TextMood

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A Xamarin + IoT + Azure sample that detects the sentiment of incoming text messages, performs sentiment analysis on the text, and changes the color of a Philips Hue lightbulb

TextMood 최신버젼 다운로드

최종 버전 다운로드 (.zip)

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[![Mobile](https://github.com/brminnick/TextMood/actions/workflows/mobile.yml/badge.svg)](https://github.com/brminnick/TextMood/actions/workflows/mobile.yml) [![Backend](https://github.com/brminnick/TextMood/actions/workflows/backend.yml/badge.svg)](https://github.com/brminnick/TextMood/actions/workflows/backend.yml)

# TextMood

An IoT + Azure sample that detects the sentiment of incoming text messages, performs sentiment analysis on the text, and changes the color of a Philips Hue lightbulb to correspond with the average sentiment.

## Architecture

![Text Mood Architecture](https://github.com/brminnick/Videos/blob/master/TextMood/TextMoodArchitecture.png)

## Demo

1. The phone on the left sends a text message to the Twilio phone number.
2. Twilio forwards the text message to an Azure Function
3. This first Azure Function determines the sentiment of the message then sends an emoji response back to the phone on the left
4. The second Azure Function saves the message to an Azure SQL Database
5. The third Azure Function invokes SignalR
6. SignalR sends a real-time update to the phone on the right, containing the new message
7. The phone on the right displays the new message, then updates its background color to match the average sentiment of the received messages
8. The phone on the right then simultaneously changes the light color of the Philips Hue light to match the average sentiment

![Text Mood Demo](https://github.com/brminnick/Videos/blob/master/TextMood/TextMoodGif.gif)

## Cognitive Services Setup

### POST Request

```json
{
  "documents": [
    {
      "language": "en",
      "id": "251c99d7-1f89-426a-a3ad-c6fa1b34f020",
      "text": "I hope you find time to actually get your reports done today."
    }
  ]
}
```

### Response

```json
{
"sentiment": {
  "documents": [
    {
      "id": "251c99d7-1f89-426a-a3ad-c6fa1b34f020",
      "score": 0.776355504989624
    }
  ]
}
```

### 1. Create a Sentiment Analysis API Key

To use the Sentiment Analysis API, we'll need to first create an API Key using the Azure Portal.

1. Navigate to the [Azure Portal](https://portal.azure.com/?WT.mc_id=mobile-0000-bramin)
    - If you are new to Azure, use [this sign-up link](https://azure.microsoft.com/free/ai?WT.mc_id=mobile-0000-bramin) to receive a free $200 credit

2. On the Azure Portal, select **+ Create a Resource**
3. In the **New** window, select **AI + Machine Learning**
4. In the **Featured** frame, select **Text Analytics**
5. In the **Create** window, make the following selections
    - **Name**: TextMood
    - **Subscription**: [Select your Azure subscription]
    - **Location**: [Select the location closest to you]
    - **Pricing Tier**: F0 (5K Transactions per 30 days)
        - This is a free tier
    - **Resource Group**: TextMood
6. In the **Create** window, select **Create**
7. On the Azure Portal, select the bell-shaped notification icon
8. Stand by while the **Notifications** window says **Deployment in progress...**
9. Once the deployment has finished, on the **Notifications** window, select **Go to resource**
10. In the TextMood Resource page, select **Keys** and locate **KEY 1**
    - We will use this API Key when we create our Azure Function

11. In the TextMood Resource page, select **Overview** and locate the **Endpoint**
    - We will use this Url when we create our Azure Function

### 2. Create an Azure Function

[Azure Functions](https://azure.microsoft.com/services/functions?WT.mc_id=mobile-0000-bramin) are a serverless offering in Azure. In these steps, we will use Azure Functions to create a POST API.

1. Clone or download this repo
    - To clone the repo using git, open a cmd prompt and enter the following command:
        - `git clone https://github.com/brminnick/TextMood.git`
    - To download the repo use the following steps:
        - Click Clone or Download
        - Click Download Zip

2. After downloading/cloning the repo, locate `TextMood.sln`
3. Launch `TextMood.sln` in Visual Studio 
4. In **CognitiveServicesConstants.cs**, for `TextSentimentAPIKey`, replace `Your API Key` with the Key from the TextAnalytics Cognitive Service resource created earlier
5. In **CognitiveServicesConstants.cs**, for `BaseUrl`, replace `Your Cognitive Services Base Url` with the Base Url from the TextAnalytics Cognitive Service resource created earlier

6. In the Visual Studio Solution Explorer, right-click the TextMood project
7. In the right-click menu, select **Publish**

![Right Click Publish](https://user-images.githubusercontent.com/13558917/43021578-fe004e56-8c18-11e8-97cc-3a79dd3fe2e5.png)

8. In the Publish window, select **Function App**
9. In the Publish window, select **Create New**
10. In the Public window, select **Publish**

![Publish Window](https://user-images.githubusercontent.com/13558917/43021579-fe1eaa7c-8c18-11e8-8545-4d5cb1a058ae.png)

11. In the **Create App Service** window, enter an App Name
    - **Note**: The app name needs to be unique because it will be used for the Function's url 
    - I recommend using TextMood[LastName]
        - In this example, I am using TextMoodMinnick

12. In the **Create App Service** window, select your subscription
13. In the **Create App Service** window, next to **Resource Group** select **New...**

![Create App Service](https://user-images.githubusercontent.com/13558917/43049737-ab7beb6e-8db1-11e8-8bd0-251194acfee5.png)

14. In the **New resource group name** window, enter TextMood
15. In the **New resource group name**, select **OK**

![Create App Service Group](https://user-images.githubusercontent.com/13558917/43049736-ab6769e6-8db1-11e8-89c9-c18b9d1c2bcf.png)

16. In the **Create App Service** window, next to **Hosting Plan**, select **New...**

![New Hosting Plan](https://user-images.githubusercontent.com/13558917/43049735-ab51eabc-8db1-11e8-94eb-7853331fad33.png)

17. In the **Configure Hosting Plan** window, enter a name for **App Service Plan**
    - I recommend using TextMood[LastName]Plan
        - In this example, I am using TextMoodMinnickPlan

18. In the **Configure Hosting Plan** window, select a **Location**
    - I recommend selecting the location closest to you

19. In the **Configure Hosting Plan** window, for the **Size**, select **Consumption**
20. In the **Configure Hosting Plan** window, select **OK**

![Configure Hosting Plan](https://user-images.githubusercontent.com/13558917/43049734-ab3d2028-8db1-11e8-889f-0cf28cd1a1f0.png)

21. In the **Create App Service** window, next to **Storage Account**, select **New...**

![New Storage Account](https://user-images.githubusercontent.com/13558917/43049733-ab26f24e-8db1-11e8-8421-ea121903e6c2.png)

22. In the **Storage Account** window, enter an **Account Name**
    - I recommend using textmood[LastName]
        - In this example, I am using textmoodminnick
23. In the **Storage Account** window, for the **Account Type**, select **Standard - Locally Redundant**
24. In the **Storage Account** window, select **OK**

![New Storage Account](https://user-images.githubusercontent.com/13558917/43049732-ab104c9c-8db1-11e8-8ea7-182837384c78.png)

25. In the **Create App Service** window, select **Create**

![Create App Service](https://user-images.githubusercontent.com/13558917/43049731-aad2e488-8db1-11e8-8291-f8bf297ea281.png)

26. Stand by while the Azure Function is created

![Deploying App Service](https://user-images.githubusercontent.com/13558917/43049839-7b3710f8-8db3-11e8-9f79-ce24c77c90c1.png)

27. In the Visual Studio Solution Explorer, right-click the TextMood project
28. In the right-click menu, select **Publish**

![Right Click Publish](https://user-images.githubusercontent.com/13558917/43021578-fe004e56-8c18-11e8-97cc-3a79dd3fe2e5.png)

29. In the **Publish** window, select **Publish**

![Azure Functions Publish](https://user-images.githubusercontent.com/13558917/43050274-eb039328-8dba-11e8-8c2f-eacf72d8c9f0.png)

### 4. Copy Azure Functions Url

1. Navigate to the [Azure Portal](https://portal.azure.com/?WT.mc_id=mobile-0000-bramin)
2. On the Azure Portal, select **Resource Groups**
3. In the **Resource Group** window, select **TextMood**

![Resource Group TextMood](https://user-images.githubusercontent.com/13558917/43050243-4b24c692-8dba-11e8-8ab3-16656077a73f.png)

4. In the TextMood Resource Group window, select **Overview**
5. In the TextMood Overview window, select the Azure Function resource, **TextMood[LastName]**

![Open Functions](https://user-images.githubusercontent.com/13558917/43050244-4b3a2802-8dba-11e8-9a90-4467470ac2fa.png)

6. In the **Azure Functions** window, select **AnalyzeTextSentiment**
7. In the **AnalyzeSentiment** window, select **Get Function Url**
    - We will use this Url when we create our Twilio phone number

![Get Function Url](https://user-images.githubusercontent.com/13558917/43050298-6d28cd46-8dbb-11e8-9442-b1dfa85ada24.png)

## Twilio Setup

### 1. Create Twilio Phone Number

1. Log into your Twilio account and navigate to the [Manage Numbers](https://www.twilio.com/console/phone-numbers/incoming) page.

2. Click the **+** sign to buy a new number
    - Note you may skip this step if you have an existing Twilio Phone Number

![Buy a new number](https://user-images.githubusercontent.com/13558917/43050486-3d85fd54-8dbe-11e8-82aa-4cd94737a05f.png)

3. On the **Buy a Number** page, select a **Country**
    - For this example, I am using United States

4. On the **Buy a Number** page, tap the **Number** drop down and change it to **Location**
5. On the **Buy a Number** page, enter a location name
    - For this example, I am using San Francisco

6. On the **Buy a Number** page, check **SMS**
7. On the **Buy a Number** page, click **Search**

![Buy a new number page](https://user-images.githubusercontent.com/13558917/43050472-20250a98-8dbe-11e8-88e9-d059dac13cca.png)

8. On the search results page, locate the number you'd like to purchase and select **Buy**

![Buy Number](https://user-images.githubusercontent.com/13558917/43050469-1fe11158-8dbe-11e8-982d-3f608ad066c7.png)

9. In the confirmation window, select **Buy This Number**

![Buy This Number](https://user-images.githubusercontent.com/13558917/43050470-1ff6197c-8dbe-11e8-8364-9cafe5f0b9ca.png)

10. In the purchase confirmation window, select **Setup Number**

![Setup Number](https://user-images.githubusercontent.com/13558917/43050471-200b6ff2-8dbe-11e8-8187-df1a964399f9.png)

11. In the **Messaging** section, next to **A Message Comes In**, select **Webhook**
12. In the **Messaging** section, next to **A Message Comes In**, enter the Azure Function Url that we created in the previous section
13. In the **Messaging** section, next to **A Message Comes In**, select **HTTP POST**
14. In the **Manage Numbers** window, select **Save**

![Messaging](https://user-images.githubusercontent.com/13558917/43158699-2d545b7e-8f35-11e8-8e47-d120024aa948.png)

### 2. Send a Text

1. Open a text messaging app and send a text message to your Twilio phone number

![Happy Text](https://user-images.githubusercontent.com/13558917/43050543-4ca5cbb0-8dbf-11e8-8c37-82752d265432.png)

# Resources

- [Azure Sentiment Analysis](https://azure.microsoft.com/services/cognitive-services/text-analytics?WT.mc_id=mobile-0000-bramin)
- [Azure Functions](https://azure.microsoft.com/services/functions?WT.mc_id=mobile-0000-bramin)
- [Twilio Webhooks](https://www.twilio.com/docs/glossary/what-is-a-webhook)
- [Cognitive Services](https://azure.microsoft.com/services/cognitive-services?WT.mc_id=mobile-0000-bramin)

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