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Baeldung Author

Tapan Avasthi

Tapan Avasthi is an experienced Senior Engineer with almost a decade of experience in backend development in the software industry. They have a solid inclination to automate the tedious parts of software development and possess an opinionated view on writing elegant, clean code regardless of the technology stack. Additionally, they have ample experience working with Java and Spring ecosystems and a working knowledge of advanced DevOps concepts.

Here's what I've written (so far):

Baeldung on Java

All
Reactive (3)
Spring Boot (2)
Networking (2)
Logging (2)
Java Array (2)
Data (2)
Testing (1)
Spring WebFlux (1)
Spring Web (1)
Spring (1)
NoSQL (1)
Java String (1)
Java Numbers (1)
JSON (1)
DevOps (1)

Conditional Statements in Spring WebFlux Reactive Flow

Filed under Reactive, Spring WebFlux

Learn how to implement conditional logic in Spring WebFlux reactive flows.

Guide to Choosing Between Protocol Buffers and JSON

Filed under JSON

Learn about the differences between JSON and Protocol Buffers in their usage as data serialization formats.

Getting Arithmetic Results in the Modulo (10^9 + 7) Format

Filed under Java Numbers

Learn how to perform modulo-arithmetic operations in Java with 10^9 + 7 as an example format for the modulus.

concat() vs. merge() Operators in RxJava Observables

Filed under Reactive

Learn about the difference between concat and merge when working with RxJava.

Find Missing Number From a Given Array in Java

Filed under Java Array

Learn multiple approaches to finding a single missing number from an array in the integer range [1-N].

Get a Continuous Stream of Logs for Pods in Kubernetes

Filed under DevOps, Logging

Learn how to use the kubectl logs command to get a continuous stream of logs from the Kubernetes pods.

Converting an int[] to HashSet in Java

Filed under Java Array

Learn multiple approaches to converting an int[] to a HashSet in Java.

Guide to Sending Post Request via cURL With Data From a File

Filed under Networking

Learn how to send data from files using cURL with the –data and –form options.

How to Post Raw Body Data With cURL

Filed under Networking

Learn how to use cURL for sending raw body data over a POST request.

Baeldung on Linux

All
Text Processing (12)
File Editing (12)
Scripting (11)
File Searching (10)
Files (9)
Web (6)
Administration (5)
Processes (3)
File Viewing (2)
Docker (2)
File Permissions (1)

How to Pipe Data to cURL POST Requests

Filed under Web

Learn how to pipe data to cURL POST requests.

Guide to the nohup Command in Linux

Filed under Processes

Learn how to use the nohup command to ensure a process continues to run in the background in Linux.

How to Delete a File Using Vim

Filed under File Editing

Learn how to delete a file while inside a Vim session in Linux.

Guide to the pgrep Command

Filed under Administration, Processes

Learn how to use the pgrep command in Linux to search for running processes.

How to Open and Position Terminal in Vim

Filed under File Editing

Learn how to use a terminal inside a Vim session, opening and positioning as required.

How to Add New Columns to a CSV File

Filed under File Editing, Text Processing

Learn how to use Linux command line utilities to add new columns to a CSV file.

How to Check for Null Fields in a CSV File

Filed under File Searching

Learn how to search for rows with null fields in a CSV file in Linux.

How to Grep a Pattern Containing a Tab Character

Filed under File Searching

Explore multiple approaches to grep a pattern containing a tab character in Linux.

Deleting a Specific Column in a File Within Vim

Filed under File Editing

Learn how to delete a specific column in a file in Vim, visual block mode, group substitution, external command execution, and macro recording.

Baeldung on Kotlin

All
Kotlin Numbers (4)
Kotlin Collections (4)
Kotlin Strings (3)
Kotlin Dates (3)
Kotlin Arrays (3)
Libraries (1)
Kotlin Concurrency (1)
Algorithms (1)

Guide to the HexFormat API

Filed under Kotlin Strings

Learn how to use the HexFormat API in Kotlin to parse and format hexadecimal values.

Guide to Reading YAML Content in Kotlin

Filed under Libraries

Learn how to read YAML content from a file in Kotlin using two popular libraries.

Guide to Merging Two Maps in Kotlin

Filed under Kotlin Collections

Learn how to combine the key-value pairs of two maps into a single one in Kotlin.

Check if a Number Can Be Expressed as Sum of Two Prime Numbers in Kotlin

Filed under Kotlin Numbers

Explore multiple approaches to checking if a number can be expressed as the sum of two prime numbers.

How to Calculate the Difference Between Two Time Periods in Kotlin

Filed under Kotlin Dates

Learn how to find the difference between two durations or time points in Kotlin.

How to Convert Milliseconds to Minutes and Seconds in Kotlin

Filed under Kotlin Dates

Learn how to convert between units of duration in Kotlin.

Removing an Entry From a Kotlin Map While Iterating Over It

Filed under Kotlin Collections

Learn how to remove a map entry using on a condition on the key during iteration.

Count the Number of Vowels and Consonants in a Sentence in Kotlin

Filed under Kotlin Strings

Learn different ways to count the number of vowels and consonants in a sentence in Kotlin.

Baeldung on Ops

All
Git (9)
DevOps (8)
Kubernetes (3)
Docker (3)
Logging (2)
Deployment Tools (2)
Jenkins (1)

How to Get the Title of Pull Request in GitHub Actions?

Filed under Git

Learn multiple ways of getting the title of a pull request.

Create Pull Request With GitHub Actions

Filed under Git

Explore different ways to create a pull request using GitHub Actions, including the GitHub CLI, the REST API, and the peter-evans/create-pull-request action.

Guide to Getting the Commit Message in GitHub Actions

Filed under DevOps, Git

Learn how to get the commit message in GitHub actions.

Guide to Getting Commit SHA in GitHub Actions

Filed under DevOps, Git

Learn how to get the commit SHA in GitHub actions.

Guide to Getting Commit SHA in GitHub Actions

Filed under DevOps, Git

Learn how to get the commit SHA in GitHub actions.

How to Push Changes to a Repository from a GitLab CI Pipeline

Filed under Git

Learn how to push code changes to a GitLab repository.

Guide to Using GitLab CI to Run Tests Locally

Filed under DevOps

Learn how to speed up development by using GitLab CI to run tests locally and not on a remote build agent.

Guide to Using cURL in gitlab-ci.yml

Filed under Git

Learn how to use cURL commands to make HTTP requests in a GitLab CI pipeline.

Guide to Passing GitLab Artifacts to Another Stage

Filed under DevOps

Learn how to pass artifacts from one GitLab stage to another.