Finally resolved my issue.
I found this posting:
Different format for inserting data between graphql and dgraph client - #3 by anargu
Running a mutation with the struct changed like:
EmailAddress string `json:"User.emailAddress,omitempty"`
Gives me:
The documentation should really point this issue out. As someone who is going through the test files and doesn’t have a similar situation where I’m altering the schema (with dql) AND then doing a mutation.
Regardless, I can take this as a learning experience and move on. 