Why is there no options to set node and edge nonnull on connection field?

[mz-ericlee]

I've been trying to set nonnull to node and edge on connection field because a frontend engineer told me that he've got a lot of things to handler if node and edge are nullable. is there a specific reason node and edge set to nullable?

[erikwrede]

There is an issue tracking this in graphene: https://github.com/graphql-python/graphene/issues/968 Additionally, you could try his for a fix: https://github.com/graphql-python/graphene-sqlalchemy/pull/261