post https://sandbox.belvo.com/api/incomes/
Retrieve income insights for checking and savings accounts from a
specific link. You can receive insights for a period of up to 365 days,
depending on the transaction history available for each
bank.
Request transactions first
Before requesting incomes, you must first make a POST Retrieve Transactions request.
If you do not request the transactions, the analyses won't be able to be conducted.