Keep in touch with friends, coworkers, shared interest groups, customers, or whoever you want with the free chat app blueprint from Backendless.

Another article we wrote gave an introduction to Backendless pub/sub messaging which included a sample for broadcasting and receiving messages. Today we are going to show how to use Backendless messaging for conditional message delivery.

In another post, we introduced you to the publish/subscribe messaging API. The API can be used to broadcast messages that can be received by multiple client apps. Be sure to check out our guide to building a Flutter chat app to see pub/sub messaging in action. Note: It is important to distinguish between pub/sub messages…

In another post, we described a feature for conditional pub/sub message delivery using SQL selectors. With that (selector) approach, the publisher must attach headers to the message and the subscriber uses an SQL-based condition that references header names and values. In addition to selectors, Backendless supports another type of conditional delivery – subtopics.

Sending an email is a very common operation for many applications. For most of them, it is the server-side that is responsible for delivering an email message. Backendless makes it trivially easy to deliver a branded email (meaning it will look like it was sent by your app) in the plain text or HTML formats…

Publish/subscribe messaging has been around for a long time. The concept is rather simple – a program can publish a message to a queue or a topic, while another program subscribes to the queue or the topic to receive published messages. There are a lot of caveats in the model such as conditional delivery, message…