Search overlay panel for performing site-wide searches

Boost Performance & Scale with Postgres Advanced. Join Pilot Now!

Languages

Open Sourcing oclif, the CLI Framework that Powers Our CLIs

Today we're excited to announce that we've open sourced oclif, a framework for building command line interfaces.

We built oclif to serve as the common foundation for both the Heroku and Salesforce CLIs and to abstract away the common struggles. The framework is now available to any developer for building CLIs large or small. oclif makes building CLIs more accessible by providing you with the patterns and tools to scaffold a working command line interface. It provides a structure for simple to advanced CLIs, including documentation, testing, and plugins for adding new commands.

With oclif you can get up …

Kotlin Programming Language is On the Rise

It’s rare when a highly structured language with fairly strict syntax sparks emotions of joy and delight. But Kotlin, which is statically typed and compiled like other less friendly languages, delivers a developer experience that thousands of mobile and web programmers are falling in love with.

The designers of Kotlin, who have years of experience with developer tooling (IntelliJ and other IDEs), created a language with very specific developer-oriented requirements. They wanted a modern syntax, fast compile times, and advanced concurrency constructs while taking advantage of the robust performance and reliability of the JVM. The result, Kotlin 1.0, was released …

Dawn of the Dead Ends: Fixing a Memory Leak in Apache Kafka

At Heroku, we're always working towards increased operational stability with the services we offer. As we recently launched the beta of Apache Kafka on Heroku, we've been running a number of clusters on behalf of our beta customers.

Over the course of the beta, we have thoroughly exercised Kafka through a wide range of cases, which is an important part of bringing a fast-moving open-source project to market as a managed service. This breadth of exposure led us to the discovery of a memory leak in Kafka, having a bit of an adventure debugging it, and then contributing a …

See Python, See Python Go, Go Python Go

Andrey Petrov is the author of urllib3, the creator of Briefmetrics and ssh-chat, and a former Googler and YCombinator alum. He’s here to tell us of a dangerous expedition his requests undertook, which sent them from Python, through the land of C, to a place called Go (and back again).

Today we're going to make a Python library that is actually the Go webserver, for which we can write handlers in Python. It makes Python servers really fast, and—more importantly—it’s a bit fun and experimental. This post is a more detailed overview of my PyCon 2016 talk of …

Announcing Heroku + Parse: Flexible Platform Meets Feature-Rich SDKs

Most modern mobile apps depend heavily on the app’s back-end. That’s because many of the expectations users have for mobile apps today — for the application to work regardless of network connectivity, to notify them when relevant content changes, to have integrations with the social networks they use, for appropriate levels of security, and a hundred other things — are reliant on the app’s back-end services.

The most common pattern for mobile back-ends we see today is for developers to design, build and maintain their back-end architectures on Heroku. This approach is as flexible as it is powerful, but it …

The Heroku Mobile App Template

One of the challenges when starting a mobile app project is deciding what technology stack to use. Should the client app use iOS or Android native, mobile web, or a hybrid? Do the backend in Node, Ruby, or Java? Or skip the backend and use an Mobile Backend-as-a-Service?

To help avoid needing to answer all those on your own we are open sourcing the Heroku Mobile Template. This app provides a full-stack starting point for creating new hybrid mobile apps and deploying them to Heroku.

What’s in the box?

The template application implements a simple real-time mobile Quiz app …

Stuff Goes Bad

The Heroku Routing team does a lot of work with Erlang, both
in terms of development and maintenance, to make sure the platform scales smoothly
as it continues to grow.

Over time we've learned some hard-earned lessons about making systems that can
scale with some amounts of reliability (or rather, we've definitely learned what
doesn't work), and about what kind of operational work we may expect to have
to do in anger.

This kind of knowledge usually remains embedded within the teams that develop
it, and tends to die when individuals leave or change roles. When new members
join …

Git Push Heroku Master: Now 40% Faster

Flow is an important part of software development. The ability to achieve flow during daily work makes software development a uniquely enjoyable profession. Interruptions in your code/test loop make this state harder to achieve. Whether you are running unit tests locally, launching a local webserver, or deploying to Heroku there's always some waiting and some interruption. Every second saved helps you stay in your flow.

We’ve been working on reducing the time it takes to build your code on Heroku. Read through this post for details on the process we used to make builds
fast, or check out the end …

Helios – open source framework for mobile

Heroku has a strong tradition with open source projects. Engineers have dedicated countless hours to the projects that developers count on every day. Open Source Software is in our DNA.

Speaking personally, I’m passionate about building tools like AFNetworking and cupertino, in order to help developers build insanely great experiences for mobile devices. It’s with great pleasure that I introduce something new I’ve been working on:

Helios is an open-source framework that provides essential back-end services for iOS apps. This includes data synchronization, push notifications, in-app purchases, and passbook integration. It allows developers to get a client-server app up-and-running …

Run JRuby on Heroku: Ruby with JVM-Based Libraries

Over a year ago Heroku launched the Cedar stack and the ability to run Java on our platform. Java is known as a powerful language – capable of performing at large scale. Much of this potential comes from the JVM that Java runs on. The JVM is the stable, optimized, cross-platform virtual machine that also powers other languages including Scala and Clojure. Starting today you can leverage the power of the JVM in your Ruby applications without learning a new language, by using JRuby on Heroku.

After a beta process with several large production applications, we are pleased to …

Subscribe to the full-text RSS feed for Languages.