How to
![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.
![portal keys 1200x630](https://www.pubnub.com/cdn/3prze68gbwl1/277sONprYeNVYSuzYIQIl/588db45740693bf838bfd57410c83073/Screen_Shot_2022-07-26_at_1.58.46_PM.png?w=360&h=200&fit=)
PubNub portal
Creating Keys
Follow this how-to on creating keys in the Admin Portal to connect your application to the PubNub network.
![portal files 1200x630](https://www.pubnub.com/cdn/3prze68gbwl1/5iVmmebixdKkFUcjz6ZnP9/370b7313bcb82b0ad9131a233b3c5060/Screen_Shot_2022-07-26_at_1.59.21_PM.png?w=360&h=200&fit=)
PubNub portal
Enabling Files
Follow this how-to on enabling Files in the Admin Portal to upload and share files.
![portal objects 1200x630](https://www.pubnub.com/cdn/3prze68gbwl1/5QQiQ80on4lKqvWQOBVBJ9/ba62ac7bce1f296d435f9a72e2550664/Screen_Shot_2022-07-26_at_1.59.09_PM.png?w=360&h=200&fit=)
PubNub portal
Enabling Objects
Follow this how-to on enabling Objects in the Admin Portal to to store metadata for users, channels, and memberships without the need of setting up your own database.
![Real_Time_Geolocation_1200x630.jpg Real_Time_Geolocation_1200x630.jpg](https://www.pubnub.com/cdn/3prze68gbwl1/CcwAhmNWk9ti8Qcu9sNSf/7a69c45170e28cddb6733ce8d63cb2af/Real_Time_Geolocation_1200x630.jpg?w=360&h=200&fit=)
Geolocation
How to Explore Real-time Geolocation Solutions
This how-to will explain real-time geolocation services for developers, what to consider while building geolocation features, and how PubNub can make it easy to stream and use real-time location data.
![Alexa Skills with PubNub Architecture Alexa Skills with PubNub Architecture](https://www.pubnub.com/cdn/3prze68gbwl1/YSdmLmTnXIRz2UWq5bJSz/62cbdd8ab096757634378abbb5848124/architecture.png?w=360&h=200&fit=)
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
![E&A-Filter-JSONPath Presentation slide explaining the concept of filtering events using JSONPath by PubNub.](https://www.pubnub.com/cdn/3prze68gbwl1/2OyIy0bEEg397Chl0HKg0z/df6aa1f955ed70d07b0c665b6e5ba844/E_A-Filter-JSONPath---Blog-Image.png?w=360&h=200&fit=)
PubNub portal
Events & Actions: How to Filter Messages Using JSONPath
Read our complete guide on how to filter Events using the Advanced JSONPath Filter in Events & Actions. In this guide, you’ll learn the different filter options available to you in E&A, what is JSONPath, and how to format complex JSONPath Filter Expressions to filter for the Events you need.
![How To: Set Up Events & Actions](https://www.pubnub.com/cdn/3prze68gbwl1/7EB4UMmPAzWtJ0XsOAr5oT/fe4cadfa334b1d421901b1bce6059872/How-to-Events-_-Actions.png?w=360&h=200&fit=)
PubNub portal
How To: Set up Events & Actions
PubNub’s Events & Actions provides real-time event routing and processing for filtering events. Learn how to create event listeners and actions with Basic Filters, including WebHook calls, SQS, and Kinesis integrations.
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