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Amazon Comprehend
Developer Guide

BatchDetectSentiment

Inspects a batch of documents and returns an inference of the prevailing sentiment, POSITIVE, NEUTRAL, MIXED, or NEGATIVE, in each one.

Request Syntax

{
   "LanguageCode": "string",
   "TextList": [ "string" ]
}

Request Parameters

For information about the parameters that are common to all actions, see Common Parameters.

The request accepts the following data in JSON format.

LanguageCode

The language of the input documents. All documents must be in the same language.

Type: String

Length Constraints: Minimum length of 1.

Required: Yes

TextList

A list containing the text of the input documents. The list can contain a maximum of 25 documents. Each document must contain fewer that 5,000 bytes of UTF-8 encoded characters.

Type: Array of strings

Length Constraints: Minimum length of 1.

Required: Yes

Response Syntax

{
   "ErrorList": [ 
      { 
         "ErrorCode": "string",
         "ErrorMessage": "string",
         "Index": number
      }
   ],
   "ResultList": [ 
      { 
         "Index": number,
         "Sentiment": "string",
         "SentimentScore": { 
            "Mixed": number,
            "Negative": number,
            "Neutral": number,
            "Positive": number
         }
      }
   ]
}

Response Elements

If the action is successful, the service sends back an HTTP 200 response.

The following data is returned in JSON format by the service.

ErrorList

A list containing one BatchItemError object for each document that contained an error. The results are sorted in ascending order by the Index field and match the order of the documents in the input list. If there are no errors in the batch, the ErrorList is empty.

Type: Array of BatchItemError objects

ResultList

A list of BatchDetectSentimentItemResult objects containing the results of the operation. The results are sorted in ascending order by the Index field and match the order of the documents in the input list. If all of the documents contain an error, the ResultList is empty.

Type: Array of BatchDetectSentimentItemResult objects

Errors

For information about the errors that are common to all actions, see Common Errors.

BatchSizeLimitExceededException

The number of documents in the request exceeds the limit of 25. Try your request again with fewer documents.

HTTP Status Code: 400

InternalServerException

An internal server error occurred. Retry your request.

HTTP Status Code: 500

InvalidRequestException

The request is invalid.

HTTP Status Code: 400

TextSizeLimitExceededException

The size of the input text exceeds the limit. Use a smaller document.

HTTP Status Code: 400

UnsupportedLanguageException

Amazon Comprehend can't process the language of the input text. For all APIs except DetectDominantLanguage, Amazon Comprehend accepts only English or Spanish text. For the DetectDominantLanguage API, Amazon Comprehend detects 100 languages. For a list of languages, see Detecting the Primary Language

HTTP Status Code: 400

See Also

For more information about using this API in one of the language-specific AWS SDKs, see the following: