Golang

Building a CRUD API with Go, Gin, MySQL and GORM

In this tutorial, we will create a simple CRUD (Create, Read, Update, Delete) API using Go with the Gin web framework, MySQL for database management, and GORM as the ORM (Object-Relational Mapping) library.

Checking If a File Exists in Go

In Go, determining whether a file exists is a common task that can be performed using the os package. This functionality is essential for various scenarios, such as validating file paths, managing file operations, and implementing error handling.

Checking if a Map Contains a Key in Go

Maps are a powerful data structure in Go, allowing you to associate keys with values for efficient lookup and retrieval. One common operation when working with maps is checking if a specific key exists.

Concatenating Multiple Slices in Go

In Go, slices are a versatile data structure that can be used to store collections of elements. Concatenating slices—i.e., combining multiple slices into one—can be useful in various scenarios, such as merging data or combining results from different sources.

Converting a String to an Integer in Go

In Go, converting a string to an integer is a common operation, especially when dealing with user input or data read from external sources.

Converting an Integer to a String in Go

In Go, converting an integer to a string is a common task that can be accomplished using several methods. Understanding these methods is crucial for working with data, formatting output, or building more complex applications.

Deploying a Simple Go Web Server as a Systemd Service

In this tutorial, we’ll walk through the process of creating a simple web server in Go, compiling it into a binary, and deploying it as a systemd service on a Linux machine.

Efficiently Concatenating Strings in Go

String concatenation is a common operation in many Go applications, from generating dynamic content to constructing complex queries. However, it’s essential to use efficient methods to avoid performance issues, especially in scenarios involving a large number of strings.

Efficiently Queueing Goroutines in Go

Goroutines are a fundamental part of concurrent programming in Go, allowing you to execute multiple tasks simultaneously. However, managing goroutines, especially when dealing with a high volume of concurrent tasks, can be challenging.

Generating a Random String in Go

Generating random strings is a common requirement in many applications, such as for generating unique identifiers, tokens, or random passwords. Go provides several methods to generate random strings, leveraging the math/rand and crypto/rand packages.

Getting a Slice of Keys from a Map in Go

In Go, maps are a powerful data structure that allows you to associate keys with values. Sometimes, you may need to retrieve just the keys from a map as a slice.

Handling Optional Parameters in Go

Go is known for its simplicity and explicitness, and it does not support optional parameters in the way some other languages do.

Interfaces in Go

Interfaces are a powerful feature in Go, allowing you to define methods that a type must implement without specifying how these methods are implemented.

Pretty-Printing JSON in Go

JSON (JavaScript Object Notation) is a popular format for data interchange. While JSON is typically compact and easy to parse, it can sometimes be difficult to read when it is all on one line.

Representing Enums in Go

In many programming languages, enums (short for enumerations) are a powerful feature used to define a set of named values. Go does not have a built-in enum type, but you can represent enums using constants and custom types.

Setting Up Nginx as a Reverse Proxy for a Go Web Server

In this tutorial, we’ll configure Nginx to act as a reverse proxy for a Go web server. This setup allows Nginx to handle incoming HTTP requests and forward them to the Go application running on a different port (8080 in this case).

Time Manipulation in Go

Time manipulation is a crucial aspect of many applications, whether you’re dealing with timestamps, scheduling tasks, or calculating durations. Go’s time package provides robust support for working with time and dates.

Understanding Loops in Go

Loops are a fundamental concept in programming, allowing you to repeat a block of code multiple times. In Go, the loop structure is simple yet powerful, providing the flexibility to handle various repetitive tasks with ease.

Understanding Maps in Go

Maps are a powerful and versatile data structure in Go, allowing you to store key-value pairs for efficient data retrieval. If you’re coming from other programming languages, you might recognize maps as dictionaries, hashes, or associative arrays.

Understanding Structs in Go

In Go, a struct (short for “structure”) is a user-defined type that groups together variables under a single name. These variables, known as “fields,” can be of different types.

Working with Arrays in Go: Adding, Deleting, Searching, Updating, sorting and Filtering Elements

In Go, working with arrays and slices of structs is a fundamental skill that can be applied across various applications. This guide demonstrates how to perform common operations on an array of structs.