Engineering
- Engineering
- Last Updated: April 09, 2024
- Mars Hall
For developers and businesses offering a web-based product, automated browser testing is a critical tool to ensure continuous delivery of a reliable service. Developers write browser tests by scripting actions against a real browser, simulating real usage by navigating, selecting, and making assertions about web pages and their document elements.
In this post, we introduce a new community buildpack that helps with automated browser testing. The new buildpack resolves installation reliability problems in the existing Chrome browser buildpacks for Heroku apps.
Developers can manually run browser tests on their machines…
- 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…
- 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!
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- Engineering
- Last Updated: June 03, 2024
- Valerie Woolard
Introducing pgvector for Heroku Postgres
Over the past few weeks, we worked on adding pgvector as an extension on Heroku Postgres . We're excited to release this feature, and based on the feedback on our public roadmap , many of you are too. We want to share a bit more about how you can use it and how it may be helpful to you.
All Standard-tier or higher databases running Postgres 15 now support the pgvector extension . You can get started by running CREATE EXTENSION vector; in a client session. Postgres 15 has been…
- Engineering
- Last Updated: June 03, 2024
- Elizabeth Cox
Last month, Heroku announced the beta release of Router 2.0 , the new Common Runtime router!
As part of our commitment to infrastructure modernization, Heroku is making upgrades to the Common Runtime routing layer. The beta release of Router 2.0 is an important step along this journey. We’re excited to give you an inside look at all we’ve been doing to get here.
In both the Common Runtime and Private Spaces , the Heroku router is responsible for serving requests to customers’ web dynos. In 2024, Router 2.0 will replace the existing Common Runtime router. We’re being…
- Engineering
- Last Updated: April 11, 2023
- Michael Friis
In this post, we’d like to share an example of the kind of behind-the-scenes work that the Heroku team does to continuously improve the platform based on customer feedback.
The Heroku Common Runtime is one of the best parts of Heroku. It’s the modern embodiment of the principle of computing resource time-sharing pioneered by John McCarthy and later by UNIX, which evolved into the underpinnings of much of modern-day cloud computing. Because Common Runtime resources are safely shared between customers, we can offer dynos very efficiently, participate in the GitHub Student Program , and run the Heroku Open…
- Engineering
- Last Updated: April 24, 2024
- Ethan Limchayseng
This article was originally authored by Srinath Ananthakrishnan, an engineer on the Heroku Runtime Networking Team
This following story outlines a recent issue we saw with migrating one of our internal systems over to a new EC2 substrate and in the process breaking one of our customer’s use cases. We also outline how we went about discovering the root of the issue, how we fixed it, and how we enjoyed solving a complex problem that helped keep the Heroku customer experience as simple and straightforward as possible!
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- 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…
- Engineering
- Last Updated: April 09, 2024
- Chris Marino, Srini Nirmalgandhi
This post previously appeared on the Salesforce Architects blog. Event-driven application architectures have proven to be effective for implementing enterprise solutions using loosely coupled services that interact by exchanging asynchronous events. Salesforce enables event-driven architectures (EDAs) with Platform Events and Change Data Capture (CDC) events as well as triggers and Apex callouts, which makes the Salesforce Platform a great way to build all of your digital customer experiences . This post is the first in a series that covers various EDA patterns, considerations for using them, and examples deployed on the Salesforce Platform.
- Engineering
- Last Updated: October 01, 2020
- Damien Mathieu
Incidents are inevitable. Any platform, large or small will have them. While resiliency work will definitely be an important factor in reducing the number of incidents, hoping to remove all of them (and therefore reach 100% uptime) is not an achievable goal.
We should, however, learn as much as we can from incidents, so we can avoid repeating them.
In this post, we will look at one of those incidents, #2105 , see how it happened (spoiler: I messed up), and what we’re doing to avoid it from happening again (spoiler: I’m not fired).
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