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(Unicode C) Upload File with User-Defined MetadataDemonstrates how to upload a file with user-defined metadata to the Amazon S3 service.
#include <C_CkHttpW.h> void ChilkatSample(void) { HCkHttpW http; const wchar_t *bucketName; const wchar_t *objectName; const wchar_t *localFilePath; const wchar_t *contentType; BOOL success; // This example assumes the Chilkat API to have been previously unlocked. // See Global Unlock Sample for sample code. http = CkHttpW_Create(); // Insert your AWS keys here: CkHttpW_putAwsAccessKey(http,L"AWS_ACCESS_KEY"); CkHttpW_putAwsSecretKey(http,L"AWS_SECRET_KEY"); bucketName = L"chilkat.ocean"; objectName = L"seahorse.jpg"; localFilePath = L"qa_data/jpg/seahorse.jpg"; contentType = L"image/jpg"; // User-defined metadata are name/value pairs, and are added to the HTTP request header. // Header names must begin with "x-amz-meta-" to distinguish them from other HTTP headers. // Note that Amazon S3 stores user-defined metadata keys in lowercase. // For example, to add genus=Hippocampus, we do this: CkHttpW_SetRequestHeader(http,L"x-amz-meta-genus",L"Hippocampus"); // Add a few more user-metadata key pairs. CkHttpW_SetRequestHeader(http,L"x-amz-meta-species",L"big-belly seahorse"); CkHttpW_SetRequestHeader(http,L"x-amz-meta-habitat",L"shallow tropical and temperate waters"); success = CkHttpW_S3_UploadFile(http,localFilePath,contentType,bucketName,objectName); if (success != TRUE) { wprintf(L"%s\n",CkHttpW_lastErrorText(http)); } else { wprintf(L"File uploaded.\n"); } CkHttpW_Dispose(http); } |
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