Need a simple code for Analyze Expense process and write the data to CSV, Please help

Hi,

you can find an example of how to use AnalyzeExpense in different languages here: https://docs.aws.amazon.com/textract/latest/dg/analyzing-document-expense.html

The output of the API call is a nested JSON object which isn't easily transformed to a CSV file. See an example output here. You could write your own mapper depending on the fields/structure you are interested in.