Sentiment Analysis With Opentok and Azure Face API

I See What You're Saying: Sentiment Analysis With Opentok and Azure Face API

You know that person. It could be your significant other, a child, a co-worker, or a friend. That person that says one thing, but you can tell by their face, they mean something completely different. You probably just pictured them in your head. Maybe you remember the exact conversation. Perhaps it went like this:

You: Okay?

Them: Fine.

Spoiler Alert: It wasn't fine.

Wouldn't it be great if you could know the sentiment behind what they were saying? With OpenTok and Azure's Face API you can!

In this tutorial, we will build a multi-party video conference that allows us to analyze the sentiment of each participant based on their facial expression. Then we'll display that sentiment as an emoji over their video.

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Metamorphosis of a butterfly with the .NET core and AutoMapper logos

Using AutoMapper with ASP.NET Core 3

AutoMapper is well known in the .NET community. It bills itself as "a simple little library built to solve a deceptively complex problem - getting rid of code that maps one object to another," and it does the job nicely.

In the past, I've used it exclusively with ASP.NET APIs. However, the method for utilizing it via dependency injection has changed. So let's review how to get started, how to define mappings and how to inject our mappings into ASP.NET Core APIs.

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