(Swift) S3 Upload with Transfer Acceleration

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

Note: This example requires Chilkat v11.0.0 or greater.

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func chilkatTest() {
    var success: Bool = false

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

    let http = CkoHttp()!

    http.awsAccessKey = "AWS_ACCESS_KEY"
    http.awsSecretKey = "AWS_SECRET_KEY"

    // Make sure to set your AWS region correctly
    http.awsRegion = "us-east-1"
    var bucketName: String? = "chilkat200"
    var objectName: String? = "starfish/starfish.jpg"
    var awsService: String? = "s3"
    var httpVerb: String? = "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:
    var numSecondsValid: Int = 86400

    // Choose between a URL beginning with "http://" or "https://"...
    var bUseHttps: Bool = false

    // Generate the pre-signed URL that will use s3-accelerate.amazonaws.com
    var preSignedUrl: String? = http.s3_GenPresignedUrl(httpVerb, useHttps: bUseHttps, bucketName: bucketName, path: objectName, numSecondsValid: numSecondsValid, awsService: awsService)
    if http.lastMethodSuccess == false {
        print("\(http.lastErrorText!)")
        return
    }

    // The following URL can be copy-and-pasted into a browser..
    print("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.)
    let resp = CkoHttpResponse()!
    success = http.httpFile("PUT", url: preSignedUrl, localFilePath: "qa_data/jpg/starfish.jpg", contentType: "image/jpg", response: resp)
    if success == false {
        print("\(http.lastErrorText!)")
        return
    }

    print("response status code = \(resp.statusCode.intValue)")
    print("response body size: \(resp.contentLength)")
    if resp.contentLength > 0 {
        print("response body:")
        print("\(resp.bodyStr!)")
    }


}