How-Tos

How to create AI agents with Neo4j Aura Agent

Neo4j Aura Agent is an end-to-end platform for creating agents, connecting them to knowledge graphs, and deploying to production using low-code and autogeneration tools. Let’s dive in.

By Zach Blumenfeld

Mar 19, 202610 mins

DatabasesDevelopment ToolsGenerative AI

The best new features in C# 12

From primary constructors and collection expressions to default lambda parameters, C# 12 has many new features that simplify building modern, flexible applications.

By Joydip Kanjilal

Dec 14, 2023 8 mins

C# Libraries and Frameworks Microsoft .NET

SQL unleashed: 7 SQL mistakes to avoidPostgreSQL

SQL is a convenient way to manage and query your data, but badly written queries can tie up your database. Here are seven common SQL traps and how to avoid them.

By Serdar Yegulalp

Dec 13, 2023 4 mins

Analytics Databases SQL

Intro to JSX: HTML that does JavaScript

Love it or loathe it, JSX has made a big impact on front-end engineering. Here's a code-first intro to the HTML-based JavaScript templating language.

By Matthew Tyson

Dec 13, 2023 8 mins

HTML JavaScript Web Development

When to use abstract classes vs. interfaces in Java

Abstract classes and interfaces in Java serve fundamentally different purposes. Learn the differences between these Java language elements and how to use them in your programs.

By Rafael del Nero

Dec 6, 2023 10 mins

Java Programming Languages Software Development

The best new features in Angular 17: A kinder, faster Angular

Featuring a slew of enhancements, Angular 17 makes it harder than ever to pick a front-runner among JavaScript frameworks.

By Matthew Tyson

Dec 6, 2023 8 mins

Development Tools JavaScript Software Development

Java’s Simple Web Server: Static HTTP servers made easy

Java 18's Simple Web Server lets you use a command-line tool or API to host files and more. Here's how it works.

By Matthew Tyson

Dec 4, 2023 8 mins

Java Software Development

Implement authorization for Swagger in ASP.NET Core

Swagger makes it easy to document APIs, and Swashbuckle makes it easy to use Swagger in ASP.NET Core. Here’s how to implement basic authentication and authorization for your Swagger UI.

By Joydip Kanjilal

Nov 30, 2023 6 mins

Libraries and Frameworks Microsoft .NET Web Development

Get started with Java’s new structured concurrency model

Java has a powerful new concurrency model, and it works with both traditional and virtual threads. Here's a first look at structured concurrency.

By Matthew Tyson

Nov 29, 2023 10 mins

Java Software Development

How to implement JWT authentication in ASP.NET Core

It’s easy to secure minimal API endpoints in ASP.NET Core using JSON Web Tokens for authentication and authorization. Just follow these steps.

By Joydip Kanjilal

Nov 28, 2023 10 mins

C# Microsoft .NET Web Development

How to write reusable Java code

Maximizing code reuse in your Java programs means writing code that is easy to read, understand, and maintain. Here are eight ways to get started.

By Rafael del Nero

Nov 23, 2023 12 mins

Java Software Development

How to measure API performance in ASP.NET Core

Take advantage of MethodTimer.Fody to measure the execution speed of your APIs and keep your ASP.NET Core applications running smoothly.

By Joydip Kanjilal

Nov 16, 2023 6 mins

C# Microsoft .NET Web Development

Project Loom: Understand the new Java concurrency model

Project Loom massively increases resource efficiency while preserving backward compatibility with Java threads. Here's a look at Loom and the roadmap ahead.

By Matthew Tyson

Nov 15, 2023 9 mins

Java Programming Languages Software Development

How to use the specification design pattern in C#

Take advantage of the specification design pattern in C# to improve the modularity, maintainability, and reusability of your source code.

By Joydip Kanjilal

Nov 9, 2023 6 mins

C# Libraries and Frameworks Microsoft .NET

Intro to virtual threads: A new approach to Java concurrency

Virtual threads take the responsibility for allocating system resources out of your application code and into the JVM. Here's a first look at virtual threads in Java 21.

By Matthew Tyson

Nov 8, 2023 8 mins

Concurrency Java Programming Languages

How to use IAsyncEnumerable in C#

Learn how to use IAsyncEnumerable in C# to easily filter, aggregate, transform, project, or otherwise process continuous streams of data asynchronously.

By Joydip Kanjilal

Nov 2, 2023 5 mins

Libraries and Frameworks Microsoft .NET Web Development

Building a Q&A app with LangChain and Google PaLM 2

We can dramatically increase the accuracy of a large language model by providing it with context from custom data sources. LangChain makes this integration easy.

By Janakiram MSV

Oct 30, 2023 4 mins

Artificial Intelligence Generative AI Google Cloud Platform

How to create SOAP services in ASP.NET Core

Take advantage of SoapCore to create SOAP services in ASP.NET Core and support data exchange with other systems.

By Joydip Kanjilal

Oct 26, 2023 6 mins

C# Microsoft .NET Web Development

6 generative AI Python projects to run now

Get a hands-on introduction to generative AI with these Python-based coding projects using OpenAI, LangChain, Matplotlib, SQLAlchemy, Gradio, Streamlit, and more.

By Sharon Machlis

Oct 26, 2023 20 mins

Artificial Intelligence Generative AI Python

Using JavaScript’s built-in objects

Built-in JavaScript objects and functions are ones you'll use all the time. Here's how to use Object, JSON, String, Math, Date, and console in your JavaScript programs.

By Matthew Tyson

Oct 25, 2023 8 mins

JavaScript Software Development

How to use structured concurrency in C#

Structured concurrency offers a more organized and more intuitive way of managing the lifetimes of asynchronous tasks. Here’s how to take advantage of it in C#.

By Joydip Kanjilal

Oct 19, 2023 6 mins

C# Libraries and Frameworks Microsoft .NET

Intro to JSON-LD: JSON for the semantic web

JSON-LD extends JSON to include linking information. Here's how it could make JSON a top-tier player in hypermedia and the semantic web.

By Matthew Tyson

Oct 18, 2023 8 mins

Software Development Web Development

How to use Google’s PaLM 2 API with LangChain

The advantages of LangChain are clean and simple code and the ability to swap models with minimal changes. Let’s try LangChain with the PaLM 2 large language model.

By Janakiram MSV

Oct 17, 2023 4 mins

Artificial Intelligence Generative AI Google Cloud Platform

How to use TinyIoC in ASP.NET Core

TinyIoC is a lightweight and fast inversion of control container that makes dependency injection simple and easy. Here’s how to take advantage of it in ASP.NET Core applications.

By Joydip Kanjilal

Oct 12, 2023 6 mins

Libraries and Frameworks Microsoft .NET Web Development

Intro to Hyperscript: Rethinking JavaScript

Hyperscript is a newer language for handling common scripting needs on the JavaScript front end. You can use it by itself or in tandem with HTMX.

By Matthew Tyson

Oct 11, 2023 9 mins

JavaScript Programming Languages Software Development

How to implement in-memory caching in ASP.NET Core

You can take advantage of the decorator design pattern to add in-memory caching to your ASP.NET Core applications. Here’s how.

By Joydip Kanjilal

Oct 5, 2023 9 mins

Libraries and Frameworks Microsoft .NET Web Development

Recharts: Intro to JavaScript charting

A good charting library makes all the difference when adding visual data to your JavaScript apps. Recharts is one of the better ones, built just for React.

By Matthew Tyson

Oct 4, 2023 11 mins

JavaScript Libraries and Frameworks Software Development

Build an API gateway using YARP in ASP.NET Core

Take advantage of an API gateway to provide a single point of entry to your back-end services and keep your services secure. YARP makes it easy.

By Joydip Kanjilal

Sep 28, 2023 6 mins

Libraries and Frameworks Microsoft .NET Web Development

Make Java fast! Performance tuning Java

Learn how to optimize JVM and JIT compiler performance for better execution speed, memory usage, and resource utilization in your Java applications—and how to check your results.

By Rafael del Nero

Sep 21, 2023 13 mins

Devops Java Software Development

Intro to HTMX: Dynamic HTML without JavaScript

HTMX is the HTML extension syntax that replaces JavaScript with simple markup. It could change the course of web development.

By Matthew Tyson

Sep 20, 2023 9 mins

HTML JavaScript Web Development

Use TensorFlow to predict Bitcoin prices

Here's your chance to use TensorFlow with JavaScript. Train a neural network to predict the rise and fall of Bitcoin prices.

By Matthew Tyson

Sep 13, 2023 9 mins

Development Tools JavaScript Libraries and Frameworks

Intro to Hapi: The Node.js framework

Hapi is a Node.js framework that features a high-quality code stack, powerful configuration, and dialed-in extensibility—all without added dependencies. Let's take Hapi for a spin.

By Matthew Tyson

Sep 6, 2023 8 mins

JavaScript Libraries and Frameworks Software Development

How to improve API security in ASP.NET Core

Take advantage of authentication and authorization, API keys, rate limiting, CORS, API versioning, and other recommended practices to build secure and robust APIs in ASP.NET Core.

By Joydip Kanjilal

Aug 31, 2023 6 mins

C# Microsoft .NET Web Development

How to map object relationships using Dapper in ASP.NET Core

Take advantage of Dapper to create one-to-one, one-to-many, and many-to-many entity relationships in your ASP.NET Core applications.

By Joydip Kanjilal

Aug 24, 2023 8 mins

C# Microsoft .NET Web Development

Intro to gRPC: The REST alternative

gRPC is a high-performance binary protocol for remote procedure calls on virtually any platform. Here's a hands-on intro to using gRPC with Node.

By Matthew Tyson

Aug 23, 2023 8 mins

Development Tools Software Development

How to improve data access performance in EF Core

Take advantage of these 10 strategies to improve data access performance when using Entity Framework Core in your data-driven .NET applications.

By Joydip Kanjilal

Aug 17, 2023 11 mins

C# Microsoft .NET Web Development

Prisma.js: Code-first ORM in JavaScript

Get a hands-on tour of the leading JavaScript object-relational mapping tool, which you can use with MongoDB and traditional databases.

By Matthew Tyson

Aug 16, 2023 12 mins

Databases Development Tools JavaScript

How to use Fluent Assertions in C#

When unit tests fail, they should clearly explain why. Take advantage of the Fluent Assertions library to write unit test methods that are simple, readable, concise, and expressive.

By Joydip Kanjilal

Aug 10, 2023 7 mins

Libraries and Frameworks Microsoft .NET Software Development

Generative AI with LangChain, RStudio, and just enough Python

LangChain is one of the hottest platforms for working with LLMs and generative AI—but it's typically only for Python and JavaScript users. Here's how R users can get around that.

By Sharon Machlis

Aug 3, 2023 19 mins

Generative AI Python R Language

Intro to Nest.js: The higher-order JavaScript and TypeScript server

Nest.js shines for its modern programming paradigms and modular approach to server-side JavaScript and TypeScript. Here's a hands-on intro to Nest.

By Matthew Tyson

Aug 2, 2023 9 mins

JavaScript Libraries and Frameworks Software Development

Ease into similarity search with Google’s PaLM API

Learn how to use Google Cloud Vertex AI and the PaLM 2 large language model to create text embeddings and search text ranked by semantic similarity.

By Janakiram MSV

Jul 31, 2023 6 mins

Generative AI Google Cloud Platform Machine Learning

6 performance tips for Entity Framework Core 7

Take advantage of these EF Core performance tips to speed up data access in your .NET applications.

By Joydip Kanjilal

Jul 27, 2023 8 mins

C# Databases Microsoft .NET

Reactive programming with RxJava

ReactiveX is one of the most established frameworks for reactive programming, and RxJava is its Java-based implementation. Let's see what we can do with RxJava.

By Matthew Tyson

Jul 26, 2023 9 mins

Java Libraries and Frameworks Software Development

6 ways to find better content on Mastodon

The more you know about Mastodon networking, the better your search experience will be. Here's how to promote and find user content on Mastodon.

By Sharon Machlis

Jul 20, 2023 10 mins

Emerging Technology Open Source Technology Industry

How to handle null values in C#

Null pointer exceptions are no fun. You can avoid them and keep your code clean and maintainable by using these techniques to elegantly handle null values in C#.

By Joydip Kanjilal

Jul 20, 2023 5 mins

C# Libraries and Frameworks Microsoft .NET

How to use Python’s py launcher for Windows

Take control of multiple Python installations in Windows with the py launcher, available as part of a standard Python installation.

By Serdar Yegulalp

Jul 19, 2023 5 mins

Development Tools Python Small and Medium Business

Build a chatbot with Google’s PaLM API

Using the PaLM 2 large language model available in Google Cloud Vertex AI, you can create a chatbot in just a few lines of code. These are the steps.

By Janakiram MSV

Jul 17, 2023 4 mins

Artificial Intelligence Generative AI Machine Learning

How to use GPT as a natural language to SQL query engine

Generative AI output isn’t always reliable, but here’s how to improve your code and queries created by the technology behind ChatGPT, and prevent sending out sensitive data.

By Sharon Machlis

Jul 13, 2023 10 mins

Generative AI R Language SQL

How to use the is and as operators in C#

Take advantage of the is and as operators in C# to perform casting operations elegantly and write code that is well structured, concise, and maintainable.

By Joydip Kanjilal

Jul 13, 2023 6 mins

C# Libraries and Frameworks Microsoft .NET