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PHP ActiveX Examples


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(PHP ActiveX) REST Read Response with Stream API

Demonstrates how to make a REST call that returns a binary body, and to receive the body through a stream API.

Chilkat ActiveX Downloads

ActiveX for 32-bit and 64-bit Windows

<?php

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

$rest = new COM("Chilkat_9_5_0.Rest");

//  Connect to the Amazon AWS REST server.
$bTls = 1;
$port = 443;
$bAutoReconnect = 1;
$success = $rest->Connect('s3.amazonaws.com',$port,$bTls,$bAutoReconnect);

//  Provide AWS credentials for the REST call.
$authAws = new COM("Chilkat_9_5_0.AuthAws");
$authAws->AccessKey = 'AWS_ACCESS_KEY';
$authAws->SecretKey = 'AWS_SECRET_KEY';
$authAws->ServiceName = 's3';
$success = $rest->SetAuthAws($authAws);

//  Set the bucket name via the HOST header.
//  In this case, the bucket name is "chilkat100".
$rest->Host = 'chilkat100.s3.amazonaws.com';

//  Send the request to download the JPG.
$success = $rest->SendReqNoBody('GET','/starfish.jpg');
if ($success != 1) {
    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) {
    $errResponse = $rest->readRespBodyString();
    if ($rest->LastMethodSuccess != 1) {
        print $rest->LastErrorText . "\n";
    }
    else {
        print $errResponse . "\n";
    }

    exit;
}

$bodyStream = new COM("Chilkat_9_5_0.Stream");
//  Set a 10 second read timeout for the stream.
//  (Give up if no data arrives within 10 seconds after calling a read method.)
$bodyStream->ReadTimeoutMs = 10000;

//  Create a background thread task to read the response body (which feeds
//  it to the bodyStream object.)
// readResponseBodyTask is a Chilkat_9_5_0.Task
$readResponseBodyTask = $rest->ReadRespBodyStreamAsync($bodyStream,1);

//  Start the task.
$success = $readResponseBodyTask->Run();

//  The application can now read the bodyStream...
while (($bodyStream->EndOfStream != 1)) {

    //  Read the next chunk of bytes (whatever is immediately available,
    //  or wait for more data (up to 10 seconds because we set the stream's ReadTimeoutMs property)
    $nextChunk = $bodyStream->ReadBytes();
    if ($bodyStream->LastMethodSuccess != 1) {
        print 'Failed to receive more response data.' . "\n";
        //  Make sure the background task is aborted/cancelled.
        $success = $readResponseBodyTask->Cancel();

        exit;
    }

    //  OK.. the app has the next chunk of the body, and may do whatever it wishes with it...
}

print 'Successfully received the entire response body.' . "\n";

?>

 

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