Use the Azure Cognitive Text Analytics API to create a resource, get a subscription key, and then use a Reference API to send a POST request.

1. Log in to your Azure account and click Portal.
2. Search and select Text Analytics from the drop-down list.
3. Click Create a Resource:
   1. Enter a Name: TextAnalyticsDemo2020.
   2. Select the Subscription--use the default Azure subscription 1, select the Location, for example West US, and select the Pricing tier, for example F0 (5K Transactions per 30 days).
   3. Create a Resource Group and provide a name, for example, TextAnalyticsDemo2020RG.
   4. Click Create.
      When the Overview window opens, you should be able to see the following status: Your Deployment is complete.
4. Go to your resource TextAnalyticsDemo2020 and select it.
   You should see: TextAnalyticsDemo2020 | Quick Start.
5. From section 1, copy the K1 contents, for example, 0abfa73d93f1469d9d4b5db459394315.
   The Text Analytics API (v.2.1) page opens.
6. From section 2, click the API Console (V2) link:
   1. Select API Reference > POST Sentiment.
   2. In Sentiment, Select the testing console in the region where you created your resource:, select West US.
      The Text Analytics API (v.2.1) Sentiment page opens.
   3. In the Headers section, enter the value Ocp-Apim-Subscription-Key that you copied from the K1 field.
   4. In the Request body, delete the existing content and replace it with the following code:

      {
      "documents": [
      {
      "language": "en",
      "id": "1",
      "text": "I love this world"
      }
      ]
      }

   5. Click Send.
      The response status is displayed as 200 OK. The Response content field shows: { "documents": [{ "id": "1", "score": 0.96714282035827637 }], "errors": [] }.