(PHP Extension) Get GMail Message Metadata

Demonstrates how to get the metadata for each message in a list of message IDs.

For more information, see https://developers.google.com/gmail/api/v1/reference/users/messages/get

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<?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.

$http = new CkHttp();

$http->put_AuthToken('ACCESS_TOKEN');

$http->put_Accept('application/json');

// Let's say we have the following JSON containing a list of message ID's

// {
//   "messages": [
//     {
//       "id": "1712bc1dc22da2a2",
//       "threadId": "1712bc1dc22da2a2"
//     },
//     {
//       "id": "1712b94fa2168040",
//       "threadId": "1712b94fa2168040"
//     },
//     {
//       "id": "1711e4bd96ded05e",
//       "threadId": "1711e4bd96ded05e"
//     },
//     {
//       "id": "1711de0d119e751e",
//       "threadId": "1711de0d119e751e"
//     },
//     {
//       "id": "1711c81a43050f59",
//       "threadId": "1711c81a43050f59"
//     },
//     {
//       "id": "1711c2c1516abce5",
//       "threadId": "1711c2c1516abce5"
//     },
//     {
//       "id": "1711c161e655c915",
//       "threadId": "1711c161e655c915"
//     },
//     {
//       "id": "171199c6e454558c",
//       "threadId": "171199c6e454558c"
//     },
//     {
//       "id": "17119474c8aa248e",
//       "threadId": "17119474c8aa248e"
//     }
//   ],
//   "nextPageToken": "16710921492249671162",
//   "resultSizeEstimate": 309
// }

// Normally your program would have the above JSON in a string variable (obtained from a previous call to get
// a list of message IDs from a GMail mailbox).  In this example, we'll load the JSON from a file.
$jsonMsgIds = new CkJsonObject();
$success = $jsonMsgIds->LoadFile('qa_data/json/gmail_message_ids.json');

$i = 0;
$count_i = $jsonMsgIds->SizeOfArray('messages');
while ($i < $count_i) {
    $jsonMsgIds->put_I($i);
    $id = $jsonMsgIds->stringOf('messages[i].id');

    // Get the metadata for this message ID.
    $http->SetUrlVar('id',$id);

    // resp is a CkHttpResponse
    $resp = $http->QuickRequest('GET','https://www.googleapis.com/gmail/v1/users/userId/messages/{$id}?format=metadata');
    if ($http->get_LastMethodSuccess() != true) {
        print $http->lastErrorText() . "\n";
        exit;
    }

    print 'Response Status Code: ' . $resp->get_StatusCode() . "\n";

    $jsonResponse = new CkJsonObject();
    $jsonResponse->Load($resp->bodyStr());
    $jsonResponse->put_EmitCompact(false);
    print $jsonResponse->emit() . "\n";

    if ($resp->get_StatusCode() != 200) {
        print 'Failed.' . "\n";

        exit;
    }

    $i = $i + 1;
}

// Use this online tool to generate parsing code from sample JSON: 
// Generate Parsing Code from JSON

?>