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(Swift) S3 Upload with Transfer AccelerationDemonstrates how to upload from a pre-signed URL with transfer acceleration. Note: This example requires Chilkat v11.0.0 or greater.
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!)") } } |
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