.NET Core C#

S3 Upload with Transfer Acceleration

See more Amazon S3 Examples

Demonstrates how to upload from a pre-signed URL with transfer acceleration. .NET Core C#

bool success = false;

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

Chilkat.Http http = new Chilkat.Http();

http.AwsAccessKey = "AWS_ACCESS_KEY";
http.AwsSecretKey = "AWS_SECRET_KEY";

// Make sure to set your AWS region correctly
http.AwsRegion = "us-east-1";
string bucketName = "chilkat200";
string objectName = "starfish/starfish.jpg";
string awsService = "s3";
string httpVerb = "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.
http.AwsEndpoint = "s3-accelerate.amazonaws.com";

// The signed URL will be valid for this number of seconds:
int numSecondsValid = 86400;

// Choose between a URL beginning with "http://" or "https://"...
bool bUseHttps = true;

// Generate the pre-signed URL that will use s3-accelerate.amazonaws.com
string preSignedUrl = http.S3_GenPresignedUrl(httpVerb,bUseHttps,bucketName,objectName,numSecondsValid,awsService);
if (http.LastMethodSuccess == false) {
    Debug.WriteLine(http.LastErrorText);
    return;
}

// The following URL can be copy-and-pasted into a browser..
Debug.WriteLine("Presigned URL for Upload: " + 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.)
Chilkat.HttpResponse resp = new Chilkat.HttpResponse();
success = http.HttpFile("PUT",preSignedUrl,"qa_data/jpg/starfish.jpg","image/jpg",resp);
if (success == false) {
    Debug.WriteLine(http.LastErrorText);
    return;
}

Debug.WriteLine("response status code = " + Convert.ToString(resp.StatusCode));
Debug.WriteLine("response body size: " + Convert.ToString((int) resp.ContentLength));
if ((int) resp.ContentLength > 0) {
    Debug.WriteLine("response body:");
    Debug.WriteLine(resp.BodyStr);
}