Lianja

S3 Upload with Transfer Acceleration

See more Amazon S3 Examples

Demonstrates how to upload from a pre-signed URL with transfer acceleration. Lianja

llSuccess = .F.

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

loHttp = createobject("CkHttp")

loHttp.AwsAccessKey = "AWS_ACCESS_KEY"
loHttp.AwsSecretKey = "AWS_SECRET_KEY"

// Make sure to set your AWS region correctly
loHttp.AwsRegion = "us-east-1"
lcBucketName = "chilkat200"
lcObjectName = "starfish/starfish.jpg"
lcAwsService = "s3"
lcHttpVerb = "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.
loHttp.AwsEndpoint = "s3-accelerate.amazonaws.com"

// The signed URL will be valid for this number of seconds:
lnNumSecondsValid = 86400

// Choose between a URL beginning with "http://" or "https://"...
llBUseHttps = .T.

// Generate the pre-signed URL that will use s3-accelerate.amazonaws.com
lcPreSignedUrl = loHttp.S3_GenPresignedUrl(lcHttpVerb,llBUseHttps,lcBucketName,lcObjectName,lnNumSecondsValid,lcAwsService)
if (loHttp.LastMethodSuccess = .F.) then
    ? loHttp.LastErrorText
    release loHttp
    return
endif

// The following URL can be copy-and-pasted into a browser..
? "Presigned URL for Upload: " + lcPreSignedUrl

// 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.)
loResp = createobject("CkHttpResponse")
llSuccess = loHttp.HttpFile("PUT",lcPreSignedUrl,"qa_data/jpg/starfish.jpg","image/jpg",loResp)
if (llSuccess = .F.) then
    ? loHttp.LastErrorText
    release loHttp
    release loResp
    return
endif

? "response status code = " + str(loResp.StatusCode)
? "response body size: " + str(loResp.ContentLength)
if (loResp.ContentLength > 0) then
    ? "response body:"
    ? loResp.BodyStr
endif



release loHttp
release loResp