Java – retrofitting with firebase

Ask anyone for help This is my API method

@POST("/user/new.json")
Call createUser(@Body User user);

This is my phone in mainactivity

Retrofit retrofit=new Retrofit.Builder().baseUrl("https://XXXXXX.firebaseio.com").addConverterFactory(GsonConverterFactory.create()).build();

    Api api=retrofit.create(Api.class);

    User user=new User(1,"Sam");

    Call<User> call=api.createUser(user);
    call.enqueue(new Callback<User>() {
        @Override
        public void onResponse(Call<User> call,Response<User> response) {
            Log.d("sam","run");
        }

        @Override
        public void onFailure(Call<User> call,Throwable t) {
            Log.d("sam","error");
        }
    });

This is user java

public class User {

        int id;

        String name;

        public User(int id,String name) {
            this.id = id;
            this.name = name;
        }
    }

The output is like this: –

"user" : {"new" : {"-KBgcQTomo8xGpnv5raM" : {"id" : 1,"name" : "Sam"}}}

But I want to output: –

"user" : {"new" : {"id" : 1,"name" : "Sam"}}

This is a tutorial for retrofit + firebase

Please help

Solution

In firebase, when you post try to push the list of data stored under the URL of post Therefore, it is not possible to / user / new JSON performs post operation and does not store data under the key generated by the new firebase, such as "- kbgcqtomo8xgpnv5ram" under / user / new

If you want complete control over where you place data, you must use put However, it makes no sense to treat your new entry directly as / user / new Where will the subsequent entries be?

If you do not accept server - side key distribution, the normal solution will be to use part of the entry you will enforce uniqueness For example, a name or numeric ID may be the key of a new user so that multiple users can be added

Based on the modified API and using the name as the unique key, this is:

@POST("/user/new.json")
Call createUser(@Body User user);

Will become:

@PUT("/user/new/{name}.json")
Call createUser(@Path("name") String name,@Body User user);

And:

Call<User> call=api.createUser(user);

That would be:

Call<User> call=api.createUser(user.name,user);

The current layout is:

"user" : {"new" : {"Sam": {"id" : 1,"name" : "Sam"}}}

So future users can be added as long as they are not named Sam