Great user experience on the web comes from being able to provide users with exactly what they want in the most seamless way possible. Behind the scenes, some user actions may take more time to process than others. For example, showing or hiding an HTML element is a quick operation whereas making an XHR request to get data from an external API is a slower operation. JavaScript provides us with a way to handle them all without giving up that instant delight users naturally expect.

Anyone who's worked in technology has likely hit on the "build vs. buy" question at some point. Should you build your own custom solution to meet the exact requirements of your business? Or does it make more financial sense and save time if you use a third-party vendor? Let's use an example. You are a tech lead at a company that delivers a platform for online learning.

Many technology companies have an ongoing commitment to their customers to guarantee reliability and uptime, with service level agreements that guarantee to resolve or escalate incidents within a particular time frame. Engineering team members rotate shifts so that someone is always on-call to be "paged" (these days, not using an actual pager) if an issue arises. Being on-call means that you typically need to be responsive even outside of your usual office hours.

Livestreams allow an online audience to come together and watch a video broadcast in realtime. Globally, uptake has soared since 2020 as people come together to experience live sports and arts events; and to work, learn and play. The popularity of livestream entertainment is, in part, down to how it includes the audience. Integrated chat and other features allow viewers to interact -- with each other and the host.

Ably was the delegate sponsor at GopherCon UK this year and we had a great time. The conference was held in The Brewery, London. For many of our team members it was the first physical developer event they had been to in almost two years. Whilst I am thrilled to be returning to face-to-face interaction and the depth of conversation they enable, I certainly forgot how early a start physical events are.

Here at Ably, we’ve helped many people to solve some truly interesting, and at times wacky data distribution problems. Be it helping to organise transport for the healthcare sector, or acting as one of the key communication layers on a VR platform; in more and more aspects of our lives, we’re expecting online experiences to happen in realtime. Unsurprisingly though, one key use-case reemerges every time: chat.

We recently announced Ably's Control API, a REST API that enables you to manage Ably's configuration programmatically. You can now use the Control API to configure anything previously only configurable via the Ably dashboard. The Ably platform is designed around four pillars of dependability: Performance, Integrity, Reliability, and Availability.

Whether React is your favorite JavaScript framework or not, it is the most commonly used web framework. If you're building single-page apps, high fidelity frontends, or even in some cases static sites, there's a high chance that you're using React to do it. In the past it was sometimes difficult to decide on the best place to put code from libraries, such as ably-js, which can cause re-renders, and which have their own state management.

This is an article about the complexity of maintaining data consistency in distributed environments. It introduces conflict-free replicated data types (CRDTs) as a way to resolve concurrent data changes.

We are excited to announce our partnership with Aerospike, the world leading realtime data platform, to solve intermittent connectivity, massive scale, and real-time processing challenges for organizations looking to deploy realtime digital experiences at global scale.