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[Text Analytics] Edit README section about Azure CLI #33465

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[Text Analytics] Edit README section about Azure CLI #33465

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Edit README section about Azure CLI
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69 changes: 5 additions & 64 deletions sdk/textanalytics/Azure.AI.TextAnalytics/README.md
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Expand Up @@ -17,9 +17,7 @@ Text Analytics is part of the Azure Cognitive Service for Language, a cloud-base
[Source code][textanalytics_client_src] | [Package (NuGet)][textanalytics_nuget_package] | [API reference documentation][textanalytics_refdocs] | [Product documentation][language_service_docs] | [Samples][textanalytics_samples]

## Getting started

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### Install the package

Install the Azure Text Analytics client library for .NET with [NuGet][nuget]:

```dotnetcli
Expand All @@ -39,47 +37,18 @@ This table shows the relationship between SDK versions and supported API version
|1.0.X | 3.0

### Prerequisites

* An [Azure subscription][azure_sub].
* An existing Cognitive Services or Language service resource.

#### Create a Cognitive Services or Language service resource

The Language service supports both [multi-service and single-service access][cognitive_resource_portal]. Create a Cognitive Services resource if you plan to access multiple cognitive services under a single endpoint/key. For Language service access only, create a Language service resource.

You can create either resource using:

**Option 1:** [Azure Portal][cognitive_resource_portal].
#### Create a Cognitive Services resource or a Language service resource
Azure Cognitive Service for Language supports both [multi-service and single-service access][cognitive_resource_portal]. Create a Cognitive Services resource if you plan to access multiple cognitive services under a single endpoint and API key. To access the features of the Language service only, create a Language service resource instead.

**Option 2:** [Azure CLI][cognitive_resource_cli].

Below is an example of how you can create a Language service resource using the CLI:

```PowerShell
# Create a new resource group to hold the Language service resource -
# if using an existing resource group, skip this step
az group create --name <your-resource-name> --location <location>
```

```PowerShell
# Create Text Analytics
az cognitiveservices account create \
--name <your-resource-name> \
--resource-group <your-resource-group-name> \
--kind TextAnalytics \
--sku <sku> \
--location <location> \
--yes
```

For more information about creating the resource or how to get the location and sku information see [here][cognitive_resource_cli].
You can create either resource via the [Azure portal][azure_portal_create_ta_resource] or, alternatively, you can follow the steps in [this document][azure_cli_create_ta_resource] to create it using the [Azure CLI][azure_cli].

### Authenticate the client

Interaction with the service using the client library begins with creating an instance of the [TextAnalyticsClient][textanalytics_client_class] class. You will need an **endpoint**, and either an **API key** or ``TokenCredential`` to instantiate a client object. For more information regarding authenticating with cognitive services, see [Authenticate requests to Azure Cognitive Services][cognitive_auth].

#### Get an API key

You can get the `endpoint` and `API key` from the Cognitive Services resource or Language service resource information in the [Azure Portal][azure_portal].

Alternatively, use the [Azure CLI][azure_cli] snippet below to get the API key from the Language service resource.
Expand All @@ -89,7 +58,6 @@ az cognitiveservices account keys list --resource-group <your-resource-group-nam
```

#### Create a `TextAnalyticsClient` using an API key credential

Once you have the value for the API key, create an `AzureKeyCredential`. This will allow you to
update the API key without creating a new client.

Expand All @@ -102,7 +70,6 @@ TextAnalyticsClient client = new(new Uri(endpoint), new AzureKeyCredential(apiKe
```

#### Create a `TextAnalyticsClient` with an Azure Active Directory credential

Client API key authentication is used in most of the examples in this getting started guide, but you can also authenticate with Azure Active Directory using the [Azure Identity library][azure_identity]. Note that regional endpoints do not support AAD authentication. Create a [custom subdomain][custom_subdomain] for your resource in order to use this type of authentication.

To use the [DefaultAzureCredential][DefaultAzureCredential] provider shown below,
Expand All @@ -122,38 +89,30 @@ TextAnalyticsClient client = new(new Uri(endpoint), new DefaultAzureCredential()
```

## Key concepts

### `TextAnalyticsClient`

A `TextAnalyticsClient` is the primary interface for developers using the Text Analytics client library. It provides both synchronous and asynchronous operations to access a specific use of text analysis, such as language detection or key phrase extraction.

### Input

A **document**, is a single unit of input to be analyzed by the predictive models in the Language service. Operations on `TextAnalyticsClient` may take a single document or a collection of documents to be analyzed as a batch.
For document length limits, maximum batch size, and supported text encoding see [here][data_limits].

### Operation on multiple documents

For each supported operation, `TextAnalyticsClient` provides a method that accepts a batch of documents as strings, or a batch of either `TextDocumentInput` or `DetectLanguageInput` objects. This methods allow callers to give each document a unique ID, indicate that the documents in the batch are written in different languages, or provide a country hint about the language of the document.

**Note:** It is recommended to use the batch methods when working on production environments as they allow you to send one request with multiple documents. This is more performant than sending a request per each document.

### Return value

Return values, such as `AnalyzeSentimentResult`, is the result of a Text Analytics operation, containing a prediction or predictions about a single document. An operation's return value also may optionally include information about the document and how it was processed.

### Return value Collection

A Return value collection, such as `AnalyzeSentimentResultCollection`, is a collection of operation results, where each corresponds to one of the documents provided in the input batch. A document and its result will have the same index in the input and result collections. The return value also contains a `HasError` property that allows to identify if an operation executed was successful or unsuccessful for the given document. It may optionally include information about the document batch and how it was processed.

### Long-Running Operations

For large documents which take a long time to execute, these operations are implemented as [**long-running operations**][dotnet_lro]. Long-running operations consist of an initial request sent to the service to start an operation, followed by polling the service at intervals to determine whether the operation has completed or failed, and if it has succeeded, to get the result.

For long running operations in the Azure SDK, the client exposes a `Start<operation-name>` method that returns an `Operation<T>` or a `PageableOperation<T>`. You can use the extension method `WaitForCompletionAsync()` to wait for the operation to complete and obtain its result. A sample code snippet is provided to illustrate using long-running operations [below](#run-multiple-actions-asynchronously).

### Thread safety

We guarantee that all client instance methods are thread-safe and independent of each other ([guideline](https://azure.github.io/azure-sdk/dotnet_introduction.html#dotnet-service-methods-thread-safety)). This ensures that the recommendation of reusing client instances is always safe, even across threads.

### Additional concepts
Expand All @@ -167,11 +126,9 @@ We guarantee that all client instance methods are thread-safe and independent of
<!-- CLIENT COMMON BAR -->

## Examples

The following section provides several code snippets using the `client` [created above](#create-textanalyticsclient-with-azure-active-directory-credential), and covers the main features present in this client library. Although most of the snippets below make use of synchronous service calls, keep in mind that the `Azure.AI.TextAnalytics` package supports both synchronous and asynchronous APIs.

### Sync examples

* [Detect Language](#detect-language)
* [Analyze Sentiment](#analyze-sentiment)
* [Extract Key Phrases](#extract-key-phrases)
Expand All @@ -180,14 +137,12 @@ The following section provides several code snippets using the `client` [created
* [Recognize Linked Entities](#recognize-linked-entities)

### Async examples

* [Detect Language Asynchronously](#detect-language-asynchronously)
* [Recognize Named Entities Asynchronously](#recognize-named-entities-asynchronously)
* [Analyze Healthcare Entities Asynchronously](#analyze-healthcare-entities-asynchronously)
* [Run multiple actions Asynchronously](#run-multiple-actions-asynchronously)

### Detect Language

Run a predictive model to determine the language that the passed-in document or batch of documents are written in.

```C# Snippet:DetectLanguage
Expand Down Expand Up @@ -217,7 +172,6 @@ For samples on using the production recommended option `DetectLanguageBatch` see
Please refer to the service documentation for a conceptual discussion of [language detection][language_detection].

### Analyze Sentiment

Run a predictive model to determine the positive, negative, neutral or mixed sentiment contained in the passed-in document or batch of documents.

```C# Snippet:AnalyzeSentiment
Expand Down Expand Up @@ -250,7 +204,6 @@ To get more granular information about the opinions related to targets of a prod
Please refer to the service documentation for a conceptual discussion of [sentiment analysis][sentiment_analysis].

### Extract Key Phrases

Run a model to identify a collection of significant phrases found in the passed-in document or batch of documents.

```C# Snippet:ExtractKeyPhrases
Expand Down Expand Up @@ -283,7 +236,6 @@ For samples on using the production recommended option `ExtractKeyPhrasesBatch`
Please refer to the service documentation for a conceptual discussion of [key phrase extraction][key_phrase_extraction].

### Recognize Named Entities

Run a predictive model to identify a collection of named entities in the passed-in document or batch of documents and categorize those entities into categories such as person, location, or organization. For more information on available categories, see [Text Analytics Named Entity Categories][named_entities_categories].

```C# Snippet:RecognizeEntities
Expand Down Expand Up @@ -324,7 +276,6 @@ For samples on using the production recommended option `RecognizeEntitiesBatch`
Please refer to the service documentation for a conceptual discussion of [named entity recognition][named_entity_recognition].

### Recognize PII Entities

Run a predictive model to identify a collection of entities containing Personally Identifiable Information found in the passed-in document or batch of documents, and categorize those entities into categories such as US social security number, drivers license number, or credit card number.

```C# Snippet:RecognizePiiEntities
Expand Down Expand Up @@ -362,7 +313,6 @@ For samples on using the production recommended option `RecognizePiiEntitiesBatc
Please refer to the service documentation for supported [PII entity types][pii_entity].

### Recognize Linked Entities

Run a predictive model to identify a collection of entities found in the passed-in document or batch of documents, and include information linking the entities to their corresponding entries in a well-known knowledge base.

```C# Snippet:RecognizeLinkedEntities
Expand Down Expand Up @@ -407,7 +357,6 @@ For samples on using the production recommended option `RecognizeLinkedEntitiesB
Please refer to the service documentation for a conceptual discussion of [entity linking][entity_linking].

### Detect Language Asynchronously

Run a predictive model to determine the language that the passed-in document or batch of documents are written in.

```C# Snippet:DetectLanguageAsync
Expand All @@ -433,7 +382,6 @@ catch (RequestFailedException exception)
```

### Recognize Named Entities Asynchronously

Run a predictive model to identify a collection of named entities in the passed-in document or batch of documents and categorize those entities into categories such as person, location, or organization. For more information on available categories, see [Text Analytics Named Entity Categories][named_entities_categories].

```C# Snippet:RecognizeEntitiesAsync
Expand Down Expand Up @@ -470,7 +418,6 @@ catch (RequestFailedException exception)
```

### Analyze Healthcare Entities Asynchronously

Text Analytics for health is a containerized service that extracts and labels relevant medical information from unstructured texts such as doctor's notes, discharge summaries, clinical documents, and electronic health records. For more information see [How to: Use Text Analytics for health][healthcare].

```C# Snippet:TextAnalyticsAnalyzeHealthcareEntitiesConvenienceAsyncAll
Expand Down Expand Up @@ -608,7 +555,6 @@ await foreach (AnalyzeHealthcareEntitiesResultCollection documentsInPage in heal
```

### Run multiple actions Asynchronously

This functionality allows running multiple actions in one or more documents. Actions include:

* Named Entities Recognition
Expand Down Expand Up @@ -708,9 +654,7 @@ This functionality allows running multiple actions in one or more documents. Act
```

## Troubleshooting

### General

When you interact with the Cognitive Services for Language using the .NET Text Analytics SDK, errors returned by the Language service correspond to the same HTTP status codes returned for REST API requests.

For example, if you submit a batch of text document inputs containing duplicate document ids, a `400` error is returned, indicating "Bad Request".
Expand Down Expand Up @@ -748,7 +692,6 @@ Headers:
```

### Setting up console logging

The simplest way to see the logs is to enable the console logging.
To create an Azure SDK log listener that outputs messages to console use AzureEventSourceListener.CreateConsoleLogger method.

Expand All @@ -760,7 +703,6 @@ using AzureEventSourceListener listener = AzureEventSourceListener.CreateConsole
To learn more about other logging mechanisms see [here][logging].

## Next steps

Samples showing how to use this client library are available in this GitHub repository.
Samples are provided for each main functional area, and for each area, samples are provided for analyzing a single document, and a collection of documents in both sync and async mode.

Expand All @@ -779,13 +721,11 @@ Samples are provided for each main functional area, and for each area, samples a
* [Abstractive Summarization][abstract_summary_sample]

### Advanced samples

* [Analyze Sentiment with Opinion Mining][analyze_sentiment_opinion_mining_sample]
* [Run multiple actions][analyze_operation_sample]
* [Create a mock client][mock_client_sample] for testing using the [Moq][moq] library.

## Contributing

See the [CONTRIBUTING.md][contributing] for details on building, testing, and contributing to this library.

This project welcomes contributions and suggestions. Most contributions require you to agree to a Contributor License Agreement (CLA) declaring that you have the right to, and actually do, grant us the rights to use your contribution. For details, visit [cla.microsoft.com][cla].
Expand All @@ -803,7 +743,6 @@ This project has adopted the [Microsoft Open Source Code of Conduct][code_of_con
[textanalytics_nuget_package]: https://www.nuget.org/packages/Azure.AI.TextAnalytics
[textanalytics_samples]: https://github.com/Azure/azure-sdk-for-net/tree/main/sdk/textanalytics/Azure.AI.TextAnalytics/samples/README.md
[cognitive_resource_portal]: https://docs.microsoft.com/azure/cognitive-services/cognitive-services-apis-create-account
[cognitive_resource_cli]: https://docs.microsoft.com/azure/cognitive-services/cognitive-services-apis-create-account-cli
[dotnet_lro]: https://github.com/Azure/azure-sdk-for-net/blob/main/sdk/core/Azure.Core/README.md#consuming-long-running-operations-using-operationt
[mock_client_sample]: https://github.com/Azure/azure-sdk-for-net/tree/main/sdk/textanalytics/Azure.AI.TextAnalytics/samples/Sample_MockClient.md

Expand Down Expand Up @@ -845,6 +784,8 @@ This project has adopted the [Microsoft Open Source Code of Conduct][code_of_con

[azure_cli]: https://docs.microsoft.com/cli/azure
[azure_sub]: https://azure.microsoft.com/free/dotnet/
[azure_portal_create_ta_resource]: https://portal.azure.com/#create/Microsoft.CognitiveServicesTextAnalytics
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[azure_cli_create_ta_resource]: https://learn.microsoft.com/azure/cognitive-services/cognitive-services-apis-create-account-cli
[nuget]: https://www.nuget.org/
[azure_portal]: https://portal.azure.com
[moq]: https://github.com/Moq/moq4/
Expand Down