(JavaScript) Search for Files in Google Drive

This example follows the same methodology for listing all files in Google Drive in pages, but applies a search filter. It shows how to apply a query parameter for filtering the file results. See the Google Drive Files list for more optional HTTP parameters.

Note

This example is intended for running within a Chilkat.Js embedded JavaScript engine. All Chilkat JavaScript examples require Chilkat v11.4.0 or greater.

var success = false;

success = true;

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

// This example uses a previously obtained access token having permission for the 
// Google Drive scope.

var gAuth = new CkAuthGoogle();
gAuth.AccessToken = "GOOGLE-DRIVE-ACCESS-TOKEN";

var rest = new CkRest();

// Connect using TLS.
var bAutoReconnect = true;
success = rest.Connect("www.googleapis.com",443,true,bAutoReconnect);

// Provide the authentication credentials (i.e. the access token)
rest.SetAuthGoogle(gAuth);

// Get 5 results per page for testing.  (The default page size is 100, with a max of 1000.
rest.AddQueryParam("pageSize","5");

// Our search filter is to list all files containing ".jpg" (i.e. all JPG image files)
rest.AddQueryParam("q","name contains '.jpg'");

var json = new CkJsonObject();
var i;
var numFiles;

// Send the request for the 1st page.
var jsonResponse = rest.FullRequestNoBody("GET","/drive/v3/files");

var pageNumber = 1;
var pageToken;
var bContinueLoop = rest.LastMethodSuccess && (rest.ResponseStatusCode == 200);

while (bContinueLoop == true) {

    console.log("---- Page " + pageNumber + " ----");

    // Iterate over each file in the response and show the name, id, and mimeType.
    json.Load(jsonResponse);

    numFiles = json.SizeOfArray("files");
    i = 0;
    while (i < numFiles) {
        json.I = i;
        console.log("name: " + json.StringOf("files[i].name"));
        console.log("id: " + json.StringOf("files[i].id"));
        console.log("mimeType: " + json.StringOf("files[i].mimeType"));
        console.log("-");
        i = i+1;
    }

    // Get the next page of files.
    // If the "nextPageToken" is present in the JSON response, then use it in the "pageToken" parameter
    // for the next request.   If no "nextPageToken" was present, then this was the last page of files.
    pageToken = json.StringOf("nextPageToken");
    bContinueLoop = false;
    var bHasMorePages = json.LastMethodSuccess;
    if (bHasMorePages == true) {
        rest.ClearAllQueryParams();
        rest.AddQueryParam("pageSize","5");
        rest.AddQueryParam("pageToken",pageToken);
        rest.AddQueryParam("q","name contains '.jpg'");

        jsonResponse = rest.FullRequestNoBody("GET","/drive/v3/files");
        bContinueLoop = rest.LastMethodSuccess && (rest.ResponseStatusCode == 200);
        pageNumber = pageNumber+1;
    }

}

if (rest.LastMethodSuccess !== true) {
    console.log(rest.LastErrorText);
    return;
}

// A successful response will have a status code equal to 200.
if (rest.ResponseStatusCode !== 200) {
    console.log("response status code = " + rest.ResponseStatusCode);
    console.log("response status text = " + rest.ResponseStatusText);
    console.log("response header: " + rest.ResponseHeader);
    console.log("response JSON: " + jsonResponse);
    return;
}