Pretty sure that when it comes to write transactions, such as bank transactions, you want them to be executed on a source of truth with enforces consistency, not eventual consistency. Any client software should not be trusted -- especially one written by a silly programmer who uses a cache as the source of truth.
Pretty sure that when it comes to write transactions, such as bank transactions, you want them to be executed on a source of truth with enforces consistency, not eventual consistency. Any client software should not be trusted -- especially one written by a silly programmer who uses a cache as the source of truth.