What are status codes in REST APIs?

Best Full Stack Java Training Institute in Hyderabad with Live Internship Program

Are you aiming to build a strong foundation in software development and land your dream job in the IT industry? Look no further than Quality Thought, the best Full Stack Java training institute in Hyderabad, known for its industry-focused training and valuable live internship program.

Quality Thought’s Full Stack Java course is designed for both beginners and professionals who want to master the skills required to develop real-world web applications. The course covers everything from Core Java, Advanced Java, JDBC, Servlets, JSP, Spring, Spring Boot, Hibernate, to front-end technologies like HTML, CSS, JavaScript, Bootstrap, Angular, and React.

What makes this training truly effective is the live internship, which provides hands-on experience on real-time projects. Students work in a simulated industry environment, dealing with actual coding tasks, debugging, deployment, version control, and team collaboration. This practical exposure helps learners build confidence and problem-solving skills—critical assets in any software job.

Program Highlights:

Comprehensive Full Stack Java Curriculum

Real-Time Projects with Live Internship

Mentorship from Industry Experts

Daily Practice, Assignments & Project Work

Resume Preparation, Mock Interviews & Placement Assistance

Internship Certificate & Career Guidance

Whether you're a fresher just out of college or a working professional planning a career switch, Quality Thought offers the best platform to become a skilled Full Stack Java Developer. With a focus on practical learning and job readiness, many of our students are now placed in top IT companies across India.

Join Quality Thought today – Get trained, get certified, gain real-world experience, and step confidently into the IT industry!

In REST APIs, status codes are part of the HTTP response sent by the server to indicate the result of a client’s request. They are 3-digit numbers grouped into categories, making it easy to understand whether the request was successful, failed, or requires further action.

Categories of HTTP Status Codes:

1. 1xx – Informational

   • Temporary responses indicating request is received and processing continues.

   • Example: 100 Continue, 101 Switching Protocols.

2. 2xx – Success

   • The request was successfully processed.

   • Common codes:

     • 200 OK → Successful GET/PUT/PATCH/DELETE.

     • 201 Created → New resource created (POST).

     • 202 Accepted → Request accepted but not yet processed.

     • 204 No Content → Success but no data returned.

3. 3xx – Redirection

   • Indicates the client must take additional action.

   • Example:

     • 301 Moved Permanently → Resource moved to a new URL.

     • 302 Found → Temporary redirection.

     • 304 Not Modified → Cached version can be used.

4. 4xx – Client Errors

   • The client made a mistake in the request.

   • Common codes:

     • 400 Bad Request → Invalid syntax or parameters.

     • 401 Unauthorized → Authentication required.

     • 403 Forbidden → Authenticated but not allowed.

     • 404 Not Found → Resource not available.

     • 409 Conflict → Conflict in request (e.g., duplicate data).

5. 5xx – Server Errors

   • The server failed to process a valid request.

   • Common codes:

     • 500 Internal Server Error → Generic server failure.

     • 502 Bad Gateway → Invalid response from upstream server.

     • 503 Service Unavailable → Server temporarily overloaded/down.

     • 504 Gateway Timeout → Upstream server did not respond in time.

👉 Summary:

• 1xx: Info

• 2xx: Success

• 3xx: Redirect

• 4xx: Client error

• 5xx: Server error

Read more  :

What are the HTTP methods used in REST?

What is REST architecture?

Visit  Quality Thought Training Institute in Hyderabad