Perl GMail: Get a specific message (format="minimal")

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Gets a specific message using format=minimal.

Documentation: https://developers.google.com/gmail/api/v1/reference/users/messages/get

use chilkat();

$rest = chilkat::CkRest->new();

#   Provide a previously obtained OAuth2 access token.
$oauth2 = chilkat::CkOAuth2->new();
$oauth2->put_AccessToken("OAUTH2_ACCESS_TOKEN");
$rest->SetAuthOAuth2($oauth2);

$success = $rest->Connect("www.googleapis.com",443,1,1);
if ($success != 1) {
    print $rest->lastErrorText() . "\r\n";
    exit;
}

$rest->AddPathParam("messageId","15fc237e79da4174");

$rest->AddQueryParam("format","minimal");

$sbJson = chilkat::CkStringBuilder->new();
$success = $rest->FullRequestNoBodySb("GET","/gmail/v1/users/me/messages/messageId",$sbJson);
if ($success != 1) {
    print $rest->lastErrorText() . "\r\n";
    exit;
}

if ($rest->get_ResponseStatusCode() != 200) {
    print "Received error response code: " . $rest->get_ResponseStatusCode() . "\r\n";
    print "Response body:" . "\r\n";
    print $sbJson->getAsString() . "\r\n";
    exit;
}

$json = chilkat::CkJsonObject->new();
$json->LoadSb($sbJson);

#  The following code parses the JSON response.
#  A sample JSON response is shown below the sample code.

$id = $json->stringOf("id");
$threadId = $json->stringOf("threadId");
$snippet = $json->stringOf("snippet");
$historyId = $json->stringOf("historyId");
$internalDate = $json->stringOf("internalDate");
$sizeEstimate = $json->IntOf("sizeEstimate");
$i = 0;
$count_i = $json->SizeOfArray("labelIds");
while ($i < $count_i) {
    $json->put_I($i);
    $strVal = $json->stringOf("labelIds[i]");
    $i = $i + 1;
}

print "Example Completed." . "\r\n";

Sample JSON Response Body

{
  "id": "15fc237e79da4174",
  "threadId": "15fc237e79da4174",
  "labelIds": [
    "IMPORTANT",
    "SENT",
    "INBOX"
  ],
  "snippet": "This is a test email with 2 attachments.",
  "historyId": "1582",
  "internalDate": "1510791964000",
  "sizeEstimate": 11153
}