This document provides detailed information about the Amazon Lex V2 API actions and their parameters.
For information about the IAM access control permissions you need to use this API, see Identity-based policies for Amazon Lex.
If you use a custom HTTP client to call Amazon Lex Model Building V2 operations, you must set the "Content-Type" HTTP header to "application/x-amz-json-1.1". Otherwise, you receive an HTTP 404 - UnknownOperationException in the response.
Amazon Lex Model Building V2 operations return the responses with the "application/x-amz-json-1.1" content type.
You can use AWS SDKs
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Cryptographically sign your service requests
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Retry requests
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Handle error responses
The following resources provide additional information about the Amazon Lex V2 API.
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AWS General Reference
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AWS Command Line Interface
