How to
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Real-Time
How to Call Access Manager from PubNub Functions
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.
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Real-Time
How to Develop a real-time streaming application with PubNub
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
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Collaboration
Build Collaborative Applications
Follow this how-to and learn how you can build and power your real-time collaborative applications with PubNub.
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Push Notifications
Enabling Mobile Push Notifications: Android
Follow this how-to to enable PubNub's Mobile Push Gateway in the Admin Portal to send your Android users push notifications and alerts.
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Real-Time
How to Create a Real-Time Delivery Application
For any delivery solution, the end user experience will depend on providing real-time updates on vehicle location, delivery time and delivery status
![how-to real-time user counter image](https://www.pubnub.com/cdn/3prze68gbwl1/j6Hf0llsWpOj6BVPctvue/dd9914fcf6f37958cf487c8d22c8b39f/how-to-online-users.png?w=360&h=200&fit=)
Real-Time
How to Build a Real-Time Counter of Active Users
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.
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Push Notifications
Push Notifications
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.
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Push Notifications
Enabling APNs Mobile Push Notifications
Follow this how-to to enable PubNub's Mobile Push Gateway in the Admin Portal to send your iOS users push notifications and alerts using APNs.
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Collaboration
How to call PubNub from Alexa
Amazon’s Echo is the market leading smart speaker and we see an increasing number of customers want to integrate Alexa into their PubNub solution