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I am trying to copy a blob in one container to another storage account in azure.

I am using @azure/storage-blob 12.0.0 but I cannot figure out how to copy a blob to another container without downloading it.

Maybe someone can help and post a quick example.

Stefan

Simon Krumböck
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1 Answers1

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If you want to copy blob with nodejs sdk @azure/storage-blob, you can use the method BlobClient.beginCopyFromURL to implement it. For more details, please refer to the document.

For example(copy blob from one container to another container in same storage account)

const { BlobServiceClient, StorageSharedKeyCredential } = require("@azure/storage-blob");

async function copy(){

    const account = "blobstorage0516";
    const accountKey=""
    const cert = new StorageSharedKeyCredential(account,accountKey)
    const blobServiceClient = new BlobServiceClient(
      `https://${account}.blob.core.windows.net`,
      cert
    );
    
    const sourceContainer=blobServiceClient.getContainerClient("test")
    const desContainer=blobServiceClient.getContainerClient("copy")
    //if the desContainer does not exist, please run the following code
    await desContainer.create()
    
    //copy blob
    const sourceBlob=sourceContainer.getBlobClient("emp.txt");
    const desBlob=desContainer.getBlobClient(sourceBlob.name)
    const response =await desBlob.beginCopyFromURL(sourceBlob.url);
    const result = (await response.pollUntilDone())
    console.log(result._response.status)
    console.log(result.copyStatus)
}

copy()

enter image description here

Jim Xu
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  • Anyone know if there is an additional expense copying to a different container over copying to the same container? – Gina Marano Nov 16 '20 at 07:44
  • I am copying from archive to cold which can take up to 15 hours. What is the best way to fire this off and forget? – Gina Marano Nov 16 '20 at 07:46
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    @GinaMarano Regarding the billing, please refer to https://learn.microsoft.com/en-us/rest/api/storageservices/copy-blob#remarks – Jim Xu Nov 16 '20 at 07:53