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Dependable realtime banking with Kafka and Ably

Interest in online banking is skyrocketing. In this context, more and more banking providers are building digital products (especially mobile offerings) and improving their core capabilities to meet user expectations of the instantaneous, always-on, realtime world. In this blog post, we will look at Kafka’s characteristics and explore why it’s such a popular choice for architecting event-driven realtime banking ecosystems.

Reliable WebSockets-based pub/sub with Spring Boot

Spring Boot is a powerful application framework for creating production-grade Spring based Applications. It allows for developers to very quickly and easily get sites up and running, with databases and more. In this tutorial, we’ll be going over WebSockets, Pub/Sub, and how to make the most out of these in your Spring Boot applications.

Balancing act: the current limits of AWS network load balancers

At Ably we provide a service that handles high volumes of client connections – multiple millions of concurrent WebSocket and HTTP streaming connections. Said connections are terminated by a set of frontend compute instances; distributing the connections among available instances is the role of one or more load balancers.

Guide to Pub/Sub in Golang

If you’ve ever used Go before, the concepts of Publish/Subscribe should be fairly familiar to you. It is much like how goroutines communicate over channels between each other, the idea boils down to allowing for such a channel to have multiple ‘subscribers’ receive messages sent on the channel. This paradigm can be powerful when used right, allowing for a cut down of complexity from both the publisher and subscriber side, as well as fast asynchronous communication.

How Ably's core values came to be

When I joined Ably we were a team of 13 people in an office in Camden. We weren’t long off the back of securing our Series A round, we knew lots of hiring was coming, and we needed to grow up (a bit). The culture was easily absorbed by osmosis: very welcoming, smart people, like to have a pint in the Hawley Arms. No set working hours. Lots of dogs! It’s bewildering to think how much can change in that time.

Introducing the Ably Flutter plugin

Today, we’re pleased to support Flutter’s growing community of builders by releasing Ably’s Flutter plugin v1.0. This makes it easy for developers to add WebSocket-based pub/sub messaging to their Flutter applications. Flutter has grown incredibly over the past few years, providing a platform to build modern applications. Increasingly, developers are looking to build event-driven applications where user interactions play out in realtime.

Using Airtable as a database to store realtime messages

In this article, we'll see how to use Airtable to store realtime messages using a group chat app as an example. We'll use Ably's realtime infrastructure to power the chat app and make use of WebHooks to publish messages to Airtable directly in the correct order from Ably. Check the full source code of the group chat app written in VueJS on GitHub and the live demo of the application at https://realtime-chat-storage.ably.dev/