(C#) Delete All Files

Permanently deletes all files owned by the user without moving it to the trash.

This example works by first getting a list of all fileIds, and then iterating over the list to delete each file.

See Google Drive Files delete for more information.

Chilkat .NET Downloads Chilkat .NET Framework Chilkat for .NET Core

bool 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.

Chilkat.AuthGoogle gAuth = new Chilkat.AuthGoogle();
gAuth.AccessToken = "GOOGLE-DRIVE-ACCESS-TOKEN";

Chilkat.Rest rest = new Chilkat.Rest();

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

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

// Get 10 results per page for testing.  (The default page size is 100, with a max of 1000.
rest.AddQueryParam("pageSize","10");

Chilkat.JsonObject json = new Chilkat.JsonObject();
int i;
int numFiles;

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

int pageNumber = 1;
string pageToken;
bool bContinueLoop = rest.LastMethodSuccess && (rest.ResponseStatusCode == 200);

string fileId;
Chilkat.StringArray saFileIds = new Chilkat.StringArray();

while (bContinueLoop == true) {

    Debug.WriteLine("---- Page " + Convert.ToString(pageNumber) + " ----");
    json.Load(jsonResponse);

    numFiles = json.SizeOfArray("files");
    i = 0;
    while (i < numFiles) {
        json.I = i;
        fileId = json.StringOf("files[i].id");
        Debug.WriteLine("name: " + json.StringOf("files[i].name"));
        Debug.WriteLine("id: " + fileId);
        saFileIds.Append(fileId);
        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;
    bool bHasMorePages = json.LastMethodSuccess;
    if (bHasMorePages == true) {
        rest.ClearAllQueryParams();
        rest.AddQueryParam("pageSize","10");
        rest.AddQueryParam("pageToken",pageToken);
        jsonResponse = rest.FullRequestNoBody("GET","/drive/v3/files");
        bContinueLoop = rest.LastMethodSuccess && (rest.ResponseStatusCode == 200);
        pageNumber = pageNumber + 1;
    }

}

// Before actually deleting, check for errors...
if (rest.LastMethodSuccess != true) {
    Debug.WriteLine(rest.LastErrorText);
    return;
}

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

// OK, we have the full list of files.  Delete each..
Chilkat.StringBuilder sbPath = new Chilkat.StringBuilder();
numFiles = saFileIds.Count;
i = 0;
while (i < numFiles) {
    fileId = saFileIds.GetString(i);

    rest.ClearAllQueryParams();

    sbPath.Clear();
    sbPath.Append("/drive/v3/files/");
    sbPath.Append(fileId);

    jsonResponse = rest.FullRequestNoBody("DELETE",sbPath.GetAsString());
    if (rest.LastMethodSuccess != true) {
        Debug.WriteLine(rest.LastErrorText);
        return;
    }

    // A successful response will have a status code equal to 204 and the response body is empty.
    // (If not successful, then there should be a JSON response body with information..)
    if (rest.ResponseStatusCode != 204) {
        Debug.WriteLine("response status code = " + Convert.ToString(rest.ResponseStatusCode));
        Debug.WriteLine("response status text = " + rest.ResponseStatusText);
        Debug.WriteLine("response header: " + rest.ResponseHeader);
        Debug.WriteLine("response JSON: " + jsonResponse);
        return;
    }

    i = i + 1;
    Debug.WriteLine(Convert.ToString(i) + ": Deleted " + fileId);
}

Debug.WriteLine("All Files Deleted.");