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(Unicode C++) S3 List Bucket Objects (Bucket-in-Path)Demonstrates how to fetch a list of objects in an S3 bucket, but using the bucket-in-path request format instead of putting the bucket name in the HOST header.
#include <CkRestW.h> #include <CkAuthAwsW.h> #include <CkStringBuilderW.h> #include <CkXmlW.h> void ChilkatSample(void) { // This example requires the Chilkat API to have been previously unlocked. // See Global Unlock Sample for sample code. CkRestW rest; // Connect to the Amazon AWS REST server. bool bTls = true; int port = 443; bool bAutoReconnect = true; bool success = rest.Connect(L"s3.amazonaws.com",port,bTls,bAutoReconnect); // ---------------------------------------------------------------------------- // Important: For buckets created in regions outside us-east-1, // there are three important changes that need to be made. // See Working with S3 Buckets in Non-us-east-1 Regions for the details. // ---------------------------------------------------------------------------- // Provide AWS credentials for the REST call. CkAuthAwsW authAws; authAws.put_AccessKey(L"AWS_ACCESS_KEY"); authAws.put_SecretKey(L"AWS_SECRET_KEY"); authAws.put_ServiceName(L"s3"); success = rest.SetAuthAws(authAws); // The bucket name is "chilkat100" CkStringBuilderW sbResponse; success = rest.FullRequestNoBodySb(L"GET",L"/chilkat100",sbResponse); if (success != true) { wprintf(L"%s\n",rest.lastErrorText()); return; } int statusCode = rest.get_ResponseStatusCode(); wprintf(L"Response status code = %d\n",statusCode); CkXmlW xml; xml.LoadSb(sbResponse,true); wprintf(L"%s\n",xml.getXml()); if (statusCode != 200) { wprintf(L"Failed. See error information in the XML.\n"); return; } // Use this online tool to generate code from sample XML: // Generate Code to Create XML const wchar_t *Key = 0; const wchar_t *LastModified = 0; const wchar_t *ETag = 0; const wchar_t *SizeDecimalStr = 0; const wchar_t *ID = 0; const wchar_t *DisplayName = 0; const wchar_t *StorageClass = 0; const wchar_t *Name = xml.getChildContent(L"Name"); int MaxKeys = xml.GetChildIntValue(L"MaxKeys"); const wchar_t *IsTruncated = xml.getChildContent(L"IsTruncated"); int i = 0; int count_i = xml.NumChildrenHavingTag(L"Contents"); while (i < count_i) { xml.put_I(i); Key = xml.getChildContent(L"Contents[i]|Key"); LastModified = xml.getChildContent(L"Contents[i]|LastModified"); ETag = xml.getChildContent(L"Contents[i]|ETag"); SizeDecimalStr = xml.getChildContent(L"Contents[i]|Size"); ID = xml.getChildContent(L"Contents[i]|Owner|ID"); DisplayName = xml.getChildContent(L"Contents[i]|Owner|DisplayName"); StorageClass = xml.getChildContent(L"Contents[i]|StorageClass"); i = i + 1; } wprintf(L"Success.\n"); } |
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