CODEWITHSUNDEEP
node.jsazureazure-blob-storageazure-node-sdk
Cedric G.
Cedric G.

Reputation: 201

Blob Storage Azure and javascript, how to list all snapshots for a specific blob

Beginning a nodejs project, I need to retrieve the latest snapshot (and its metadata) for a specific blob. I'm using the Azure Blob storage client library v12 for JavaScript.

I'm not sure but I only found a method linked to the ContainerClient permitting to list all the blobs and snapshot within the container. Imo it's not for me very efficient in term of performance.

Is there a way to directly get the latest snapshot of a known blob or at least get all the snapshots ?

//construct of the blob storage connection
const blobServiceClient = new BlobServiceClient(
    `https://${account}.blob.core.windows.net/`,
    sharedKeyCredential
);
//target application container
let containerClient = blobServiceClient.getContainerClient(app);
blobClient = containerClient.getBlobClient(filename); //ok
//blobSnapshots = containerClient.getSnapshots(filename); // nok

The method in the last commented line for sure doesnt exist but is there an equivalent method ?

Upvotes: 1

Views: 1034

Answers (1)

Gaurav Mantri
Gaurav Mantri

Reputation: 136196

Is there a way to directly get the latest snapshot of a known blob

Unfortunately no. You will need to list all snapshots of a blob and sort them reverse chronologically based on snapshot date/time and pick the 1st blob. That would be the latest snapshot.

or at least get all the snapshots ?

You will need to call listBlobsFlat method with the following options:

Upvotes: 4

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