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(MFC) Glacier Upload Archive

Demonstrates how to add an archive to a vault. For a successful upload, your data is durably persisted. In response, Amazon S3 Glacier (Glacier) returns the archive ID in the x-amz-archive-id header of the response. You should save the archive ID returned so that you can access the archive later.

Note: This example requires Chilkat v9.5.0.78 or greater.

Chilkat C/C++ Library Downloads

MS Visual C/C++ Libs

See Also: Using MFC CString in Chilkat

#include <CkRest.h>
#include <CkAuthAws.h>
#include <CkCrypt2.h>
#include <CkStream.h>

void ChilkatSample(void)
    {
    CkString strOut;

    // This example requires the Chilkat API to have been previously unlocked.
    // See Global Unlock Sample for sample code.

    CkRest rest;

    // Connect to the Amazon AWS REST server in the desired region.
    bool bTls = true;
    int port = 443;
    bool bAutoReconnect = true;
    bool success = rest.Connect("glacier.us-west-2.amazonaws.com",port,bTls,bAutoReconnect);

    // Provide AWS credentials.
    CkAuthAws authAws;
    authAws.put_AccessKey("AWS_ACCESS_KEY");
    authAws.put_SecretKey("AWS_SECRET_KEY");
    authAws.put_ServiceName("glacier");
    authAws.put_Region("us-west-2");

    success = rest.SetAuthAws(authAws);

    // --------------------------------------------------------------------------
    // Note: The above REST connection and setup of the AWS credentials
    // can be done once.  After connecting, any number of REST calls can be made.
    // The "auto reconnect" property passed to rest.Connect indicates that if
    // the connection is lost, a REST method call will automatically reconnect
    // if needed.
    // --------------------------------------------------------------------------

    // 
    // For more information, see Glacier Upload Archive Reference Documentation
    // 
    rest.AddHeader("x-amz-glacier-version","2012-06-01");

    // We'll need to pre-compute the SHA256 tree hash and the SHA256 linear hash.
    // The hashes are added in the following request headers:

    // x-amz-sha256-tree-hash: SHA256 tree hash
    // x-amz-content-sha256: SHA256 linear hash

    // The file we'll be uploading
    const char *filePath = "qa_data/zips/somethingBig.zip";

    CkCrypt2 crypt;
    crypt.put_HashAlgorithm("sha256-tree-hash");
    crypt.put_EncodingMode("hexlower");
    const char *treeHashHex = crypt.hashFileENC(filePath);
    rest.AddHeader("x-amz-sha256-tree-hash",treeHashHex);

    crypt.put_HashAlgorithm("sha256");
    const char *linearHashHex = crypt.hashFileENC(filePath);
    authAws.put_PrecomputedSha256(linearHashHex);

    // We can optionally add a description
    // In this case, we'll set the description equal to the local filepath of the file we're uploading.
    rest.AddHeader("x-amz-archive-description",filePath);

    // Upload the file to the vault named "chilkat"
    CkStream fileStream;
    fileStream.put_SourceFile(filePath);

    const char *responseStr = rest.fullRequestStream("POST","/AWS_ACCOUNT_ID/vaults/chilkat/archives",fileStream);
    if (rest.get_LastMethodSuccess() != true) {
        strOut.append(rest.lastErrorText());
        strOut.append("\r\n");
        SetDlgItemText(IDC_EDIT1,strOut.getUnicode());
        return;
    }

    int respStatusCode = rest.get_ResponseStatusCode();
    if (respStatusCode >= 400) {
        strOut.append("Response Status Code = ");
        strOut.appendInt(respStatusCode);
        strOut.append("\r\n");
        strOut.append("Response Header:");
        strOut.append("\r\n");
        strOut.append(rest.responseHeader());
        strOut.append("\r\n");
        strOut.append("Response Body:");
        strOut.append("\r\n");
        strOut.append(responseStr);
        strOut.append("\r\n");
        SetDlgItemText(IDC_EDIT1,strOut.getUnicode());
        return;
    }

    // Success is indicated by a 201 response status with an empty response body.
    strOut.append("response status code = ");
    strOut.appendInt(respStatusCode);
    strOut.append("\r\n");

    // If successful, the response header looks like this.
    // The Location and x-amz-archive-id are two items of information we may wish to save..

    // HTTP/1.1 201 Created
    // x-amzn-RequestId: AAABZpJrTyioDC_HsOmHae8EZp_uBSJr6cnGOLKp_XJCl-Q
    // Date: Wed, 10 Feb 2017 12:00:00 GMT
    // x-amz-sha256-tree-hash: beb0fe31a1c7ca8c6c04d574ea906e3f97b31fdca7571defb5b44dca89b5af60
    // Location: /111122223333/vaults/examplevault/archives/NkbByEejwEggmBz2fTH ... GlqrEXAMPLEArchiveId
    // x-amz-archive-id: NkbByEejwEggmBz2fTHgJrg0XBoDfjP4q6iu87-TjhqG6eGoOY9Z8i1_AUyUsu ... BfGlqrEXAMPLEArchiveId
    // 

    const char *archiveId = rest.responseHdrByName("x-amz-archive-id");
    strOut.append("x-amz-archive-id = ");
    strOut.append(archiveId);
    strOut.append("\r\n");

    const char *location = rest.responseHdrByName("Location");
    strOut.append("Location = ");
    strOut.append(location);
    strOut.append("\r\n");


    SetDlgItemText(IDC_EDIT1,strOut.getUnicode());

    }

 

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