Create a serverless pipeline to translate large documents with Amazon Translate

In our previous post, we described how to translate documents using the real-time translation API from Amazon Translate and AWS Lambda. However, this method may not work for files that are too large. They may take too much time, triggering the 15-minute timeout limit of Lambda functions. One can use batch API, but this is available only in seven AWS Regions (as of this blog's publication). To enable translation of large files in regions where Batch Translation is not supported, we created the following solution.