Perl

Get a REST Response Header by Name

Demonstrates Rest.ResponseHdrByName, which returns the value of a response header field by name. Header field names are case-insensitive.

Background. Response headers are available after ReadResponseHeader has read the status line and headers. Lookup by name is convenient when a specific header, such as Content-Type, is needed.

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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;
}

$statusCode = $rest->ReadResponseHeader();
if ($statusCode < 0) {
    print $rest->lastErrorText() . "\r\n";
    exit;
}

#  Return the value of a response header field by name.  Header field names are case-insensitive.
$contentType = $rest->responseHdrByName("Content-Type");
if ($rest->get_LastMethodSuccess() == 0) {
    print $rest->lastErrorText() . "\r\n";
    exit;
}

print "Content-Type: " . $contentType . "\r\n";