How to delete file from the firebase using file url in node.js ?
Last Updated :
07 Mar, 2024
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To delete a file from the Firebase storage we need a reference to store the file in storage. As we only have the file URL we need to create a reference object of the file in Firebase storage and then delete that file.
Deleting a file using the file URL can be done in two steps -
- Get the reference to the storage using the refFromUrl method from Firebase. storage.
- Deleting the file using the reference of the file in storage obtained from Step 1.
The method refFromUrl returns a reference to that file and can take two types of file URLs as input -
- gs:// URL, for example, gs://bucket/files/image.png
- The download URL is taken from object metadata.
Example 1: Deleting a file from the given file URL using the refFromURL method.
const fileUrl =
'https://firebasestorage.googleapis.com/b/bucket/o/images%20geeksforgeeks.jpg';
// Create a reference to the file to delete
const fileRef = storage.refFromURL(fileUrl);
console.log("File in database before delete exists : "
+ fileRef.exists())
// Delete the file using the delete() method
fileRef.delete().then(function () {
// File deleted successfully
console.log("File Deleted")
}).catch(function (error) {
// Some Error occurred
});
console.log("File in database after delete exists : "
+ fileRef.exists())
Output:
File in database before delete exists : true File Deleted File in database after delete exists : false
Example 2: Deleting a file using bucket gs:// URL
// gs Bucket URL
const fileUrl = 'gs://bucket/geeksforgeeks/image.png';
// Create a reference to the file to delete
const fileRef = storage.refFromURL(fileUrl);
console.log("File in database before delete exists : "
+ fileRef.exists())
// Delete the file using the delete() method
fileRef.delete().then(function () {
// File deleted successfully
console.log("File Deleted")
}).catch(function (error) {
// Some Error occurred
});
console.log("File in database after delete exists : "
+ fileRef.exists())
Output :
File in database before delete exists : true File Deleted File in database after delete exists : false
