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Heroku Blog

Heroku Open Sources the Twelve-Factor App Definition

Today, we are excited to announce Twelve-Factor is now an open source project. This is a special moment in the journey of Twelve-Factor over the years. Published over a decade ago by Heroku co-founder Adam Wiggins to codify the best practices for writing SaaS apps, the ideas espoused on that website inspired many generations of software engineers. Open sourcing 12-Factor is an important milestone to take the industry forward and codify best practices for the future. As the modern app architecture reflected in the 12-Factors became mainstream, new technologies and ideas emerged, and we needed to bring more voices and…

Building Supercharged Agents with Heroku and Agentforce

Heroku is a powerful general-purpose PaaS offering, but when combined with the broader Salesforce portfolio, it excels in unlocking and unifying customer data, regardless of its age, location, size, or structure. One of the key reasons why Salesforce customers turn to Heroku is when they require such data to be securely linked to high-scale experiences, such as consumer web or mobile apps, or when they need scalable compute resources to access and analyze more intricate and complex data in real time. In this blog, we’ll explore how to supercharge Agentforce by leveraging one of the ways in which the Heroku…

Best Practices for Optimizing Your Enterprise Cloud Applications with New Relic

If your cloud application performs poorly or is unreliable, users will walk away, and your enterprise will suffer. To know what’s going on inside of your million-concurrent-user application (Don’t worry, you’ll get there!), you need observability. Observability gives you the insights you need to understand how your application behaves. As your application and architecture scale up, effective observability becomes increasingly indispensable. Heroku gives you more than just a flexible and developer-friendly platform to run your cloud applications. You also get access to a suite of built-in observability features. Heroku’s core application metrics, alerts, and language-specific runtime metrics offer a comprehensive…

Electron on Heroku

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, where…

Simplify Your Cloud Security: Heroku ACM Now Supports Wildcard Domains

We are thrilled to announce that Heroku Automated Certificate Management (ACM) now supports wildcard domains for the Common Runtime! Heroku ACM’s support for wildcard domains streamlines your cloud management by allowing Heroku’s Certificate management to cover all your desired subdomains with only one command, reducing networking setup overhead and providing more flexibility while enhancing the overall security of your applications. This highly-requested feature request is here, and in this blog post, we'll dive into what wildcard domains are, why you should use them, and the new possibilities this support brings to Heroku ACM. What’s a Wildcard Domain and Why Should…

Testing a React App in Chrome with Heroku CI

When building web applications, unit testing your individual components is certainly important. However, end-to-end testing provides assurance that the final user experience of your components chained together matches the expected behavior. Testing web application behavior locally in your browser can be helpful, but this approach isn’t efficient or reliable, especially as your application grows more complex. Ideally, end-to-end tests in your browser are automated and integrated into your CI pipeline. Every time you commit a code change, your tests will run. Passing tests gives you the confidence that the application — as your end users experience it — behaves as…

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