Node.js
- Engineering
- Last Updated: December 17, 2024
- Anush DSouza
The Heroku CLI is a vital tool for developers, providing a simple, extensible way to interact with the powerful features Heroku offers. We understand the importance of keeping the CLI updated to enhance user experience and ensure stability. With the release of Heroku CLI v10, we’re excited to introduce key changes that enhance the user experience and improve compatibility with the next-generation Heroku platform.
Heroku CLI v10 introduces several breaking changes, updates for Fir (the next-generation Heroku platform), and overall performance improvements. Here’s a breakdown of the key features:
Node.js 20 Upgrade:
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- Ecosystem
- Last Updated: September 30, 2024
- Felix Rieseberg
As maintainers of the open source framework Electron, we try to be diligent about the work we take on. Apps like Visual Studio Code, Slack, Notion, or 1Password are built on top of Electron and make use of our unique mix of native code and web technologies to make their users happy. That requires focus: There’s always more work to be done than we have time and resources for. In practice, that means that we don’t want to spend time thinking about the server infrastructure for the project — and we’re grateful for the support we receive from Heroku, …
- Engineering
- Last Updated: July 19, 2024
- Colin Casey
What is pnpm?
Pnpm is a fast, disk-efficient Node package manager used as an alternative to npm. The Heroku Node.js buildpack now supports pnpm. Early Node.js application owners who’ve taken advantage of pnpm support have seen 10-40% faster install times compared to NPM on Heroku deployments. It’s an excellent choice for managing packages in the Node.js ecosystem because it:
Minimizes disk space with its content-addressable package store.
Speeds up installation by weaving together the resolve, fetch, and linking stages of dependency installation.
This post will introduce you to some of the benefits of the pnpm package manager and walk …
- Engineering
- Last Updated: April 29, 2024
- Julián Duque
If you’re an API developer working with Node.js, then you’re probably familiar with Express. But have you tried out the Fastify framework to build with power, speed, and convenience? In this walkthrough, we build a full-featured, easy-to-consume API with Fastify. And we deploy it to the cloud with ease. We show you how to:
Get started working with Fastify to build an API
Implement API authentication by using a JSON web token (JWT)
Use Fastify’s Swagger plugins to generate an OpenAPI specification
Consume the OpenAPI specification with Postman, giving you an API client that can send requests seamlessly to your …
- Engineering
- Last Updated: March 28, 2024
- Julián Duque
How to connect your GPT on OpenAI to a backend Node.js app
Late in 2023, OpenAI introduced GPTs, a way for developers to build customized versions of ChatGPT that can bundle in specialized knowledge, follow preset instructions, or perform actions like reaching out to external APIs. As more and more businesses and individuals use ChatGPT, developers are racing to build powerful GPTs to ride the wave of ChatGPT adoption.
If you’re thinking about diving into GPT development, we’ve got some good news: Building a powerful GPT mostly involves building an API that handles a few endpoints. And in …
- Engineering
- Last Updated: January 30, 2024
- Julián Duque
How to Build and Deploy a Node.js App That Uses OpenAI’s APIs
Near the end of 2023, ChatGPT announced that it had 100M weekly users. That’s a massive base of users who want to take advantage of the convenience and power of intelligent question answering with natural language.
With this level of popularity for ChatGPT, it’s no wonder that software developers are joining the ChatGPT app gold rush, building tools on top of OpenAI’s APIs. Building and deploying a GenAI-based app is quite easy to do—and we’re going to show you how!
In this post, we walk through how to …
- Engineering
- Last Updated: December 23, 2020
- Danielle Adams
In true JavaScript fashion, there was no shortage of releases in the JavaScript ecosystem this year. This includes the Yarn project’s release of Yarn 2 with a compressed cache of JavaScript dependencies, including a Yarn binary to reference, that can be used for a zero-install deployment.
Yarn is a package manager that also provides developers a project management toolset. Now, Yarn 2 is now officially supported by Heroku, and Heroku developers are able to take advantage of leveraging zero-installs during their Node.js builds. We’ll go over a popular use case for Yarn that is enhanced by Yarn 2: using workspaces …
- Life
- Last Updated: June 03, 2024
- Danielle Adams
JavaScript turns 25 years old today. While it’s made an impact on my career as a developer, it has also impacted many developers like me and users around the world. To commemorate our favorite language, we’ve collected 25 landmark events that have shaped the path of what the JavaScript ecosystem looks like today.
In 1995, Brendan Eich, a developer at Netscape, known for their Netscape browser, was tasked with building a client-side scripting language that paired well with Java. While it may not be the language that you know and love today, JavaScript was written …
- Engineering
- Last Updated: May 14, 2024
- Julián Duque
There are always challenges when it comes to debugging applications. Node.js' asynchronous workflows add an extra layer of complexity to this arduous process. Although there have been some updates made to the V8 engine in order to easily access asynchronous stack traces, most of the time, we just get errors on the main thread of our applications, which makes debugging a little bit difficult. As well, when our Node.js applications crash, we usually need to rely on some complicated CLI tooling to analyze the core dumps.
In this article, we'll take a look at some easier ways to debug your …
- Engineering
- Last Updated: December 18, 2019
- Julián Duque
This blog post is adapted from a talk given by Julián Duque at NodeConf EU 2019 titled "Let it crash!."
Before coming to Heroku, I did some consulting work as a Node.js solutions architect. My job was to visit various companies and make sure that they were successful in designing production-ready Node applications. Unfortunately, I witnessed many different problems when it came to error handling, especially on process shutdown. When an error occurred, there was often not enough visibility on why it happened, a lack of logging details, and bouts of downtime as applications attempted to recover …
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