For example, remoteLogin(String user, String password) may return either a network error (Left) or a response (Right). But if there is a response, the login may still be invalid. So I want to biFlatMap the Either. In biFlatMap, if there is a network error, I want to normalize it. If there is a response, I want it to become a Left if the login is invalid, otherwise keep it a Right.
otto-dev
commented
2 years ago
Proposed function signature:
Example use case:
For example,
remoteLogin(String user, String password)may return either a network error (Left) or a response (Right). But if there is a response, the login may still be invalid. So I want tobiFlatMaptheEither. InbiFlatMap, if there is a network error, I want to normalize it. If there is a response, I want it to become aLeftif the login is invalid, otherwise keep it aRight.