlspringboottutorial #graphqlspringbootmicroservicesexample #graphqlspringbootexample #graphqlmongodbexample #graphqlmongodbspringboot #springbootmongodb #springbootgraphql #springbootgraphqltutorial #springbootgraphqlexample #springbootgraphqlresolver #springbootgraphqlschema #springbootgraphqlschemamapping #springbootgraphqlmongodb #mongodbtutorialforbeginners #springboottutorial #springbootproject #graphql

[vatt-world]

hi

java 8 stream filter with multiple conditions lambda stream vs filter intermdiate and terminal operations filter even number functional interface in java java 8 features java stored procedures return results into variable

return the output of SP call SP from springboot

lazy loading in hibernate

interface injection in spring

4 solutions for selective injection

java - spring interface injection example

spring new bean every time

create spring bean

dependency injection spring boot

controller vs restcontroller

docker compose springboot

dockerizing in springboot app

spring boot singleton docker

spring bean scopes

spring filter lifecycle

using filters in spring web app

intreceptor vs filter

spring boot microservices intreceptor

using interceptor in spring boot api

[shubhamchivhane]

Spring boot and microservices:

The idea of Microservices is simple, breaking a big monolithic application that contains everythng from UI to service layer to database into small chunk applications that are loosely coupled and can work on their own.

For example, in a company 1ike Uber, you could have several applications providing different services e.g. discovering when a driver is online or a passenger

is searching for a cab, finding a route, traffic, and handling payments.

These small applications are known as Microservices.

In the Java world, Spring provides several tools and frameworks to develop microservices e.g. Spring Boot and Spring Cloud.

Spring boot is very popular framework because its function like ease to setup autoconfiguration, support to other framework like ORM.

Java Monolithics:

Imagine you are working for a bank application. You provide users a application, which they can use to open up a new bank account, invest in mutual fund, insurence.

we will have different module /service for each function 1ike to opne account, manage balance, insurence etc.

That all code will increase code size. so that it will take more time to deploy it on server

Suppose there is issue in one service then also we need to put down whole application.Also finding any issue wil1 be difficult.

So in case of microservices , we will have different service for each module, which will operate independant of each other.

Let's consider there is a issue in insurence module then will put down only that service other will run as it is independant

and also we will not need to deploy whole application we will just deploy that service.

So here is question.

Is it micro if it only has 5-7 classes inside?

Are 100 or 1000 classes still micro?

Has it even got anything to do with the number of classes?

Instead of theorizing about it, we'1l keep things pragmatic and do two things:

Call all separately deployable services microservices

independent of size or domain boundaries.

Focus on the important topic of inter-service communication, because your microservices need ways to talk to each other.

Communication between two microservice

There are two ways to communicate:

Synchronous Communication

Asysnchronous Communication

Synchronous Communication usually done by HTTP and Rest ike service that return xml or json responses.

Asynchronous microservice communication is usually done through messaging with a IMS implementation and/or with a protocol like AMQP.

Usually, because the number of, for example, email/SMTP-driven integrations is not to be underestimated in practice.

Microservice Architecture

There are many way we can develop microservice. we can convert existing monolithic applicaton to microservices application

or we can start from scratch

[deltainfoteklive]

How to Hire a Java Developer

Here are some tips to hire a Java developer:

How to Hire a Java Developer

•Update your job posting on websites like Indeed, Monster, Stack Overflow, etc. The posting should clearly mention the Java technologies and frameworks required for the position like J2EE, Spring, Hibernate, etc. This will help Java developers interested in those technologies apply for the role.

•Conduct phone interviews to shortlist candidates. Ask them questions related to Java features, OOP concepts, design patterns, etc. to evaluate their technical skills.

•Check their experience with the tools and frameworks in your project. For example, if you use Spring Boot, ask them questions about Spring Boot, its features, integration with other frameworks, etc.

•Test their coding skills with logical problems that can be solved using Java. Give them an algorithm question and see how efficiently they can code the solution in Java.

•Check their knowledge of Java best practices, design principles (SOLID), performance tuning, scalability, etc. An experienced Java developer should have good insights into these areas.

•Ask for some sample projects developed in Java to evaluate their work. You can analyze the architecture, features used, challenges faced, and solutions implemented.

•Review their GitHub profile and Google results for any public contributions or work mentioned about them which can validate their Java skills.

•Check if they keep upgrading their knowledge by following the latest advancements in Java like new features in Java 8, Java 9, reactive paradigm, microservices, etc. Tech-savvy developers always try to learn new things.

•Take references from their previous companies and connect with colleagues they have worked with. References can provide insights into their technical skills, work ethics, strengths, and weaknesses.

•Negotiate and finalize the candidate after evaluating them thoroughly based on the required skills and experience. Get the best Java talent for your project needs.

[workflowenginemapping]

What Is a Workflow Engine?

Workflow engine is a software application that is capable of running multiple business processes. It enables users to create, configure, test, and deploy workflows. The engine also provides version control. This means that the user can force a new version of the workflow to run or choose to run the previous version.

Workflow engine is usually deployed on a database server. It also provides the ability to manage workflows in offline mode. If an error occurs, the engine will retry the workflow state.

There are two types of engines - embedded and standalone. An embedded engine is a stepping stone to a remote engine. However, this type puts more load on the developer.

A standalone engine is better suited for more advanced interactions. In addition, it is much easier to provision resources.

One way to solve this problem is to deploy separate resources on a Docker container. Another approach is to use cloud services. These services allow you to provision resources using a service request. You can then use your own resources, or provision other services from the cloud.

For example, if you need to test a microservices application, you can use the Spring Boot framework. This allows you to register Activities. Each Activity is a function, which can be short-running or long-running.

Activities are registered as part of the application code. During testing, you can replace Activity dependencies with mock replacements.

ProcessContext objects are passed between activities in the workflow. When a task in the workflow is completed, ProcessContext objects remain unchanged.

Also Read : Spring Boot framework

SITES WE SUPPORT

Workflow Engine Mapping - Blogger

SOCIAL LINKS

Facebook Twitter LinkedIn Instagram YouTube

[xceltecseo]

Spring Boot Microservices: How to Build Microservices App Using Spring Boot

We covered how to set up and run Spring Boot using the Eclipse IDE and CLI in a previous presentation. Let me show you how to construct Microservices Applications for Top Sports Brands using Spring Boot and Netflix Eureka Server in this Spring Boot Microservices post. Here XcelTec will explain the issues with Microservices Architecture before starting building the app. Spring Boot enables building production-ready applications quickly and provides non-functional features like;

Embedded servers which are easy to deploy with the containers

It helps in monitoring the multiples components

It helps in configuring the components externally

Challenges With Microservice Architecture

While it may appear that creating a number of smaller microservices is simple, microservice architectures have a number of intrinsic complications. Let’s have a look at some of the issues;

Automating the Components

Because there are a lot of little components instead of a monolith, it’s tough to automate everything. For example, builds, deployment, monitoring, and so on.

Perceptibility

Because there are so many little components to install and maintain, it can be difficult to keep track of and discover faults. It necessitates a high level of perceptibility around all of the components.

Configuration Management

It’s critical to keep track of component settings across several environments.

Closure

Hope you got an idea of how java microservices can be useful for your business, if you are looking to make an application java development services can really be helpful for enterprise app development.

Get in touch with us for more!

Visit to explore more on How to Build Microservices App Using Spring Boot?

For more info, you can visit: Xceltec

Contact us on:- +91 987 979 9459 | +1 919 400 9200

Email us at:- sales@xceltec.com

[digitalraghul]

Spring in Java Frameworks And Its Features

How does Spring Framework work?

A lightweight framework is a spring. It can be thought of as a framework of frameworks because it supports many different frameworks, including Struts, Hibernate, Tapestry, EJB, JSF, etc. The framework can be viewed in a larger sense as a platform where we can coordinate our efforts to address diverse technological problems.

The Spring framework comes with a number of modules, such as IOC, AOP, DAO, Context, ORM, WEB MVC, etc. The next page will discuss these modules. Understanding IOC and Dependency Injection should come first.

Spring Features

Flexible

Productive

Fast

Secure

Supportive

Everywhere

Spring has arrived everywhere:

One of the most popular frameworks in use today is Spring. It is used in the creation of Java enterprise applications. It can be used to create web services, web apps, and cloud-based services, among other things.

It is used by major international tech firms like Google, Alibaba, Amazon, Oracle, etc. The libraries that Spring offers are used by Java developers all over the world. It's used almost everywhere, including in streaming TV, IoT connections, eCommerce software, and banking.

Spring is Practical:

To assist in the development of applications, Spring provides developers with customizable third-party libraries and extensions.

Inversion of Control (IoC) and Dependency Injection are the two main features of Spring that make it flexible for creating corporate applications (DI).

It's a productive spring:

There is no doubting that Spring is a productive framework, and Spring has gotten even more so with the inclusion of the Spring Boot project. All prerequisites and pre-configured settings are included with Spring Boot.

It includes an embedded web server to facilitate the rapid development of microservices. It is essential to incorporate spring projects, which facilitate the development of subsequent applications. It provides, for example, a framework for creating applications, Spring Data for establishing database connections, Spring Cloud for using the cloud, and Spring Security for security.

As a result, all we need to do to prepare them is add the necessary information to our application.

Spring Comes Quickly:

The Spring framework's performance is substantially improved by its design and architecture. The Spring Foundation, which focuses on performance, makes it possible for applications to launch rapidly, run stably, and terminate swiftly.

Spring projects support the reactive programming style for better productivity. For quick application startup, Spring provides a Spring Initializer function. auto-configured Spring

Developers are given the resources they need, such as embedded web servers, by the boot to construct apps quickly.

Live Reload is added to Spring Dev Tools, which solves the issue and does away with the need for a server restart.

The Spring is Safe:

Java language offers security, and Spring is secure by default. However, we can use Spring Security for additional security. The security of any Spring application is taken care of by one of the Spring projects, Spring Security.

Due to its status as a Spring framework component, integration with the application is straightforward. Spring responds to security issues in a timely manner.

It closely monitors third-party dependencies and regularly publishes updates to maintain the safety and security of our data and programs.

Spring is Helpful;

Spring offers a big, global, massive, and diverse community that supports developers everywhere. Spring provides assistance to everyone, regardless of where they reside or their level of comprehension.

It is advantageous to people of various ages and educational backgrounds, from complete beginners to business experts.

The Spring community provides many resources, such as formal training and certification, videos, manuals, tutorials, meetups, and support.

Spring MVC

Describe MVC:

Model-View-Controller (MVC) is an architectural design pattern that separates an application into three main logical components: the model, the view, and the controller. Each of these components was developed to address a certain task associated with application development. One of the most widely used, industry-standard web development frameworks for scalable and extensible projects is MVC.

Spring MVC Architecture:

View in Spring MVC:

The view is a component of the MVC architecture that is utilized to provide the user with the user interface output they requested. A View page can be created from any HTML or JSP file.

Internally, Spring MVC uses a view resolver to obtain the user's preferred view. There are numerous ways to configure the view in the Spring application. We can utilize XML, Java code, and property files to configure the view.

You may render models in a browser without being constrained by a certain view technology thanks to the View Resolver and View interfaces that Spring MVC defines. View Resolver offers a mapping between view names and actual views.