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(PHP Extension) REST Stream Response to File (Streaming Download) (Amazon S3)Demonstrates how to stream the response body directly to a file. (The example shows how to stream a JPG from the Amazon S3 service.)
<?php // The version number (9_5_0) should match version of the Chilkat extension used, omitting the micro-version number. // For example, if using Chilkat v9.5.0.48, then include as shown here: include("chilkat_9_5_0.php"); // This example requires the Chilkat API to have been previously unlocked. // See Global Unlock Sample for sample code. $rest = new CkRest(); // Connect to the Amazon AWS REST server. $bTls = true; $port = 443; $bAutoReconnect = true; $success = $rest->Connect('s3.amazonaws.com',$port,$bTls,$bAutoReconnect); // ---------------------------------------------------------------------------- // Important: For buckets created in regions outside us-east-1, // there are three important changes that need to be made. // See Working with S3 Buckets in Non-us-east-1 Regions for the details. // ---------------------------------------------------------------------------- // Provide AWS credentials for the REST call. $authAws = new CkAuthAws(); $authAws->put_AccessKey('AWS_ACCESS_KEY'); $authAws->put_SecretKey('AWS_SECRET_KEY'); $authAws->put_ServiceName('s3'); $success = $rest->SetAuthAws($authAws); // Set the bucket name via the HOST header. // In this case, the bucket name is "chilkat100". $rest->put_Host('chilkat100.s3.amazonaws.com'); // Send the request to download the JPG. $success = $rest->SendReqNoBody('GET','/starfish.jpg'); if ($success != true) { print $rest->lastErrorText() . "\n"; exit; } // Read the response header. $responseStatusCode = $rest->ReadResponseHeader(); if ($responseStatusCode < 0) { print $rest->lastErrorText() . "\n"; exit; } print 'Response status code = ' . $responseStatusCode . "\n"; // We expect a 200 response status if the JPG data is coming. // Otherwise, we'll get a string response body with an error message(or no response body). if ($responseStatusCode == 200) { $bodyStream = new CkStream(); // The stream's sink will be a file. $bodyStream->put_SinkFile('qa_output/starfish.jpg'); // Read the response body to the stream. Given that we've // set the stream's sink to a file, it will stream directly // to the file. $success = $rest->ReadRespBodyStream($bodyStream,true); if ($success != true) { print $rest->lastErrorText() . "\n"; exit; } print 'Successfully received the JPG file.' . "\n"; } else { $errResponse = $rest->readRespBodyString(); if ($rest->get_LastMethodSuccess() != true) { print $rest->lastErrorText() . "\n"; } else { print $errResponse . "\n"; } } ?> |
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