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(.NET Core C#) Search for Files in Google DriveThis 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.
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 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'"); 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); while (bContinueLoop == true) { Debug.WriteLine("---- Page " + Convert.ToString(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; Debug.WriteLine("name: " + json.StringOf("files[i].name")); Debug.WriteLine("id: " + json.StringOf("files[i].id")); Debug.WriteLine("mimeType: " + json.StringOf("files[i].mimeType")); Debug.WriteLine("-"); 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","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) { 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; } |
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