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What is Payload in REST API? How to send Payload using HTTP Post Request and HttpClient

Hello and welcome to the blog post. In this comprehensive article we are going to take a look at an interesting topic. I’m sure you all are familiar with client-server architecture. If not let me recap it quickly for you. 

A Client is a machine (or a web-browser) that request for desired results from the  server. In other words, clients initiate requests for services or resources, while servers provide those services or resources upon request. The client-server model forms the foundation of many networked applications and systems, where clients and servers communicate and collaborate to fulfill various tasks and deliver services.

What is a Payload?

When a client sends a request to a server, the payload typically contains the data or parameters required by the server to process the request. For example, in a client-server architecture for a web application, the payload of an HTTP request sent by the client may include parameters for a form submission, JSON data for an API request, or a file to be uploaded.

On the server side, when the server sends a response back to the client, the payload contains the data or information requested by the client. This can include HTML content, JSON responses, file attachments, or any other data relevant to the specific request made by the client.

Payload in REST API

The information supplied in the body of an HTTP request is referred to as a payload in the RESTful API architecture. It represents the data that is being sent from the client to the server or the other way around. Depending on the content type supplied in the request headers, the payload may be in one of several forms, including JSON, XML, or plain text.

The payload carries the necessary data required to perform operations on the server or to retrieve specific resources. For example, when creating a new resource, the payload would typically contain the data that needs to be stored on the server. When updating an existing resource, the payload would include the modified data.

What is an HttpClient? 

HttpClient is a powerful Java package that offers quick and efficient way for submitting HTTP requests and receiving server responses. Starting with Java 11, it is a part of the Java SE standard library and offers a comprehensive API for interacting with HTTP-based services.

HttpClient's main objective is to make it easier for client applications to communicate with RESTful APIs, web services, and other HTTP-based endpoints. The low-level aspects of creating and managing connections, dealing with request and response bodies, modifying headers, controlling timeouts, and dealing with redirection are abstracted away.

You can perform various HTTP operations like GET, POST, PUT, DELETE by using HttpClient. It supports both synchronous and asynchronous request processing and offers a number of configuration options for customization.

Let’s take an example on how to send a POST request to REST API using HttpClient

import com.fasterxml.jackson.databind.ObjectMapper;

import java.net.URI;

import java.net.http.HttpClient;

import java.net.http.HttpRequest;

import java.net.http.HttpResponse;

import java.net.http.HttpHeaders;

import java.net.http.HttpResponse.BodyHandlers;

public class HttpClientExample {

    public static void main(String[] args) throws Exception {

        // Create an instance of HttpClient

        HttpClient httpClient = HttpClient.newHttpClient();

        // Define the URL of the REST API endpoint

        String url = "http://api.example.com/users";

        // Create a User object

        User user = new User("John Doe", 30);

        // Serialize the User object to JSON

        ObjectMapper objectMapper = new ObjectMapper();

        String requestBody = objectMapper.writeValueAsString(user);

        // Build the HTTP request

        HttpRequest request = HttpRequest.newBuilder()

                .uri(URI.create(url))

                .header("Content-Type", "application/json")

                .POST(HttpRequest.BodyPublishers.ofString(requestBody))

                .build();

        // Send the request and receive the response

        HttpResponse<String> response = httpClient.send(request, BodyHandlers.ofString());

        // Extract the User object from the response

        String responseBody = response.body();

        User responseUser = objectMapper.readValue(responseBody, User.class);

        // Print the response User object

        System.out.println("Response User: " + responseUser);

    }

}

class User {

    private String name;

    private int age;

    // Constructors, getters, and setters

    @Override

    public String toString() {

        return "User{" +

                "name='" + name + '\'' +

                ", age=" + age +

                '}';

    }

}

In this example, we have a User class representing the user object. We use the ObjectMapper from the Jackson library to serialize the User object to JSON format. 

We then create an HttpRequest object with the necessary details, including the URI, headers (in this case, "Content-Type" is set to "application/json"), and the request body containing the serialized User object. 

After sending the request using httpClient.send(), we receive the response as an HttpResponse object. We extract the response body as a JSON string. 

Finally, we deserialize the response JSON string back into a User object using objectMapper.readValue(). The resulting User object represents the response payload, which we can use as needed.

Sending Payload to REST API using HTTP POST Request and HttpClient in Java

import java.net.URI;

import java.net.http.HttpClient;

import java.net.http.HttpRequest;

import java.net.http.HttpResponse;

import java.net.http.HttpHeaders;

import java.net.http.HttpEntity;

import java.net.http.HttpHeaders;

import java.net.http.HttpRequest.BodyPublishers;

import java.net.http.HttpResponse.BodyHandlers;

public class HttpClientExample {

    public static void main(String[] args) throws Exception {

        HttpClient httpClient = HttpClient.newHttpClient();

        String jsonPayload = "{\"name\": \"Someone \", \"email\": \"someone@example.com\"}";

        HttpRequest request = HttpRequest.newBuilder()

                .uri(URI.create("http://example.com/api/resource"))

                .header("Content-Type", "application/json")

                .POST(BodyPublishers.ofString(jsonPayload))

                .build();

        HttpResponse<String> response = httpClient.send(request, BodyHandlers.ofString());

        int statusCode = response.statusCode();

        String responseBody = response.body();

        System.out.println("Status Code: " + statusCode);

        System.out.println("Response Body: " + responseBody);

    }

}

In the example above, we create a JSON payload using a sample data object. We set the HTTP method to POST, the request URL to "http://example.com/api/resource", and the content type to "application/json". The payload is then sent in the body of the request using the BodyPublishers.ofString() method. 

Finally, we retrieve and handle the response from the server.

Remember to replace "http://example.com/api/resource" with the actual endpoint URL of the REST API you want to send the payload to, and modify the payload data according to your requirements and the API's expected format.

Let me show you how to send other types of payloads from the following example.

1) Sending a Form-UrlEncoded Payload

import java.net.URI;

import java.net.http.HttpClient;

import java.net.http.HttpRequest;

import java.net.http.HttpResponse;

import java.net.http.HttpHeaders;

import java.net.http.HttpEntity;

import java.net.http.HttpHeaders;

import java.net.http.HttpRequest.BodyPublishers;

import java.net.http.HttpResponse.BodyHandlers;

import java.net.URLEncoder;

import java.nio.charset.StandardCharsets;

public class HttpClientExample {

    public static void main(String[] args) throws Exception {

        HttpClient httpClient = HttpClient.newHttpClient();

        String payload = "name=" + URLEncoder.encode("John Doe", StandardCharsets.UTF_8)

                + "&email=" + URLEncoder.encode("johndoe@example.com", StandardCharsets.UTF_8);

        HttpRequest request = HttpRequest.newBuilder()

                .uri(URI.create("http://example.com/api/resource"))

                .header("Content-Type", "application/x-www-form-urlencoded")

                .POST(BodyPublishers.ofString(payload))

                .build();

        HttpResponse<String> response = httpClient.send(request, BodyHandlers.ofString());

        int statusCode = response.statusCode();

        String responseBody = response.body();

        System.out.println("Status Code: " + statusCode);

        System.out.println("Response Body: " + responseBody);

    }

}

In this example, we are sending a form-urlencoded payload to the REST API endpoint "http://example.com/api/resource". The payload contains two fields, name and email, which are URL-encoded using the URLEncoder.encode() method. The Content-Type header is set to "application/x-www-form-urlencoded".

2) Sending a Plain Text Payload

import java.net.URI;

import java.net.http.HttpClient;

import java.net.http.HttpRequest;

import java.net.http.HttpResponse;

import java.net.http.HttpHeaders;

import java.net.http.HttpEntity;

import java.net.http.HttpHeaders;

import java.net.http.HttpRequest.BodyPublishers;

import java.net.http.HttpResponse.BodyHandlers;

public class HttpClientExample {

    public static void main(String[] args) throws Exception {

        HttpClient httpClient = HttpClient.newHttpClient();

        String textPayload = "This is a plain text payload.";

        HttpRequest request = HttpRequest.newBuilder()

                .uri(URI.create("http://example.com/api/resource"))

                .header("Content-Type", "text/plain")

                .POST(BodyPublishers.ofString(textPayload))

                .build();

        HttpResponse<String> response = httpClient.send(request, BodyHandlers.ofString());

        int statusCode = response.statusCode();

        String responseBody = response.body();

        System.out.println("Status Code: " + statusCode);

        System.out.println("Response Body: " + responseBody);

    }

}

In this example, we are sending a plain text payload to the REST API endpoint "http://example.com/api/resource". The payload simply contains the text "This is a plain text payload." The Content-Type header is set to "text/plain" to indicate that the payload is in plain text format.

Summary 

In summary, sending a payload to a REST API using an HTTP POST request and HttpClient in Java involves creating an HTTP request with the desired payload, specifying the necessary headers, and sending the request using the HttpClient instance. The server will process the payload and provide a response, which can be accessed and utilized accordingly.

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If you are a programmer, software developer, team lead, or project manager who wants to learn Agile and Scrum in 2025 and looking for the best Agile courses, then you have come to the right place. Earlier, I shared free Agile courses and books, and today, I will share the best Agile and Scrum online courses you can join in 2025 to learn these in-demand skills. The Agile software development approach is a powerful approach that is very popular among the development community. As technology advances rapidly, the client expectations are high, and the delivery time is less.

Top 5 Courses to Learn Data Analytics in 2025 - Best of Lot

Hello guys, if you want to learn Data Analytics and looking for best online courses and tutorials then you have come to the right place. In the past I have shared best Data Science Courses and things a Data Scientist should learn and in this article, I am going to share best online courses to learn Data Analytics. The list includes best Data Analytics courses from Udemy, Coursera, Pluralsight, and other popular online learning platform. They are taught by experts and they are also the most comprehensive and up-to-date resources to learn Data Analytics in 2025. 

Top 10 Programming Languages to Learn in 2025 [UPDATED]

Hello guys, we're just one week away from 2025. This is when most of us start making our goals like physical goals, educational goals, and financial goals. As a programmer, one of our goals is to learn new technologies and programming languages, but which languages should you learn? Since acquiring a programming language requires both time and patience, you should learn a language worth the effort; I mean., it can reward you with a better job and career growth. In this article, I will share with you the top 10 programming languages you can learn in 2025 to get a job in your favorite companies like Google, Microsoft, and Facebook.

Top 6 Courses to Learn Google Cloud Platform or GCP in 2025 - Best of Lot

Hello folks, if you want to learn Google Cloud Platform in 2025 and looking for the best resources like online courses, books, websites, and tutorials then you have come to the right place. Earlier, I have shared the best free Google Cloud platform courses and best websites to learn GCP, in this article, I am going to share the best online courses to learn Google Cloud Platform in 2025. The Google Cloud Platform, or GCP, is similar to Amazon Web Services and is a public cloud vendor catering to businesses and enterprises. Customers can use the Google Cloud Platform to access the computer resources in Google's data centers present across the world. It is offered either as a free addition or on a pay-per-use basis.

Top 8 Free Courses to Learn Web Design in 2025 - Best of Lot

Hello guys, if you want to become a web designer and look for free online courses to learn web design in 2025, you have come to the right place. In the past, I have shared the best free online resources to learn key web development skills like HTML, CSS, JavaScript, Bootstrap, and today, I am going to share the best free resources to learn web design and development.  These free courses have been created by expert instructors like Jonas Schmedtmann, and they are from websites like Udemy, Coursera, and edX.  You can use these free online courses to learn these valuable skills and become a web designer and developer.

Top 5 Free Courses to learn Django for Beginners in 2025 - Best of Lot

Hello guys, if you want to learn Django and looking for some free online Django courses to start with, then you have come to the right place. In the past, I have shared the best Python courses and best Django courses, and today, I am going to share free Django courses you can join online to learn this useful full-stack Python framework. There is no doubt that Python is the king of a Programming language at this moment, and one main reason for that is the huge number of powerful frameworks and libraries it has for different purposes like automation, data science, machine learning, scripting, data analysis,  and Web development is no different.

10 Best Udemy Courses of Colt Steele for Web Developers in 2025

Before we get to the 10 best Udemy courses of Colt Steele, let me tell you who the man really is. Colt Steele is one of the most popular and highly-rated instructors on the Udemy platform. He is also a highly-decorated professional developer with a serious love for teaching. Colt Steele has spent the last few years teaching normal people to program at two different impressive boot camps. He has helped hundreds of people become professional software developers and change their lives. His students now work in companies like Google, Salesforce, and Square. Impressive, right?

10 Best Udemy Courses of Tim Buchalaka for Java and Python Programmers in 2025

Hello guys if you are looking for best Udemy courses for Java developers, mostly from Tim Buchalaka then you have come to the right place. For those of you who don't know, Tim Buchalaka is a highly-experienced software developer. During his long glittering career, he has worked for a lot of major companies like Fujitsu, Mitsubishi, and Saab. Tim Buchalaka's amazing video lectures have been used to train software developers in major companies like Mercedes-Benz, PayPal, VW, Pitney Bowers, IBM, and T-Mobile. What sets Tim apart from loads of other instructors is the fact that most of those instructors have never been professional programmers. They also cannot boast about a distinguished professional development career like him.

10 Best Udemy Courses Of Rob Percival to Learn Python, JavaScript and Tech skills in 2025

Helo guys, if you are looking for best online courses by Rob Percvial, one of the Udemy's top instructor to learn web development, Python, JavaScript, and Node.js then you have come to the right place. In the past, I have shared best online courses by Jose Portilla, Stephen Grider, Maximillian SchwarzMuller, Stephane Maarek and Brad Traversy and in this article, I am going to share best online course by Ro Percival, one of the top Udemy instructor and my favorite. But, before we start with the 10 best Udemy courses from Rob Percival, let me tell you who Rob is.

10 Best Udemy Courses of Stephen Grider to Learn Tech Skills in 2025

Hello guys, if you are looking to learn web development or app development then there is a good chance that you may heard about Stephen Grider, one of the best Udemy instructor when it comes to teaching web development technologies. In the past, I have shared best online courses by Jose Portilla, Maximillian SchwarzMuller, Stephane Maarek and Brad Traversy and in this article, I am going to share best online course by Stephen Grider. But, First things first. before I tell you about the 10 best Udemy courses of Stephen Grider, let me tell you who the man really is.

Top 5 courses for Google Cloud Professional Network Engineer Certification in 2025

Networking is an essential aspect of any cloud platform. The individual responsible for handling the networks should have a proper understanding of networking fundamentals as well as enough experience in networking. The cloud network engineer at Google is responsible for implementing and managing the network architectures of the platform. The professionals should have hands-on experience of working with the Google cloud platform for at least one year. 

Top 5 Free Courses to Learn Deep Learning and Artificial Intelligence in 2025 - Best of Lot

Hello guys, if you are interested in learning about Artificial Intelligence and how to build AI and looking for free online resources, you have come to the right place. Earlier, I have shared free Machine Learning and Free Data Science courses, and in this article, I am going to share free Artificial Intelligence and deep learning courses for beginners. These free courses are created from Udemy, Coursera, edX, and Pluralsight and designed by experts and trusted by thousands of people who want to learn Artificial Intelligence. Clicking on this article link shows that you are very interested in learning more about artificial intelligence but wait! Learning artificial intelligence is not that easy and never will be. 

Top 5 PostgreSQL Courses and Tutorials for Beginners in 2025 - Best of Lot

Hello guys, if you want to learn PostgreSQL and looking for the best resources like online courses, books, and tutorials then you have come to the right place. In the past, I have shared the best online courses to learn MySQL, Oracle, SQL Server, and SQL in general, and in this article, I am going to share the best online courses to learn PostgreSQL from Scratch. If you don't PostgreSQL is one of the popular databases and used by many companies in production It is an open-source, object-relational database system that has been around for more than 15 years. It has a strong reputation for reliability, stability, and data integrity.

Top 5 Courses To Learn ASP .NET Framework for Beginners 2025 - Best of Lot

Hello guys, if you want to learn the .NET framework and platform and looking for the best resources like books, online courses, and tutorials then you have come to the right place. Earlier, I have shared the best free C-Sharp courses and in this article, I am going to share the best online courses to learn .NET for Beginners. If you don't know, .NET is the second most popular platform for application development after Java, and it's used widely across domains including investment banks. These are truly the best resources to learn and master .NET in 2025. 

Top 5 Courses to Learn Perl Scripting in 2025 - Best of Lot

Hello everyone, today I'm going to talk about Perl, a very strong text processing programming language. While writing a Perl script to create a report from log files ten years ago, I first encountered Perl. At the time, I knew that Perl was unrivaled when it came to string and text processing. It has a number of helpful data structures and facilities, making loading data from files and processing data easier than with any other programming language. Knowing a programming language like Python or Perl may tremendously help a senior developer because scripting is such a vital skill.

Top 10 CodeCademy Courses to Learn Tech Skills for Beginners in 2025 - Best of Lot

If your work is in any way related to coding or technology, you would surely know what CodeCademy is. But for those of you who don't know, it is an online platform that teaches a wide range of programming languages like JavaScript, Python, and SQL. There are also career paths based on computer science, machine learning, data science, and developer tools. CodeCademy was founded in 2011 by Zach Sims and Ryan Bubinski and started as an online coding platform with both free as well as paid plans. Since then, it has grown considerably and right now offers courses based on 14 different programming languages. There are also courses on a wide range of libraries and frameworks.

Top 5 MATLAB courses for Beginners in 2025 - Best of Lot

Before we get to the best courses that can teach you MATLAB, let me tell you what it exactly is. MATLAB is a high-performance programming language used for technical computing. MATLAB is a programming language that integrates computation, visualization, and programming into one package. It also has an easy-to-understand environment that provides solutions in mathematical notations. MATLAB has a wide variety of uses, including, math and computation, modeling, simulation, and prototyping, scientific and engineering graphics, algorithm development, data analysis and visualization, and application development. In the most simple terms, MATLAB is an interactive system with an array as the basic data element.

Top 6 Online Course to Learn React.js with Hooks Beginners in 2025 - Best of Lot

Hello guys, if you want to learn React hooks and looking for the best React hooks courses then you cha come to the right place. Earlier, I have shared free React courses, books, and websites to learn and master React.js, and today, I am going to share the best React Hooks courses to deep dive and learn hooks in depth. React is a revolutionary front-end JavaScript library. It is free. Open-source and can be used for building user interfaces and other UI components. Most software developers use React as a base for developing mobile applications. 

Top 6 Courses to learn Web Development and Web Design in 2025 - Best of Lot

Hello guys,  web development is one of the most lucrative fields of Software development, and demand for web developers is always increasing. It's also one of the exciting fields as you create web applications that are used by real people and you can also make an impact on millions of lives if you got a chance to work on the next unicorn or big tech companies like Amazon, Google, or Facebook. if you want to learn web development in 2025 and become a web developer or looking for a web development job then you have come to the right place. Earlier, I have shared the best free web development courses and in this article, I am going to share the best web development courses for beginners. 

Top 5 Courses to learn Haskell Programming for Beginners in 2025 - Best of Lot

Hello friends! Today we are gonna review some of the best courses available for learning Haskell. So, are you guys wondering what is Haskell or where is it used. Do not worry, let's have a brief point on that.  Haskell is a language of programming that is solely functional. It's a general-purpose, statically typed language. In Haskell, all programs are expressed as mathematical operations with no side effects. It is mostly utilized in academics and research. You all must be wondering what does a Haskell developer gets in compensation and how's the demand. Remember that candidates for this position can expect to earn anywhere from $140,000 to $190,000, with a median pay of $170,000. And of course, that's just the beginning. 

Top 5 Free Courses to learn Design Patterns in Java and TypeScript in 2025 - Best of Lot

No matter how good or experienced a programmer is, they will run across issues when programming. As a number of problems arise in code, you may see some commonalities, and when you try to address them, you may detect certain patterns. The term "Design pattern" comes into play here. Design patterns, in basic words, are tried-and-true solutions to common programming problems. For instance, creational design patterns address object creation issues.

Top 5 Free Courses to Learn NFT (Non Fungible Tokens) in 2025 - Best of Lot

Hello folks, if you want to learn about NFT in 2025 or want to create and sell your own NFT and looking for free resources then you have come to the right place. Earlier, I have shared the best Blockchain courses, best Ethereum Courses, and best courses to learn NFT (Non-Fungible Tokens), but a lot but then many of you ask for free courses and I decided to put together a list of the best free NFT courses you can join to learn everything about NFT, create Non Fungible tokens and sell them on different platforms like OpenSea. Before we get into the best free courses that you can use to learn more about NFT, you need to know the basics.

Top 5 PowerPoint Courses for IT Professionals in 2025 - Best of Lot

Creating appealing graphics is an important part of giving a successful presentation. You need to deliver images that are clear and easy to grasp whether you're working on a new or old project. Beautiful visuals should be used in your presentation to keep your audience interested. That is why taking online classes on Microsoft Power Point is so important for improving your abilities. Microsoft PowerPoint is a widely used presentation software developed by Microsoft as part of the Microsoft Office suite. It allows users to create, edit, and display visually engaging slideshows that can incorporate text, images, graphics, animations, and multimedia elements.

Top 5 Apache Camel Online Courses for Java Developers in 2025 - Best of Lot

If you are looking to learn something new and awesome, like camel, you have come to the right place. Here, we will discuss some of the best courses available in the market currently which can really help you guys get on and learn Apache camel. Apache Camel is a black box that takes communications from one endpoint and forwards them to another. Messages may be handled or simply forwarded within the black box.

5 Best Ethical Hacking Courses for Beginners to Learn Online in 2025

Hello guys, if you want to become an ethical hacker in 2025 or a cyber security professional, you have come to the right place. In the past, I have shared the best Cyber Security courses, websites, and even best free courses to learn Ethical hacking, but my readers requested more, and today, I am going to share the best online courses to learn Ethical hacking in 2025 and become an Ethical Hacker and Cyber Security professional. We all know who a hacker is and what is hacking,   and how important cyber security is. But something is interesting about the origins of the word. The term 'hacker' was first coined to describe people who were experts at building mainframe systems, increasing their efficiency, and allowing the process of multi-tasking. 

Top 5 Online Courses to Learn Selenium for Automation Testing in 2025 - Best of Lot

Hello folks,   If you want to become an Automation tester or just want to learn Selenium for writing automation tests with Java in 2025 to add a new and in-demand skill to your resume and looking for online courses, then you have come to the right place. Earlier, I have shared free classes to learn Selenium Web Driver. This article will share the 5 best Selenium online courses for beginners and experienced Java  Programmers and automation testers. Selenium is a popular choice for those interested in automating tests done in web browsers. It is an open-source tool and a Java framework, which means that it is free to use, redistribute, and even you can change what you want to make the software available to anyone who uses it.

Top 5 Online Courses to Learn Artificial Intelligence (AI) for Beginners in 2025 - Best of Lot

Hello guys, Artificial Intelligence is one of the growing fields in technology, and many developers are trying to learn Artificial Intelligence to take their careers next level. If you are a Python developer and looking for the best courses to learn Artificial Intelligence with Python, you have come to the right place. In this article, I will share the best courses to learn AI basics and some hands-on courses to practice AI with the Python library. I first came across AI when DeepMind beat Garry Kasparov, one of the finest players of Chess. It was way back in the 1990s, and AI has come a long way. Now, Google is using the same DeepMind to reduce the electric bills of its Data Center by 40%, and Elon Musk is talking about Self driving cars.

Top 5 Courses to Learn Cyber Security Online in 2025 - Best of Lot

Hello folks, if you want to learn Cyber Security in 2025 and looking for the best online courses to learn Cyber Security to start your career, then you have come to the right place. Earlier, I have shared free Cyber Security courses and websites, and in this article, I am going to share the best Cyber Security online courses anyone can join to learn security essentials. These are also the best courses from popular online platforms like Udemy, Coursera, and Pluralsight and great resources to learn about Cyber Security, Ethical Hacking, Information Security, and much more. If you want to become a Cyber Security specialist, you should definitely check out these courses. 

Top 5 Online Courses to Learn Express.js in 2025 - Best of Lot

Hello guys, if you want to learn Express.js and looking for the best online courses then you have come to the right place. Earlier, I have shred best web development courses and mentioned Express.js, now of the leading backend node.js frameworks for JavaScript developers. In this article, I am going to share the best online courses to learn Express.js in 2025. But, before that, let's try to understand what is Express.js and are benefits of using Express.js for backend development in JavaScript. In the simplest of terms, Express is a flexible Node.js web application framework that has a robust set of features that can be used to develop web and mobile applications. It also facilitates the rapid development of Node-based web applications.

Coursera's Applied Data Science with Python Certification Review - Is it worth in 2025?

If you are thinking of joining Data Science with Python Specialization on Coursera but thinking about whether it's worth your time and money, you have come to the right place. Earlier, I have shared the best Coursera courses for Data Science, and today, I will review one of the most popular Data Science specializations on Coursera. If you have been learning online, then you may know that  Coursera is one of the giant platforms out there that offers courses in many different industries, from web development and IoT to business and self-development, and all those courses are created by major universities such as Michigan University and some companies like IBM which means you are in good hands when enrolling in some of their courses.

Top 5 Python Courses for Data Science and Machine Learning in 2025 - Best of Lot

We all know what Python is, right? It is a high-level, general-purpose programming language with enhanced readability. The syntax is also well-constructed and has an object-oriented approach. This will enable programmers to write clear and logical code for small and large projects. Data Science can be broadly defined as a field that extracts insights from structured and unstructured data using scientific methods and algorithms. These insights can then be applied across various domains and fields. It can be used for increasing sales, optimizing workflow, cash flow, etc.

Top 5 Big Data, Spark, and Hadoop Courses for Beginners in 2025 - Best of Lot

Hello Java programmers, if you want to learn Big Data and related technologies like Apache Hadoop, Spark, Hive, Flume, etc in 2025 and looking for the best resources like books, tutorials, and online courses then you have come to the right place. Earlier, I have shared the best free Big data courses and best courses to learn Spark but a lot of you asked me about the more comprehensive and up-to-date Big data course recommendations. So, I have come up with this list which contains the best-paid courses you can join to learn Big Data in 2025. Although the courses are not free, they are very affordable, particularly Udemy courses which you can get for just $10 on Sales. They are also very comprehensive, up-to-date, and trusted by millions of developers and probably the best resources to learn Big Data online in 2025. 

Top 5 Courses to Learn Angular for Web Development in 2025 - Best of Lot

Hello guys, if you want to learn Angular in 2025 and looking for the best Angular courses then you have come to the right place. In the past, I have shared many resources to learn and master Angular like the best Angular books as well as free courses to learn Angular but many of you asked me to share more comprehensive and in-depth Angular courses and here we are with the list of the best Angular online courses to learn in 2025. These are comprehensive, in-depth, and up-to-date Angular courses, curated from popular websites and online courses platforms like Udemy, Pluralsight, Coursera as well as interactive platforms like Educative. 

5 Best DP-900 Certification Courses and Practice Test for Azure Data Fundamentals Exam in 2025

The DP-900 certification, also known as the Microsoft Azure Data Fundamentals Certification, is perfect for people who are just starting to work with data on the cloud. This certification will help you build foundational knowledge in cloud data services with Microsoft Azure. Taking the DP-900 certification exam will have many benefits. It will give you a broad overview of how data works in the cloud. It will also help you test your knowledge of cloud data within the ambit of Microsoft Azure services.

Top 5 Free Udemy Courses for Google Cloud Professional Architect Certification [2025] - Best of Lot

Hello guys, if you are preparing for Google Cloud Professional Architect certification and looking for free online training courses, you have come to the right place. In the past, I have shared the best courses to learn Google Cloud and certification courses to pass cloud engineer, data engineer, and cloud architect certifications. Today, I will share free GCP Cloud Architect certification courses for beginners experienced cloud professionals. This is one of the most difficult and prestigious exams, similar ot the AWS Solution Architect and Azure Technology Architect (AZ-300) exam; once you pass this exam, you will have sufficient knowledge and skills to propose a Google cloud-based solution in-demand skill. 

Review - Is Data Science Specialization from John Hopkins on Coursera worth It?

Hello guys, if you are thinking of joining Data Science Specialization at John Hopkins University in Coursera but thinking about whether it's worth your time and money, you have come to the right place. Earlier, I have shared the best Coursera courses for Data Science,  Cloud Computing,  Machine Learning, Python Programming, and today, I will review one of the most popular Data Science specializations on Coursera, Data Science Specialization by John Hopkins University. While Coursera has many top-quality Data Science certifications, this is probably the most popular of them, given its offered by Johns Hopkins University in the USA. 

10 Best Coursera Web Development Courses and Projects for Beginners in 2024

Hello guys, if you are looking for the best web development courses and projects on Coursera to join in 2024, you have come to the right place. Earlier, I have shared the best Coursera courses to learn about Cloud Computing,  Software Development, and Data Science. Today, I will share the best Coursera courses and projects one can join to learn Full-stack Development and essential web development skills to become a professional web developer in 2024. The best thing about these Coursera courses and projects is that you can join them with Coursera Plus, which means you don't need to buy them individually. If you have a Coursera Plus subscription, you can enter all these courses without extra cost. 

Top 5 Free Coursera Courses for SQL and Database in 2024 - Best of Lot [UPDATED]

Hello guys, if you want to learn SQL and Database and looking for best free resources like books, online courses and websites then you have come tot he right place. Earlier, I have shared best SQL courses, SQL books, and best websites to learn SQL and in this article, I am going to share best free SQL courses from Coursera, one of the best place to learn technical skill from world's top university and companies online. While many people are familiar with Coursera courses and certifications then don't know that most of the Coursera courses can be taken for free-to-audit where you can watch them for free without enrolling on specialization or professional certification. Only thing is you don't have access to quizzes and exercise sand you don't get certificate but you can still learn from worlds' top trainers and instructors. 

Top 10 Free Git Courses for Programmers and DevOps in 2024 - Best of Lot

Hello guys, there is no doubt that Git is one of the most essential tool and skill for every programmer and Software developer. Gone are the days where different companies uses different version control like SVN, CVS, or TFS, now almost every company uses Git which has become the standard source repository and version control tool. That's why its important for every programmer to learn Git and it's not that easy. Git is a distributed version control system and there are things like remote repository, local repository, commit, pull, push, fetch, rebase, merge etc which can be confusing to many programmers and that's why I am going to share best free Git courses you can join to learn Git in 2024.

10 Tools Java Developers Should Learn in 2024 - (UPDATED)

Hello folks, we are in the first week of 2024, and many programmers have already started making a good process to their goals for 2024, which is very good, but if you are someone, who is still not sure what to learn in 2024, then you have come to the right place. In the past, I have shared 10 things Java developers to learn in 2024, and last week, I published the top 5 Java Frameworks to learn, but there is one topic that kept coming from my readers.  The question which I have received this week a couple of times from my fellow Java developers and readers is which tools Java programmers should learn in 2024? Or what are some excellent Java tools used in application development? And finally, what should I learn in 2024?

My Favorite Courses to learn React.js in Depth in 2024 - Best of Lot

Hello guys, if you want to learn React.js in 2024 and looking for the best resources like books, online courses, tutorials, and guides, then you have come to the right place. In the past, I have shared the best free React.js courses, best React books, websites, projects, and even a complete React.js Developer RoadMap and in this article, I am going to share the best online courses to learn React.js in 2024.  You've come to the correct spot if you're a web developer or someone who is passionate about web development and want to learn React or React JS, a popular JavaScript framework for developing a component-based user interface.

CodeCademy vs Datacamp vs Udemy? Which one to Join in 2024?

Hello guys, if you are looking to upskill yourself this year, want to learn new tech and programming skill, and want to join an online learning platform or are confused between Udemy, Codecademy, and Datacamp then you have come to the right place. In the past, I have reviewed Udemy, Pluralsight, and Educative and in this article, I am going to review Udemy, DataCamp, and Codecademy learning platforms based upon their strength and weaknesses, and learning styles. For most people, online education is one of the best approaches to achieving your goals, whether starting a new business or learning new programming skills and even negotiation in general. 

Top 5 Courses to learn UML for Software Design and Development in 2024 - Best of Lot

Hello friends, we are here again today for another exciting topic to discuss. But, today we are not gonna discuss something which is related to Java or any other language or spring boot. Today we are gonna discuss something which is immensely practical and very important skill if you want to grow as programmer and become a tech lead or Software architecture. Yes, you guessed it right, today we are going to talk about UML (Unified Modeling Language). Modeling is a process to communicate your design which is in your mind to other people in your team like developers, architect via diagram. This is one of the most important skill if you want to become Software architect in 2024. 

Top 6 Courses to Learn Neural Networks and Deep Learning in 2024 - Best of Lot

Hello folks, if you are looking for the best online courses to learn Deep Learning and Neural networks in 2024 then you have come to the right place.  In the past, I have shared the best Data Science courses, best Data Science websites, and best Machine Learning courses, and in this article, I am going to share the best online courses to learn Data Science and Machine Learning for Beginners. I have hoped a lot of online platforms and websites to find deep learning courses which not only cover essential concepts but also cover them in a way that can be easily understood, but most of the courses fall short of it. Some courses have great content they cover every possible concept but they are very hard to understand, and in some courses where you have engaging and easy to understand content then they shy away from covering advanced topics. 

Top 5 Online Courses to Learn MySQL Database in 2024 - Best of Lot

Hello guys, if you want to learn MySQL and SQL in 2024 and looking for the best resources like online courses, tutorials, and books then you have come to the right place. Earlier, I have shared the best SQL courses, books, and SQL interview questions and today, I am going to share the best online courses to learn MySQL in 2024. As you most probably know, MySQL is one of the big players in the Big Data technological ecosystem. It is one of the most popular databases in the world and has wide-ranging capabilities. It is used in a wide variety of industries, and so every half-decent programmer should at least have a basic understanding of MySQL.

5 Best Python Tutorials For Beginners in 2024

Hello guys, if you want to learn Python programming language in 2024 and looking for best online resources like tutorials, courses, books, projects and websites then you have come to the right place. Earlier, I have shared best Python courses, both free and paid, as well as best Python books, projects, and even Python interview questions for job interviews and today, I Am going to share best Python tutorials for beginners in 2024. We all know that a computer can work without a system or program to tell them what to do, which means you need to learn a language to program it and how it works. There are a lot of languages to learn, but python is one of the high-level and easy to learn and start. This post will help you get the best resource to get started using the python language.

6 React.js Performance Tips Every Web Developer Should Learn

Hello guys, if you are working in a React.js application and looking for best tips to improve performance of your react application then you have come to the right place. Performance is one of the biggest reasons why React.js has gained immense popularity in the last five years. React uses virtual DOM to boost performance. Though React does what it has to do to increase the performance behind the scenes, the developer has to ensure a top-quality user experience. In this article, we will discuss some of the ways which can be used to optimize the performance of a React application.

Top 5 Programming languages for Backend development in 2025

Hello folks, if you are wondering what are the best programming language for backend development then you have come to the right place. Earlier, I have shared the best programming languages for beginners and today, I am going to share best programming language for backend development. My choices are based upon my own experience as well as what I have seen in job markets and other companies. To end the suspense, Java is the best programming language for backend development. It is used by both big and small companies for creating solid and scalable backend which can withstand high volume. 

Top 20 Mathematics and Statistics Interview Questions and Answers

Hello guys, if you are preparing for Data Engineer or Data Scientist Interview then you must prepare for Mathematics and Statistics questions, and if you are looking for Maths and Statistics questions then you have come to the right place. In the past, I have shared multiple Data Science Interview Questions and Machine Learning Interview questions and in this article, I am going to share 20 Mathematics and Statistics questions which you can prepare for interview. If you have used Statistics and Maths recently then you are most likely to answer these questions but if you are not you can always join these Maths and Statistics courses to learn more about them and refresh you knowledge before interviews. 

Difference between Chef and Ansible in DevOps

Hello guys, Ansible and Chef are two popular configuration management tool which are very important in this world of DevOps. What is difference between Ansible, Chef, and Puppet is also a common questions for DevOps and senior Java developer who are also responsible for setting their server and installing application. Earlier, I have shared best DevOps Courses and best online courses to learn Ansible and Chef and in this article, we will go through the difference between two widely recognized configurations management tools used by DevOps engineers i.e. Chef and Ansible.

How Long Does It Take To Learn Data Science in 2024?

Hello guys, if you want to become a Data Scientist in 2024 but wondering how long it take to learn all the Data Science skills required to become to a Data Scientist then you are at the right place. Earlier, I have shared best Data Science courses and Data Science Interview Questions for Job Interviews and in this article, I will talk about the time it take to become a Data Scientist in 2024.  Data science is a simple term, is preparing the data for analysis starting by cleaning, aggregating, and manipulating data for this action using scientific methods, statistics, machine learning algorithms to extract insights from this data and power business decisions.

7 Free 1Z0-803 and 1Z0-804 Sample Questions - OCAJP 7 and OCPJP 7 Mock Exams (Oracle Certified Associate Java SE 7 Programmer 1 and 2 )

In this article, I am going to share some OCAJP 7 or 1Z0-803 exam and OCPJP 7 or 1Z0-804 certification sample questions and mock exam for practice which are completely free and available online. The sample questions are not good enough for thorough practice but you can use these mock tests to get an idea of what to expect in the actual exam. Many of the free mock questions are actually the samples questions provided by professional certification exam simulator provided e.g. Whizlabs, Enthuware, MyExamCloud etc, which are samples of their full-length exam simulators. 

Top 5 OCPJP7 books for 1Z0-804 and 1Z0-805 Exam - Java SE 7 II Certification

You may know that from Java SE 7 onwards, you need to pass two exams to become a certified Java developer e.g. OCAJP and OCPJP. The first one is an associate-level exam and it's rather easy to pass, but the second one OCPJP is a professional level exam and it's much harder than OCAJP. If you are giving the Oracle Java certification then you should know that you need to pass OCAJP before taking the OCPJP exam. This is also the second part of an article about books to prepare Java SE 7 certifications. In the first part, I have shared the best books for OCAJP7 and in this part, I am going to share the best books for the OCPJP7 exam.

How to call REST API an send HTTP GET and POST Request using cURL command in Linux? Example Tutorial

The curl or cURL command of Linux is a compelling and versatile command which allows you to send sophisticated HTTP requests right from your Linux command line window. You can use the cURL command to test your RESTful Web Services by sending GET and POST requests, doing authentication, saving a cookie in the file, etc. The curl command is, in fact, the go-to tool for many Java and Spring developers working in web applications and consuming data from the secured RESTful Web Services. Still, you can also use it to test your simple REST Web APIs without security. I have used it many times to check if our Web service is up or not, or is there any error while accessing those services.