Get list of named ranges using googlesheets api v4 in c# - google-sheets-api

Question

I need to be able to get a list of all named ranges in a spreadsheet, but can't figure out how to do this.
I've found the following code but its not c# - how do I do the same thing in c#?
Code that does what I need but not in c#
function getNamedRanges2(spreadsheetId) {
var ss = SpreadsheetApp.openById(spreadsheetId);
var sheetIdToName = {};
ss.getSheets().forEach(function(e) {
sheetIdToName[e.getSheetId()] = e.getSheetName();
});
var result = {};
Sheets.Spreadsheets.get(spreadsheetId, {fields: "namedRanges"})
.namedRanges.forEach(function(e) {
var sheetName = sheetIdToName[e.range.sheetId.toString()];
var a1notation = ss.getSheetByName(sheetName).getRange(
e.range.startRowIndex + 1,
e.range.startColumnIndex + 1,
e.range.endRowIndex - e.range.startRowIndex,
e.range.endColumnIndex - e.range.startColumnIndex
).getA1Notation();
result[e.name] = sheetName + "!" + a1notation;
});
return result;
}
function main() {
var spreadsheetId = "### spreadsheet ID ###";
var result = getNamedRanges2(spreadsheetId);
Logger.log(JSON.stringify(result));
}

Answer 1

Based on the Quickstart for Sheets API and the C# sample code for Method: spreadsheets.get2, you can combine the two code snippets as following, in order to retrieve named ranges:
using Google.Apis.Auth.OAuth2;
using Google.Apis.Sheets.v4;
using Google.Apis.Sheets.v4.Data;
using Google.Apis.Services;
using Google.Apis.Util.Store;
using System;
using System.Collections.Generic;
using System.IO;
using System.Threading;
using Newtonsoft.Json;
using Data = Google.Apis.Sheets.v4.Data;
namespace SheetsQuickstart
{
class Program
{
// If modifying these scopes, delete your previously saved credentials
// at ~/.credentials/sheets.googleapis.com-dotnet-quickstart.json
static string[] Scopes = { SheetsService.Scope.SpreadsheetsReadonly };
static string ApplicationName = "Google Sheets API .NET Quickstart";
static void Main(string[] args)
{
UserCredential credential;
using (var stream =
new FileStream("credentials.json", FileMode.Open, FileAccess.Read))
{
// The file token.json stores the user's access and refresh tokens, and is created
// automatically when the authorization flow completes for the first time.
string credPath = "token.json";
credential = GoogleWebAuthorizationBroker.AuthorizeAsync(
GoogleClientSecrets.Load(stream).Secrets,
Scopes,
"user",
CancellationToken.None,
new FileDataStore(credPath, true)).Result;
Console.WriteLine("Credential file saved to: " + credPath);
}
// Create Google Sheets API service.
var service = new SheetsService(new BaseClientService.Initializer()
{
HttpClientInitializer = credential,
ApplicationName = ApplicationName,
});
// The spreadsheet to request.
string spreadsheetId = "YOUR SPREADSHEET ID";
// TODO: Update placeholder value.
SpreadsheetsResource.GetRequest request = service.Spreadsheets.Get(spreadsheetId);
request.Fields = "namedRanges";
// To execute asynchronously in an async method, replace `request.Execute()` as shown:
Data.Spreadsheet response = request.Execute();
// TODO: Change code below to process the `response` object:
Console.WriteLine(JsonConvert.SerializeObject(response));
}
}
}
The response will contain only the named ranges when request.Fields = "namedRanges"; is specified.