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(Unicode C) S3 Upload with Transfer AccelerationDemonstrates how to upload from a pre-signed URL with transfer acceleration. Note: This example requires Chilkat v9.5.0.83 or greater.
#include <C_CkHttpW.h> #include <C_CkHttpResponseW.h> void ChilkatSample(void) { HCkHttpW http; const wchar_t *bucketName; const wchar_t *objectName; const wchar_t *awsService; const wchar_t *httpVerb; int numSecondsValid; BOOL bUseHttps; const wchar_t *preSignedUrl; HCkHttpResponseW resp; // This example requires the Chilkat API to have been previously unlocked. // See Global Unlock Sample for sample code. // Note: This example requires Chilkat v9.5.0.83 or greater. http = CkHttpW_Create(); CkHttpW_putAwsAccessKey(http,L"AWS_ACCESS_KEY"); CkHttpW_putAwsSecretKey(http,L"AWS_SECRET_KEY"); // Make sure to set your AWS region correctly CkHttpW_putAwsRegion(http,L"us-east-1"); bucketName = L"chilkat200"; objectName = L"starfish/starfish.jpg"; awsService = L"s3"; httpVerb = L"PUT"; // To use S3 acceleration, we simply set the AwsEndpoint to "s3-accelerate.amazonaws.com". // Note: You must enable transfer acceleration on your bucket. Acceleration incurs a higher cost. CkHttpW_putAwsEndpoint(http,L"s3-accelerate.amazonaws.com"); // The signed URL will be valid for this number of seconds: numSecondsValid = 86400; // Choose between a URL beginning with "http://" or "https://"... bUseHttps = FALSE; // Generate the pre-signed URL that will use s3-accelerate.amazonaws.com preSignedUrl = CkHttpW_s3_GenPresignedUrl(http,httpVerb,bUseHttps,bucketName,objectName,numSecondsValid,awsService); if (CkHttpW_getLastMethodSuccess(http) == FALSE) { wprintf(L"%s\n",CkHttpW_lastErrorText(http)); CkHttpW_Dispose(http); return; } // The following URL can be copy-and-pasted into a browser.. wprintf(L"Presigned URL for Upload: %s\n",preSignedUrl); // Here's an example of a pre-signed URL // // http://chilkat200.s3-accelerate.amazonaws.com/starfish/starfish.jpg?X-Amz-Algorithm=AWS4-HMAC-SHA256&X-Amz-Credential=AKIAIBJLOVZVXAU2AFUA%2F20200623%2Fus-east-1%2Fs3%2Faws4_request&X-Amz-Date=20200623T234049Z&X-Amz-Expires=86400&X-Amz-SignedHeaders=host&X-Amz-Signature=xxxxxeaea071178d772856c0a4e4c0114a8d9992f0d0812955e490d0exxxxxxx // // Upload a local file using the pre-signed URL. // (Chilkat provides other methods to upload file data directly from binary or text data in memory.) resp = CkHttpW_PFile(http,L"PUT",preSignedUrl,L"qa_data/jpg/starfish.jpg",L"image/jpg",FALSE,FALSE); if (CkHttpW_getLastMethodSuccess(http) == FALSE) { wprintf(L"%s\n",CkHttpW_lastErrorText(http)); CkHttpW_Dispose(http); return; } wprintf(L"response status code = %d\n",CkHttpResponseW_getStatusCode(resp)); wprintf(L"response body size: %d\n",CkHttpResponseW_getContentLength(resp)); if (CkHttpResponseW_getContentLength(resp) > 0) { wprintf(L"response body:\n"); wprintf(L"%s\n",CkHttpResponseW_bodyStr(resp)); } CkHttpResponseW_Dispose(resp); CkHttpW_Dispose(http); } |
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