https://github.com/zeyadkhaled/firebase-query-to-excel

A Java class to process Firebase Firestore database queries and create an excel file that could be shared.
https://github.com/zeyadkhaled/firebase-query-to-excel

csv database excel firebase firebase-database firebase-realtime-database firestore java library query sharing

Last synced: 27 days ago
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A Java class to process Firebase Firestore database queries and create an excel file that could be shared.

• Host: GitHub
• URL: https://github.com/zeyadkhaled/firebase-query-to-excel
• Owner: zeyadkhaled
• Created: 2018-07-20T07:22:52.000Z (over 6 years ago)
• Default Branch: master
• Last Pushed: 2019-05-03T21:19:55.000Z (over 5 years ago)
• Last Synced: 2024-10-27T18:40:51.442Z (3 months ago)
• Topics: csv, database, excel, firebase, firebase-database, firebase-realtime-database, firestore, java, library, query, sharing
• Language: Java
• Homepage:
• Size: 2.93 KB
• Stars: 4
• Watchers: 1
• Forks: 1
• Open Issues: 0
• Metadata Files:
  • Readme: README.md

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README

        
# Firebase-Query-to-Excel

A class to process Firebase Firestore database queries and create an excel file that could be shared

## Usage

1. Add above class to your project

2. Import necessary libraries

3. To use the class in another class or activity create an instance of it

    -fieldNames String array contains the name of the fields you want to retrieve from the query. Order of names in the array is important.

```java

String[] fieldNames = {"name", "email", "id", "more"};

FirebaseDBCollectionToExcel createExcel = new FirebaseDBCollectionToExcel( fieldNames);

```

4. Within the part you call the query include the buildFileFromQuery(QueryDocumentSnapshot document ) method like so:

```java

db.collection("users").get().addOnCompleteListener(new OnCompleteListener() {

            public void onComplete(@NonNull Task task) {

                if (task.isSuccessful()) {

                

                     for ( QueryDocumentSnapshot document : task.getResult()) { //Include here

                          createExcel.buildFileFromQuery(document);

                     }

   }

  }

}

```

5. After creating the file, you can save it to the local storage using saveFileToStorage(String fileName, String dirName) method:

```java

String fileName = "File Name";

String dirName = "Directory Name";

createExcel.saveFileToStorage(fileName, dirName);

```

6. Lastly given the file is in storage, you can share it through mailing applications using the method shareFileToEmail( String subject)

  

   This method will open an intent

```java

String subject = "Email Subject";

createExcel.shareToEmail( subject);

```

## Needed improvments

- Create a ready to use importable library

## Authors

[Zeyad Khaled](https://www.linkedin.com/in/zeyadkhaled/ "Zeyad Khaled")