There are more AWS SDK examples available in the [AWS Doc SDK Examples](https://github.com/awsdocs/aws-doc-sdk-examples) GitHub repo.

# Use `UploadMultipartPart` with an AWS SDK or CLI
<a name="glacier_example_glacier_UploadMultipartPart_section"></a>

The following code examples show how to use `UploadMultipartPart`.

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#### [ CLI ]

**AWS CLI**  
The following command uploads the first 1 MiB (1024 x 1024 bytes) part of an archive:  

```
aws glacier upload-multipart-part --body part1 --range 'bytes 0-1048575/*' --account-id - --vault-name my-vault --upload-id 19gaRezEXAMPLES6Ry5YYdqthHOC_kGRCT03L9yetr220UmPtBYKk-OssZtLqyFu7sY1_lR7vgFuJV6NtcV5zpsJ
```
Amazon Glacier requires an account ID argument when performing operations, but you can use a hyphen to specify the in-use account.  
The body parameter takes a path to a part file on the local filesystem. The range parameter takes an HTTP content range indicating the bytes that the part occupies in the completed archive. The upload ID is returned by the `aws glacier initiate-multipart-upload` command and can also be obtained by using `aws glacier list-multipart-uploads`.  
For more information on multipart uploads to Amazon Glacier using the AWS CLI, see Using Amazon Glacier in the *AWS CLI User Guide*.  
+  For API details, see [UploadMultipartPart](https://awscli.amazonaws.com/v2/documentation/api/latest/reference/glacier/upload-multipart-part.html) in *AWS CLI Command Reference*. 

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#### [ JavaScript ]

**SDK for JavaScript (v2)**  
 There's more on GitHub. Find the complete example and learn how to set up and run in the [AWS Code Examples Repository](https://github.com/awsdocs/aws-doc-sdk-examples/tree/main/javascript/example_code/glacier#code-examples). 
Create a multipart upload of 1 megabyte chunks of a Buffer object.  

```
// Create a new service object and some supporting variables
var glacier = new AWS.Glacier({ apiVersion: "2012-06-01" }),
  vaultName = "YOUR_VAULT_NAME",
  buffer = new Buffer(2.5 * 1024 * 1024), // 2.5MB buffer
  partSize = 1024 * 1024, // 1MB chunks,
  numPartsLeft = Math.ceil(buffer.length / partSize),
  startTime = new Date(),
  params = { vaultName: vaultName, partSize: partSize.toString() };

// Compute the complete SHA-256 tree hash so we can pass it
// to completeMultipartUpload request at the end
var treeHash = glacier.computeChecksums(buffer).treeHash;

// Initiate the multipart upload
console.log("Initiating upload to", vaultName);
// Call Glacier to initiate the upload.
glacier.initiateMultipartUpload(params, function (mpErr, multipart) {
  if (mpErr) {
    console.log("Error!", mpErr.stack);
    return;
  }
  console.log("Got upload ID", multipart.uploadId);

  // Grab each partSize chunk and upload it as a part
  for (var i = 0; i < buffer.length; i += partSize) {
    var end = Math.min(i + partSize, buffer.length),
      partParams = {
        vaultName: vaultName,
        uploadId: multipart.uploadId,
        range: "bytes " + i + "-" + (end - 1) + "/*",
        body: buffer.slice(i, end),
      };

    // Send a single part
    console.log("Uploading part", i, "=", partParams.range);
    glacier.uploadMultipartPart(partParams, function (multiErr, mData) {
      if (multiErr) return;
      console.log("Completed part", this.request.params.range);
      if (--numPartsLeft > 0) return; // complete only when all parts uploaded

      var doneParams = {
        vaultName: vaultName,
        uploadId: multipart.uploadId,
        archiveSize: buffer.length.toString(),
        checksum: treeHash, // the computed tree hash
      };

      console.log("Completing upload...");
      glacier.completeMultipartUpload(doneParams, function (err, data) {
        if (err) {
          console.log("An error occurred while uploading the archive");
          console.log(err);
        } else {
          var delta = (new Date() - startTime) / 1000;
          console.log("Completed upload in", delta, "seconds");
          console.log("Archive ID:", data.archiveId);
          console.log("Checksum:  ", data.checksum);
        }
      });
    });
  }
});
```
+  For more information, see [AWS SDK for JavaScript Developer Guide](https://docs.aws.amazon.com/sdk-for-javascript/v2/developer-guide/glacier-example-multipart-upload.html). 
+  For API details, see [UploadMultipartPart](https://docs.aws.amazon.com/goto/AWSJavaScriptSDK/glacier-2012-06-01/UploadMultipartPart) in *AWS SDK for JavaScript API Reference*. 

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