Firebase serialization names

Question

I created an object to send some data to firebase. As an example, I use firebase user example:

public class User {
    public String username;
    public Str         


        

Answer 1

What you are looking for is the feature of SDK Version 9.2 in which you can now use a new @PropertyName attribute to specify the name to use when serializing a field from a Java model class to the database. This replaces the @JsonProperty attribute.

@PropertyName("Username")
public String username;
@PropertyName("Email")
public String email;

See also this post in which Frank van Puffelen explains very clearly this concept.