Node.js

Get GMail Message Metadata

See more GMail REST API Examples

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

NODEJS_PRELUDE

function chilkatExample() {

    var success = false;

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

    var http = new chilkat.Http();

    http.AuthToken = "ACCESS_TOKEN";

    http.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.
    var jsonMsgIds = new chilkat.JsonObject();
    success = jsonMsgIds.LoadFile("qa_data/json/gmail_message_ids.json");

    var resp = new chilkat.HttpResponse();

    var id;
    var i = 0;
    var count_i = jsonMsgIds.SizeOfArray("messages");
    while (i < count_i) {
        jsonMsgIds.I = i;
        id = jsonMsgIds.StringOf("messages[i].id");

        //  Get the metadata for this message ID.
        http.SetUrlVar("id",id);

        success = http.HttpNoBody("GET","https://www.googleapis.com/gmail/v1/users/userId/messages/{$id}?format=metadata",resp);
        if (success == false) {
            console.log(http.LastErrorText);
            return;
        }

        console.log("Response Status Code: " + resp.StatusCode);

        var jsonResponse = new chilkat.JsonObject();
        jsonResponse.Load(resp.BodyStr);
        jsonResponse.EmitCompact = false;
        console.log(jsonResponse.Emit());

        if (resp.StatusCode !== 200) {
            console.log("Failed.");
            return;
        }

        i = i+1;
    }

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

}

chilkatExample();