Perl

Read the REST Response Header and Status Code

Demonstrates Rest.ReadResponseHeader, which reads the HTTP response status line and header fields after a staged send. The returned integer is the HTTP status code, or -1 if no response was received.

Background. The staged request model separates sending from reading: a SendReq method transmits the request, ReadResponseHeader reads the status line and headers, and a ReadResp method reads the body. This gives fine control over large or streamed messages compared with the single-call full-request methods.

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Perl

use chilkat();

$success = 0;

$rest = chilkat::CkRest->new();
$bTls = 1;
$bAutoReconnect = 1;
$success = $rest->Connect("example.com",443,$bTls,$bAutoReconnect);
if ($success == 0) {
    print $rest->lastErrorText() . "\r\n";
    exit;
}

$success = $rest->SendReqNoBody("GET","/api/items/123");
if ($success == 0) {
    print $rest->lastErrorText() . "\r\n";
    exit;
}

#  Read the HTTP response status line and header fields.  The returned integer is the HTTP status
#  code (such as 200, 404, or 500), or -1 if no response was received.
$statusCode = $rest->ReadResponseHeader();
if ($statusCode < 0) {
    print $rest->lastErrorText() . "\r\n";
    exit;
}

print "Response status code: " . $statusCode . "\r\n";