How to check existence of soft deleted file in Azure blob container with node js?

Question

I have file which was stored in some Azure blob directory "folder1/folder2/file.txt". This file was soft deleted - I can see it in Azure web console. I need to have function which checks this file existence.

I tried library "azure-storage". It perfectly works with NOT removed files:

const blobService = azure.createBlobService(connectingString);
blobService.doesBlobExist(container, blobPath, callback)

May be anyone knows how use same approach with soft removed files?

I tied with lib "@azure/storage-blob". But I stuck with endless entities there (BlobServiceClient, ContainerItem, BlobClient, ContainerClient, etc) and couldn't find way to see particular file in particular blob directory.

Pravallika KV · Accepted Answer · 2022-12-06 10:18:25Z

Following this MSDOC, I got to restore the Soft deleted blobs and their names with the below code snippet.

const { BlobServiceClient } = require('@azure/storage-blob');
const  connstring = "DefaultEndpointsProtocol=https;AccountName=kvpstorageaccount;AccountKey=<Storage_Account_Key>;EndpointSuffix=core.windows.net"

if (!connstring) throw  Error('Azure Storage Connection string not found');
const  blobServiceClient = BlobServiceClient.fromConnectionString(connstring);

async  function  main(){
const  containerName = 'kpjohncontainer';
const  blobName = 'TextFile05.txt';
const  containerClient = blobServiceClient.getContainerClient(containerName);
undeleteBlob(containerClient, blobName)

}

main()
.then(() =>  console.log(`done`))
.catch((ex) =>  console.log(ex.message));

async  function  undeleteBlob(containerClient, blobName){

const  blockBlobClient = await  containerClient.getBlockBlobClient(blobName);
await  blockBlobClient.undelete(); //to restore the deleted blob

console.log(`undeleted blob ${blobName}`);
}

Output:

enter image description here

To check if the blob exists and if exists but in Soft-deleted state, I found the relevant code but it’s in C# provided by @Gaurav Mantri. To achieve the same in NodeJS refer here.

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