Copy Coding

               <dependency>

                   <groupId>com.google.firebase</groupId>

                   <artifactId>firebase-admin</artifactId>

                   <version>6.12.1</version>

                </dependency>

package com.copycoding.firebase;

public class Member {

        String id;

        String name;

        int age;

        String tel;

        public String getId() {

               return id;

        }

        public void setId(String id) {

               this.id = id;

        }

        public String getName() {

               return name;

        }

        public void setName(String name) {

               this.name = name;

        }

        public int getAge() {

               return age;

        }

        public void setAge(int age) {

               this.age = age;

        }

        public String getTel() {

               return tel;

        }

        public void setTel(String tel) {

               this.tel = tel;

        }

}

package com.copycoding.firebase;

public interface FirebaseService {

        public insertMember(Member member) throws Exception;

        public Member getMemberDetail(String id) throws Exception;

        public String updateMember(Member member) throws Exception;

        public string deleteMember(String id) throws Exception;

}

package com.copycoding.firebase;

import org.springframework.stereotype.Service;

import com.google.api.core.ApiFuture;

import com.google.cloud.firestore.DocumentReference;

import com.google.cloud.firestore.DocumentSnapshot;

import com.google.cloud.firestore.Firestore;

import com.google.cloud.firestore.WriteResult;

import com.google.firebase.cloud.FirestoreClient;

@Service

public class FirebaseServiceImpl implements FirebaseService {

        public static final String COLLECTION_NAME="member";

        @Override

        public String insertMember(Member member) throws Exception {

               Firestore firestore = FirestoreClient.getFirestore();

               ApiFuture<WriteResult> apiFuture = firestore.collection(COLLECTION_NAME).document(member.getId()).set(member);

               return apiFuture.get().getUpdateTime().toString();

        }

        @Override

        public Member getMemberDetail(String id) throws Exception {

               Firestore firestore = FirestoreClient.getFirestore();

               DocumentReference documentReference = firestore.collection(COLLECTION_NAME).document(id);

               ApiFuture<DocumentSnapshot> apiFuture = documentReference.get();

               DocumentSnapshot documentSnapshot = apiFuture.get();

               Member member = null;

               if(documentSnapshot.exists()) {

                       member = documentSnapshot.toObject(Member.class);

                       return member;

               } else {

                       return null;

               }

        }

        @Override

        public String updateMember(Member member) throws Exception {

               Firestore firestore = FirestoreClient.getFirestore();

               ApiFuture<WriteResult> apiFuture = firestore.collection(COLLECTION_NAME).document(member.getId()).set(member);

               return apiFuture.get().getUpdateTime().toString();

        }

        @Override

        public String deleteMember(String id) throws Exception {

               Firestore firestore = FirestoreClient.getFirestore();

               ApiFuture<WriteResult> apiFuture = firestore.collection(COLLECTION_NAME).document(id).delete();

               return "Document id :" + id + " delete";

        }

}

package com.copycoding.firebase;

import org.springframework.beans.factory.annotation.Autowired;

import org.springframework.web.bind.annotation.GetMapping;

import org.springframework.web.bind.annotation.RequestParam;

import org.springframework.web.bind.annotation.RestController;

@RestController

public class FirebaseController {

        @Autowired

        FirebaseService firebaseService;

        @GetMapping("/insertMember")

        public String insertMember(@RequestParam Member member) throws Exception {

               return firebaseService.insertMember(member);

        }

        @GetMapping("/getMemberDetail")

        public Member getMemberDetail(@RequestParam String id) throws Exception {

               return firebaseService.getMemberDetail(id);

        }

        @GetMapping("/updateMember")

        public String updateMember(@RequestParam Member member) throws Exception {

               return firebaseService.updateMember(member);

        }

        @GetMapping("/deleteMember")

        public String deleteMember(@RequestParam String id) throws Exception {

               return firebaseService.deleteMember(id);

        }

}

package com.copycoding.firebase;

import java.io.FileInputStream;

import javax.annotation.PostConstruct;

import org.springframework.stereotype.Service;

import com.google.auth.oauth2.GoogleCredentials;

import com.google.firebase.FirebaseApp;

import com.google.firebase.FirebaseOptions;

@Service

public class FirebaseInitialize {

        @PostConstruct

    public void initialize() {

        try {

        FileInputStream serviceAccount =

                  new FileInputStream("./copycodingServiceAccount.json");

                FirebaseOptions options = new FirebaseOptions.Builder()

                  .setCredentials(GoogleCredentials.fromStream(serviceAccount))

                  .setDatabaseUrl("https://copycoding-bca04.firebaseio.com")

                  .build();

                FirebaseApp.initializeApp(options);

            } catch (Exception e) {

                e.printStackTrace();

            }

        }

}

{

“member” : [

 {

   "id": "a",

   "name": "copy",

   "age": 11,

   "tel": "000-0000-0000"

 },

 {

   "id": "b",

   "name": "coding",

   "age": 22,

   "tel": "000-1111-1111"

 },

 {

   "id": "c",

   "name": "test",

   "age": 33,

   "tel": "000-2222-2222"

 },

 {

   "id": "d",

   "name": "hohoho",

   "age": 44,

   "tel": "000-3333-3333"

 }

]

}

<!-- The core Firebase JS SDK is always required and must be listed first -->

<script src="https://www.gstatic.com/firebasejs/7.14.5/firebase-app.js"></script>

<!-- TODO: Add SDKs for Firebase products that you want to use

     https://firebase.google.com/docs/web/setup#available-libraries -->

<script src="https://www.gstatic.com/firebasejs/7.14.5/firebase-analytics.js"></script>

<script>

  // Your web app's Firebase configuration

  var firebaseConfig = {

    apiKey: "AIzaSyCkC3cqbmGfb4XGCX_BUaLKTePvE3em0sU",

    authDomain: "copycoding-bca04.firebaseapp.com",

    databaseURL: "https://copycoding-bca04.firebaseio.com",

    projectId: "copycoding-bca04",

    storageBucket: "copycoding-bca04.appspot.com",

    messagingSenderId: "413154097054",

    appId: "1:413154097054:web:046f67449283eca596488f",

    measurementId: "G-6JQFB5C1Z7"

  };

  // Initialize Firebase

  firebase.initializeApp(firebaseConfig);

  firebase.analytics();

</script>

var firebaseConfig = {

    apiKey: "AIzaSyCXXxxxXXXXxxxxXXXXxxXXxXXXxxXXxXXX0sU",

    authDomain: "copycoding-bca04.firebaseapp.com",

    databaseURL: "https://copycoding-bca04.firebaseio.com",

    projectId: "copycoding-bca04",

    storageBucket: "copycoding-bca04.appspot.com",

    messagingSenderId: "41323232323232324",

    appId: "1:41312323232323:web:02323232323232323232323238f",

    measurementId: "G-623reddfhgjkhfgsdZ7"

}

module.exports = firebaseConfig;

{

  "type": "service_account",

  "project_id": "copycoding-bca04",

  "private_key_id": "4728098675uygf65yfdertu7fgy9upjoi87tgyi5rytt36",

  "private_key": "-----BEGIN PRIVATE KEY-----\nMIIEvQ=\n-----END PRIVATE KEY-----\n",

  "client_email": "firebase-adminsdk-vdj8s@copycoding-bca04.iam.gserviceaccount.com",

  "client_id": "118876654423786789765453",

  "auth_uri": "https://accounts.google.com/o/oauth2/auth",

  "token_uri": "https://oauth2.googleapis.com/token",

  "auth_provider_x509_cert_url": "https://www.googleapis.com/oauth2/certs",

  "client_x509_cert_url": "https://www.googleapis.com/serviceaccount.com"

}

// Imports

const firestoreService = require('firestore-export-import');

const firebaseConfig = require('./config.js');

const serviceAccount = require('./serviceAccount.json');

// JSON To Firestore

const jsonToFirestore = async () => {

  try {

    console.log('Initialzing Firebase');

    await firestoreService.initializeApp(serviceAccount, firebaseConfig.databaseURL);

    console.log('Firebase Initialized');

    await firestoreService.restore('./member.json');

    console.log('Upload Success');

  }

  catch (error) {

    console.log(error);

  }

};

jsonToFirestore();