How to

PubNub OnRequest Functions allow developers to create hosted REST API endpoints that process incoming HTTP requests. However, it may be necessary to sign these requests to ensure the integrity and authenticity of the data being sent.

Access Manager allows you to set rules that grant read & write access to specific channels and user metadata and define permissions for who can read, write, and modify that data. This guide discusses how to implement Access Manager within a PubNub Function.

Applications that send messages at a high frequency need to consider how readable those messages are for recipients. This how-to will describe how you can either throttle or aggregate messages for a large audience

Learn how to develop a real-time streaming application with PubNub, allowing you to stream a continuous firehose of data to any number of recipients

Follow this how-to to enable PubNub's Mobile Push Gateway in the Admin Portal to send your Android users push notifications and alerts.

Virtual events need chat to keep users engaged, but it's often a challenge to build a chat solution that works at scale and can handle the network load surges that occur during popular events. As a developer, you need to select a robust backend API provider capable of transmitting and receiving the high volume of messages that your viewers and participants generate.

For any delivery solution, the end user experience will depend on providing real-time updates on vehicle location, delivery time and delivery status

This how-to will explain how to add a real-time counter of active users to any application, what to consider while building this type of feature, and how PubNub can make it easy.

Follow this how-to to learn more about how you can leverage push notifications in your application to better keep your users engaged and informed.